US 5,497,409 A · Radiogenic unit

Abstract

A radiogenic unit includes an X-ray tube having an anode disposed at a first end thereof and a cathode disposed at a second end thereof, a high-voltage supply circuit which supplies power to the X-ray tube in single pole mode and which includes a heating transformer for the cathode, and a casing. The casing includes first and second parts imperviously sealed against fluids and X-rays and hermetically sealed to one another. The first part is made of an electrically insulating material, has a first cavity formed therein in which is housed the X-ray tube, and houses a conductive element for the anode. The second part is made of an electrically insulating material and has additional cavities formed therein in which are housed the high-voltage supply circuit. Preferably, the X-ray tube is shielded by three cylinders of different potentials.

Claims18

Dependent claims

A radiogenic unit comprising a casing in which is disposed an X-ray tube having a high-voltage supply circuit in a single-pole mode, said casing further comprising:

a first casing part, said first casing part being made of an electrically insulative material and being metalized on the exterior, said first casing part including a large open cavity in which is housed said X-ray tube, a first section of said X-ray tube containing an anode supported by a copper cylinder, said anode being electrically connected to said cylinder and said cylinder being electrically connected to an electrical and thermal frame of said unit;
and
a second casing part, said second casing part being made of an electrically insulative material and being metalized on the exterior, said second casing part including cavities to house said high-voltage supply circuit of said tube and to house a heating transformer for a cathode;
wherein said first and second casing parts are imperviously sealed against fluids and X-rays and are hermetically sealed to each other.

1 more element

A radiogenic unit comprising:

a casing;
an X-ray tube disposed in said casing and having an anode disposed at a first end thereof and a cathode disposed at a second end thereof;
a high-voltage supply circuit which is disposed in said casing, which supplies power to said X-ray tube in a single pole mode and which includes a heating transformer for said cathode;
an electrical and thermal frame at least partially surrounding said casing;
wherein
said casing includes (1) first and second parts imperviously sealed against fluids and X-rays and hermetically sealed to one another and (2) a conductive cylinder which is electrically connected to and has the same thermal conductivity as said anode and which is electrically connected to said frame,
said first part (1) is made of an electrically insulating material having a metalized exterior, (2) has an open cavity formed therein in which is housed said X-ray tube, and (3) houses said conductive cylinder, and wherein
said second part (1) is made of an electrically insulating material having a metalized exterior and (2) has open cavities formed therein in which are housed said high-voltage supply circuit.

5 more elements

Dependencies are inferred from the claim text.

Radiogenic unit

Life of this patent

Radiogenic unit

Life of this patent

Abstract

Claims18