X-ray tube housing

摘要

695,490. X-ray apparatus. NEWTON VICTOR, Ltd. Dec. 6, 1951 [Feb. 13, 1951], No. 3507/51. Class 98 (i). A housing for an X-ray tube comprises a generating tubular casing formed with a bulged portion extending longitudinally along one side of the casing and housing the auxiliary equipment associated with the tube, domed caps secured one to each end of the casing and having substantially radially directed bushings for high voltage supply leads, which domed caps are rotatable about the longitudinal axis of the housing to adjust the position of the supply leads, together with means for fixing the domed caps in the desired positions; Preferably the easing has a second longitudinal bulged portion opposite the first and housing a blower for directing air round the container, the bulged portions projecting substantially at right-angles to the direction of the X-ray beam. As shown in Fig. 1, a container 1 for an X-ray tube has oppositely placed longitudinal bulged portions 2, 3, and an X-ray transmitting window 4. Domed caps 5, 51 have bushings 6, 61 for supply cables 7, 71, and are rotatable on bearings 9, 91 at the ends of container 1. The caps may be fixed in position by clamping means such as set screws 10. Portion 2 accommodates auxiliary apparatus 11, which, if caps 5, 51 were not rotatable, would usually be housed in the ends of container 1. Portion 3 houses a blower 15 which blows air round the casing, e.g. between an inner and an outer casing. When portion 3 and motor 15 are omitted, a cover-plate may be placed over portion 2 to promote convection of air. In the casing shown in Fig. 5, an X-ray tube 17 having a rotating anode 19 driven by a motor 26 is supported in an inner casing 14. The rotatable domed caps 5, 51 for cables 7, 71 are filled with oil, the joints being sealed at 25. A motor 16 in a longitudinal bulge houses a blower 15, blowing air through the chamber containing motor 26 and out through an opening 22, and a blower 151 blows air through the chamber for the X-ray tube and out through an opening 221.