Method for mounting radiation treatment blocks on a radiation treatment block mounting plate, an adjustable radiation treatment block mounting tray and a template and method for making a form for casting a radiation treatment block

A method for mounting at least one radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face and at least one mounting hole or slot extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving one or more external clamping means, said mounting hole or slot being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface and at least one side surface;
• (c) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate;
• (d) providing external clamping means for compressibly affixing each radiation treatment block to said upper face of said radiation treatment block mounting plate;
• (e) attaching said external clamping means to said radiation treatment block mounting plate;
• (f) positioning said external clamping means on each radiation treatment block;
• (g) adjusting said external clamping means to compressibly affix said radiation treatment block to said upper face of the radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate further having at least one mounting hole or slot extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving a clamping device, said mounting hole or slot being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface and at least one side surface;
• (c) providing at least one clamping device to externally affix said radiation treatment block to said radiation treatment block mounting plate, at least one clamping device having an end portion sized and shaped to fit within a mounting hole or slot for securing said clamping device to said radiation treatment block mounting plate and an opposite end portion sized and shaped to engage said top surface of said radiation treatment block;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate;
• (e) positioning said end portion of said clamping device through a mounting hole or slot and securing said clamping device to said radiation treatment block mounting plate;
• (f) positioning said opposite end portion of said clamping device above and adjacent to said top surface of said radiation treatment block;
• and
• (g) adjusting said clamping device until at least part of said opposite end portion of said clamping device engages said top surface of said radiation treatment block and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate further having at least one mounting hole or slot extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving a clamping device, said mounting hole or slot being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface and at least one side surface;
• (c) providing at least one clamping device to externally affix said radiation treatment block to said radiation treatment block mounting plate, wherein at least one clamping device comprises a shaft and a threaded nut, said shaft having a threaded end portion and an opposite end portion sized and shaped to engage said top surface of said radiation treatment block;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate,
• (e) inserting said threaded end portion of said shaft through a mounting hole or slot in said radiation treatment block mounting plate, said mounting hole or slot being positioned proximate to at least one side surface of said radiation treatment block;
• (f) attaching a threaded nut onto said threaded end portion of said shaft;
• (g) positioning said shaft until said opposite end portion of said shaft is positioned above and adjacent to said top surface of said radiation treatment block;
• (h) adjusting said threaded nut on said threaded end portion of said shaft until at least part of said opposite end portion of said shaft engages said top surface of said radiation treatment block and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate further having at least one mounting hole or slot extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving a clamping device, said mounting hole or slot being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface and at least one side surface, at least one side surface having at least one groove positioned therein, said groove extending from said top surface to said bottom surface and projecting from said side surface into said radiation treatment block, said groove being sized and shaped to allow a shaft of a clamping device to fit at least partially within said groove;
• (c) providing at least one clamping device to externally affix said radiation treatment block to said radiation treatment block mounting plate, wherein at least one clamping device comprises a shaft and a threaded nut, said shaft having a threaded end portion and an opposite end portion sized and shaped to engage said top surface of said radiation treatment block;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate;
• (e) inserting said threaded end portion of said shaft through a mounting hole or slot in said radiation treatment block mounting plate, said mounting hole or slot being positioned proximate to a groove in a side surface of said radiation treatment block;
• (f) attaching a threaded nut onto said threaded end portion of said shaft;
• (g) positioning said shaft of said clamping device until said shaft is positioned at least partially in said groove and said opposite end portion of said shaft is positioned above and adjacent to said top surface of said radiation treatment block;
• (h) adjusting said threaded nut on said threaded end portion of said shaft until at least part of said opposite end portion of said shaft engages said top surface of said radiation treatment block and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate further having at least one mounting hole or slot extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving a clamping device, said mounting hole or slot being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface and at least one side surface;
• (c) providing at least one clamping device to externally affix said radiation treatment block to said radiation treatment block mounting plate, at least one clamping device comprising a rod, a shaft, and a threaded nut, said rod having one end portion hingeably connected to said shaft and an opposite threaded end portion, said shaft having an end portion hingeably connected to said rod and an opposite end portion sized and shaped to engage said top surface of said radiation treatment block;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate,
• (e) inserting said threaded end portion of said rod of said clamping device through a mounting hole or slot in said radiation treatment block mounting plate, said mounting hole or slot being positioned proximate to at least one side surface of said radiation treatment block;
• (f) attaching a threaded nut onto said threaded end portion of said rod;
• (g) pivoting said shaft of said clamping device until said opposite end portion of said shaft is positioned above and adjacent to said top surface of said radiation treatment block;
• (h) adjusting said threaded nut on said threaded end portion of said rod until at least part of said opposite end portion of said shaft engages said top surface of said radiation treatment block and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate further having at least one mounting hole or slot extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving a clamping device, said mounting hole or slot being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface, and at least one side surface, at least one side surface having at least one groove positioned therein, said groove extending from said top surface to said bottom surface and projecting from said side surface into said radiation treatment block, said groove being sized and shaped to allow a shaft of a clamping device to fit at least partially within said groove;
