X-ray generating apparatus

An x-ray generating apparatus comprising:

• a rotatable anode assembly having an anode target;
• a cathode assembly spaced from said anode assembly and having an electron source for emitting a beam of electrons that strikes said anode target to generate x-rays
• a unitary vacuum enclosure having a cylindrically shaped body with respective openings in a top and a side walls, a portion of said side wall being bent inwardly towards said electron source to create a space between said top wall and said portion of said side wall and to form a shroud over a substantial portion of said anode target so as to restrict off focus radiation generated thereof by secondary electrons;
• and
• a high voltage insulator disposed within said space to vacuum seal said unitary vacuum enclosure, said high voltage insulator being connected to said cathode assembly.

An x-ray generating apparatus comprising:

• a unitary vacuum enclosure comprising a substantially cylindrical side wall and a top wall;
• an anode assembly with a rotating anode target placed within said unitary cylindrical vacuum enclosure;
• a cathode assembly spaced from said anode assembly and placed within said unitary vacuum enclosure, said cathode assembly comprising a disk protecting an aperture in said top wall and being substantially parallel to said anode target
• a plurality of fins disposed over an outer perimeter of said cylindrical side wall;
• and
• a shroud being attached to said plurality of fins and extending over said outer perimeter of said cylindrical side wall, and partially over said top wall,
• wherein said unitary vacuum enclosure, said disk and said shroud being a shield for the x-rays and secondary electrons generated within said unitary vacuum enclosure.