• (c) providing at least one clamping device to externally affix said radiation treatment block to said radiation treatment block mounting plate, at least one clamping device comprising a rod, a shaft, and a threaded nut, said rod having one end portion hingeably connected to said shaft and an opposite threaded end portion, said shaft having an end portion hingeably connected to said rod and an opposite end portion sized and shaped to engage said top surface of said radiation treatment block;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate;
• (e) inserting said threaded end portion of said rod of said clamping device through a mounting hole or slot in said radiation treatment block mounting plate, said mounting hole or slot being positioned proximate to a groove in a side surface of said radiation treatment block;
• (f) attaching a threaded nut onto said threaded end portion of said rod;
• (g) pivoting said shaft of said clamping device until said shaft is positioned at least partially in a groove in a side surface of said radiation treatment block and said opposite end portion of said shaft is positioned above and adjacent to said top surface of said radiation treatment block;
• (h) adjusting said nut on said threaded end portion of said rod until at least part of said opposite end portion of said shaft engages said top surface of said radiation treatment block and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate further having a plurality of mounting holes or slots extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving a clamping device, said mounting holes or slots being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface, and four side surfaces, each side surface having a groove positioned therein, said groove extending from said top surface to said bottom surface and projecting from said side surface into said radiation treatment block, said groove being sized and shaped to allow a shaft of a clamping device to fit at least partially within said groove;
• (c) providing four clamping devices to externally affix said radiation treatment block to said radiation treatment block mounting plate, each clamping device comprising a rod, a shaft, and a threaded nut, said rod having one end portion hingeably connected to said shaft and an opposite threaded end portion, said shaft having an end portion hingeably connected to said rod and an opposite substantially hook shaped end portion;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate;
• (e) inserting said threaded end portion of each rod of each clamping device through a mounting hole or slot in said radiation treatment block mounting plate, said mounting hole or slot being positioned proximate to a groove in a side surface of said radiation treatment block;
• (f) attaching a threaded nut onto said threaded end portion of each rod;
• (g) pivoting said shaft of each clamping device until said shaft is positioned at least partially in a groove in a side surface of said radiation treatment block and said substantially hook shaped end portion of each shaft is positioned above and adjacent to said top surface of said radiation treatment block;
• (h) adjusting said nut on said threaded end portion of each rod until at least part of each substantially hook shaped end portion of each shaft engages said top surface of said radiation treatment block and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate having at least one mounting hole or slot extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving a clamping device, said mounting hole or slot being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface and at least three side surfaces, the intersection of a side surface with another side surface forming a corner edge, said radiation treatment block having a groove positioned on at least one corner edge, said groove extending from said top surface to said bottom surface and projecting from said corner edge into said radiation treatment block, said groove sized and shaped to allow a shaft of a clamping device to fit at least partially within said groove;
• (c) providing at least one clamping device to externally affix said radiation treatment block to said radiation treatment block mounting plate, said clamping device comprising a rod, a shaft, and a threaded nut, said rod having one end portion hingeably connected to said shaft and an opposite threaded end portion, said shaft having an end portion hingeably connected to said rod and an opposite end portion shaped and sized to engage said top surface of said radiation treatment block;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate;
• (e) inserting said threaded end portion of said rod of said clamping device through a mounting hole or slot in said radiation treatment block mounting plate, said mounting hole or slot positioned proximate to a groove in a corner edge;
• (f) attaching a threaded nut onto said threaded end portion of said rod;
• (g) pivoting said shaft of said clamping device until said opposite end portion of said shaft is positioned above and adjacent to said top surface of said radiation treatment block;
• and
• (h) adjusting said nut on said threaded end portion of said rod until at least part of said opposite end portion of said shaft engages said top surface of said radiation treatment block and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate having a plurality of mounting holes or slots extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving a clamping device, said mounting holes or slots being positioned to allow radiation treatment blocks having different sizes to be affixed to said radiation treatment block mounting tray;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface and at least three side surfaces, the intersection of a side surface with another side surface forming a corner edge, said radiation treatment block having a groove positioned on at least one corner edge, said groove extending from said top surface to said bottom surface and projecting from said corner edge into said radiation treatment block, said groove sized and shaped to allow a shaft of a clamping device to fit at least partially within said groove;
• (c) providing at least one clamping device to externally affix said radiation treatment block to said radiation treatment block mounting plate, said clamping device comprising a shaft and a threaded nut, said shaft having a threaded end portion and an opposite end portion sized and shaped to engage said top surface of the radiation treatment block;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate;
• (e) inserting said threaded end portion of said shaft of said clamping device through a mounting hole or slot in said radiation treatment block mounting plate, said mounting hole or slot positioned proximate to a groove in a corner edge;
• (f) attaching a threaded nut onto said threaded end portion of said shaft;
• (g) positioning said shaft of said clamping device until said shaft is positioned at least partially in said groove and said opposite end portion of said shaft is positioned above and adjacent to said top surface of radiation treatment block;
• (h) adjusting said threaded nut on said threaded end portion of said shaft until at least part of said opposite end portion of said shaft engages said top surface of said radiation treatment block and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

A method for mounting a radiation treatment block on a radiation treatment block mounting plate comprising:

• (a) providing a radiation treatment block mounting plate, said radiation treatment block mounting plate having an upper face and a lower face, said radiation treatment block mounting plate further having at least one mounting hole or slot extending through said radiation treatment block mounting plate from said upper face to said lower face for receiving an external clamping device, said mounting hole or slot positioned to allow the mounting of radiation treatment blocks having different sizes to said radiation treatment block mounting plate;
• (b) providing at least one radiation treatment block, said radiation treatment block having a top surface, a bottom surface, and at least one side surface, at least one side surface having at least one groove positioned therein, said groove extending from said top surface to said bottom surface and projecting from said side surface into said radiation treatment block, said groove being sized and shaped to allow a shaft of a clamping device to fit at least partially within said groove;
• (c) providing at least one clamping device to externally affix said radiation treatment block to said radiation treatment block mounting plate, at least one clamping device comprising a rod, a shaft, and a threaded nut, said rod having one end portion hingeably connected to said shaft and an opposite threaded end portion, said shaft having an end portion hingeably connected to said rod and an opposite oversized end portion, at least one dimension of said oversized end portion being greater than a dimension of said groove;
• (d) positioning said bottom surface of said radiation treatment block on said upper face of said radiation treatment block mounting plate;
• (e) inserting said threaded end portion of said rod of said clamping device through a mounting hole or slot in said radiation treatment block mounting plate, said mounting hole or slot being positioned proximate to a groove in a side surface of said radiation treatment block;
• (f) attaching a threaded nut onto said threaded end portion of said rod;
• (g) pivoting said shaft of said clamping device until said shaft is positioned at least partially in a groove in a side surface of said radiation treatment block and said oversized end portion of said shaft is positioned above and adjacent to said top surface of said radiation treatment block;
• (h) adjusting said nut on said threaded end portion of said rod until said oversized end portion of said shaft engages said top surface of said radiation treatment block or one or more face of said groove and compressibly affixes said radiation treatment block to said upper face of said radiation treatment block mounting plate.

An adjustable radiation treatment block mounting tray comprising:

• (a) a substantially rigid frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening, and at least one bore for receiving a releasable fastener therein;
• (b) a plate having an upper face and a lower face, said lower face of said plate being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face of said plate, and at least one orifice extending through said plate from said upper face to said lower face, with at least one orifice being positioned over at least one bore in said frame body;
• (c) at least one releasable fastener to releasably secure said plate to said frame body, said releasable fastener having a head portion at one end and a shank portion at an opposite end, said shank portion of each releasable fastener being positioned through an orifice in said plate and inserted into a bore in said frame body, wherein a diameter of said orifice is larger than a diameter of said shank portion to allow said plate to move relative to said frame body when said releasable fastener is in a released position, a diameter of said head portion being larger than a diameter of said orifice such that when said releasable fastener is in a fastened position said head portion compressibly secures said plate to said frame body.

An adjustable radiation treatment block mounting tray comprising:

• (a) a substantially rigid frame body, said frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, a generally central opening and least one bore for receiving a releasable fastener therein;
• (b) a plate having an upper face and a lower face, said lower face of said plate being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face of said plate and at least one orifice extending through said plate from said upper face to said lower face, with at least one orifice being positioned over at least one bore in said frame body;
• (c) at least one releasable fastener to releasably secure said plate to said frame body, said releasable fastener having a head portion at one end, a shank portion at an opposite end and a washer positioned on said shank portion adjoining said head portion, said shank portion of each releasable fastener being positioned through an orifice in said plate and inserted into a bore in said frame body, a diameter of said orifice being larger than a diameter of said shank portion to allow said plate to move relative to said frame body when said releasable fastener is in a released position, a diameter of said washer being greater than a diameter of said orifice such that when said releasable fastener is in a fastened position said releasable fastener and washer compressibly secure said plate to said frame body.

An adjustable radiation treatment block mounting tray comprising:

• (a) a substantially rigid frame body, said frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, opposing side frame body members, a generally central opening, and a plurality of bores for receiving a releasable fastener therein;
• (b) a plate having an upper face and a lower face, said lower face of said plate being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face of said plate, and four orifices extending through said plate from said upper face to said lower face, each orifice positioned over a bore in said frame body;
• (c) four releasable fasteners to releasably secure said plate to said frame body, each releasable fastener having a head portion at one end, a shank portion at an opposite end and a washer positioned on said shank portion adjoining said head portion, each shank portion of each releasable fastener being positioned through an orifice in said plate and inserted into a bore in said frame body, a diameter of said orifice being larger than a diameter of said shank portion to allow said plate to move relative to said frame body when said releasable fastener is in a released position, a diameter of said washer being greater than a diameter of said orifice such that when said releasable fastener is in a fastened position, said releasable fasteners and washers compressibly secure said plate to said frame body.

An adjustable radiation treatment block mounting tray comprising:

• (a) a substantially rigid frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening, and at least one bore for receiving a releasable fastener therein;
• (b) a plate having an upper face and a lower face, said bottom face of said frame body being positioned on said upper face of said plate, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face of said plate, and at least one orifice extending through said plate from said upper face to said lower face, with at least one orifice being positioned over at least one bore in said frame body;
• (c) at least one releasable fastener to releasably secure said plate to said frame body, said releasable fastener having a head portion at one end and a shank portion at an opposite end, said shank portion of each releasable fastener being positioned through an orifice in said plate and inserted into a bore in said frame body, wherein a diameter of said orifice is larger than a diameter of said shank portion to allow said plate to move relative to said frame body when said releasable fastener is in a released position, a diameter of said head portion being larger than a diameter of said orifice such that when said releasable fastener is in a fastened position said head portion compressibly secures said plate to said frame body.

An adjustable radiation treatment block mounting tray comprising:

• (a) a substantially rigid frame body, said frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, a generally central opening and least one bore for receiving a releasable fastener therein;
• (b) a plate having an upper face and a lower face, said bottom face of said frame body being positioned on said upper face of said plate, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face of said plate and at least one orifice extending through said plate from said upper face to said lower face, with at least one orifice being positioned over at least one bore in said frame body;
• (c) at least one releasable fastener to releasably secure said plate to said frame body, said releasable fastener having a head portion at one end, a shank portion at an opposite end and a washer positioned on said shank portion adjoining said head portion, said shank portion of each releasable fastener being positioned through an orifice in said plate and inserted into a bore in said frame body, a diameter of said orifice being larger than a diameter of said shank portion to allow said plate to move relative to said frame body when said releasable fastener is in a released position, a diameter of said washer being greater than a diameter of said orifice such that when said releasable fastener is in a fastened position said releasable fastener and washer compressibly secure said plate to said frame body.

An adjustable radiation treatment block mounting tray comprising:

• (a) a plate having an upper face and a lower face, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face, said plate further having a plurality of bores for receiving a releasable fastener therein;
• (b) a substantially rigid frame body having a top face and a bottom face, said bottom face of said frame body being positioned on said upper face of said plate, said frame body having an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening, said frame body further having at least one orifice extending through said frame body from said top face to said bottom face, at least one orifice being positioned over at least one bore in said plate;
• (c) at least one releasable fastener to releasably secure said frame body to said plate, said fastener having a head portion at one end and a shank portion at an opposite end, said shank portion of each releasable fastener being positioned through an orifice in said frame body and inserted into a bore in said plate, a diameter of said orifice being larger than a diameter of said shank portion to allow said frame body to move relative to said plate when said releasable fastener is in a released position, a diameter of said head portion being larger than a diameter of said orifice such that when said releasable fastener is in a fastened position said head portion compressibly secures said frame body to said plate.

An adjustable radiation treatment block mounting tray comprising:

• (a) a plate having an upper face and a lower face, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face, said plate further having a plurality of bores for receiving a releasable fastener therein;
• (b) a substantially rigid frame body having a top face and a bottom face, said bottom face of said frame body being positioned on said upper face of said plate, said frame body having an upper frame body member, a lower frame body member, opposing side frame body members, said frame body having a generally central opening, said frame body further having at least one orifice extending through said frame body from said top face to said bottom face, at least one orifice being positioned such that said orifice is aligned over at least one bore in said plate;
• (c) at least one releasable fastener to releasably secure said frame body to said plate, said releasable fastener having a head portion at one end, a shank portion at an opposite end and a washer positioned on said shank portion adjoining said head portion, said shank portion of each releasable fastener being positioned through an orifice in said plate and inserted into a bore in said frame body, a diameter of said orifice being larger than a diameter of said shank portion to allow said plate to move relative to said frame body when said releasable fastener is in a released position, a diameter of said washer being greater than a diameter of said orifice such that when said releasable fastener is in a fastened position said releasable fastener and washer compressibly secure said frame body to said plate.

An adjustable radiation treatment block mounting tray comprising:

• (a) a substantially rigid frame body, said frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening, said frame body further having a plurality of threaded bores for receiving a threaded rod therein;
• (b) a plate having an upper face and a lower face, said lower face of said plate being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face, said plate further having at least one orifice extending through said plate from said upper face to said lower face, at least one orifice being positioned over at least one threaded bore in said frame body;
• (c) at least one rod having opposing end portions, both of said end portions of said rod being threaded, one end portion of said rod being inserted into a threaded bore in said frame body, an opposite exposed end portion of said rod being positioned through an orifice in said plate, a diameter of said rod being less than a diameter of said orifice in said plate, a threaded nut being attached to said exposed end portion of said rod, a diameter of said nut being greater than a diameter of said orifice such that when said nut is in a fastened position said nut compressibly secures said plate to said frame body and when said nut is in a released position allowing said plate to move relative to said frame body.

An adjustable radiation treatment block mounting tray comprising:

• (a) a substantially rigid frame body, said frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening, said frame body further having a plurality of threaded bores for receiving a threaded rod therein;
• (b) a plate having an upper face and a lower face, said lower face of said plate being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face, said plate further having at least one orifice extending through said plate from said upper face to said lower face, at least one orifice being positioned over at least one threaded bore in said frame body;
• (c) at least one rod having opposing end portions, both of said end portions of said rod being threaded, one end portion of said rod being inserted into a threaded bore in said frame body, an opposite exposed end portion of said rod being positioned through an orifice in said plate, a diameter of said rod being less than a diameter of an orifice in said plate, a washer being positioned over said exposed end portion of said rod and positioned on said upper face of said plate, a diameter of said washer being greater than a diameter of said orifice, a nut being attached to said exposed end portion of said rod, such that when said nut is in a fastened position said nut and washer compressibly secure said plate to said frame body and when said nut is in a released position allowing said plate to move relative to said frame body.

An adjustable radiation treatment block mounting tray comprising:

• (a) a substantially rigid frame body, said frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening, said frame body further having at least one tray adjustment slot extending through said frame body from said top face to said bottom face;
• (b) a plate having an upper face and a lower face, said lower face of said plate being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face, said plate further having at least one tray adjustment slot extending through said plate from said upper face to said lower face, at least one tray adjustment slot in said plate being generally perpendicular to a tray adjustment slot in said frame body and being positioned to overlap a tray adjustment slot in said frame body;
• (c) at least one releasable fastener to releasably secure said plate to said frame body, said releasable fastener having a head portion at one end, a shank portion at an opposite end, said shank portion of each releasable fastener positioned through both a tray adjustment slot in said plate and a tray adjustment slot in said frame body wherein when said releasable fastener is in a fastened position said releasable fastener compressibly secures said plate to said frame body and when said releasable fastener is in a released position said releasable fastener allows said plate to move relative to said frame body.

A method for adjusting a radiation treatment block in a radiation beam comprising:

• (a) providing a radiation treatment block mounted on a plate of an adjustable radiation treatment block mounting tray, said adjustable radiation treatment block mounting tray being installed on a radiation treatment machine, said adjustable treatment block mounting tray comprising:
• a substantially rigid frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening;
• a plate having an upper face and a lower face, said lower face of said plate being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face of said plate;
• means to releasably secure said plate to said frame body, said means allowing said plate to move relative to said frame body when said means is in a released position and when said means is in a fastened position said means compressibly securing said plate to said frame body;
• (b) adjusting said means to a released position so that said plate and said radiation treatment block affixed thereto can move relative to said frame body;
• (c) aligning said radiation treatment block within said radiation beam by moving said plate until said radiation treatment block is correctly aligned within said radiation beam for a prescribed treatment of a patient;
• (d) adjusting said means to a fastened position compressibly securing said plate to said frame body and securing said radiation treatment block within said radiation beam.

A method for adjusting a radiation treatment block in a radiation beam comprising:

• (a) providing a radiation treatment block mounted on a plate of an adjustable radiation treatment block mounting tray, said adjustable radiation treatment block mounting tray being installed on a radiation treatment machine, said adjustable radiation treatment block mounting tray comprising:
• a substantially rigid frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening, said frame body further having at least one bore for receiving a releasable fastener therein;
• a plate having an upper face and a lower face, said lower face of said plate being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face of said plate, said plate further having at least one orifice extending through said plate from said upper face to said lower face, at least one orifice being positioned over at least one bore in said frame body;
• at least one releasable fastener to releasably secure said plate to said frame body, at least one releasable fastener having a head portion at one end, a shank portion at an opposite end, said shank portion of said each releasable fastener being positioned through an orifice in said plate and inserted into a bore in said frame body, a diameter of said orifice being larger than a diameter of said shank portion to allow said plate to move relative to said frame body when said releasable fastener is in a released position, a diameter of said head portion being greater than a diameter of said orifice such that when said releasable fastener is in a fastened position said head portion compressibly secures said plate to said frame body;
• (b) adjusting each releasable fastener to a released position so that said plate and said radiation treatment block affixed thereto can move relative to said frame body;
• (c) aligning said radiation treatment block within said radiation beam by moving said plate until said radiation treatment block is correctly aligned within said radiation beam for a prescribed treatment of a patient;
• (d) adjusting at least one releasable fastener until said releasable fastener is in a fastened position compressibly securing said plate to said frame body and securing said radiation treatment block within said radiation beam.

A method for adjusting a radiation treatment block in a radiation treatment beam comprising:

• (a) providing a radiation treatment block mounted on a plate of an adjustable radiation treatment block mounting tray, said adjustable radiation treatment block mounting tray being installed on a radiation treatment machine, said adjustable radiation treatment block mounting tray comprising:
• a substantially rigid frame body having a top face and a bottom face, an upper frame body member, a lower frame body member, and opposing side frame body members, said frame body having a generally central opening, said frame body further having at least one bore for receiving a releasable fastener therein;
• a plate having an upper face and a lower face, said lower face being positioned on said top face of said frame body, said plate having at least one mounting hole or slot extending through said plate from said upper face to said lower face for use in mounting a radiation treatment block to said upper face, said plate further having at least one orifice extending through said plate from said upper face to said lower face, at least one orifice being positioned over at least one bore in said frame body;
• at least one releasable fastener to releasably secure said plate to said frame body, at least one releasable fastener having a head portion at one end, a shank portion at an opposite end and a washer positioned on said shank portion adjoining said head portion, said shank portion of each releasable fastener being positioned through an orifice in said plate and inserted into a bore in said frame body, a diameter of said orifice being larger than a diameter of said shank portion to allow said plate to move relative to said frame body when said releasable fastener is in a released position, a diameter of said washer being greater than a diameter of said orifice such that when said releasable fastener is in a fastened position said releasable fastener and washer compressibly secure said plate to said frame body;
• (b) adjusting each releasable fastener to a released position so that said plate and radiation treatment block can move relative to said frame body;
• (c) aligning said radiation treatment block within said radiation beam by moving said plate until said radiation treatment block is correctly aligned within said radiation beam for a prescribed treatment of a patient;
• (d) adjusting at least one releasable fastener until said fastener is in a fastened position compressibly securing said plate to said frame body and securing said radiation treatment block within said radiation beam.