Improvements relating to x-ray apparatus involving a charged particle linear accelerator

摘要

709,451. X-ray apparatus. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Aug. 25, 1952 [Oct. 11, 1951], No. 23728/51. Class 98(1) [Also in Groups XXVIII and XL(a)] A linear particle accelerator 1 projecting X-rays downwardly is mounted vertically at the end of a horizontal arm 3 which projects from a vertical pillar 4; the pillar 4 is pivoted at 5 and 5SP1/SP so that the whole assembly can be tilted about the horizontal axis, for adjustment of 'the angle at which the X-rays are projected with respect to the vertical. A counterweight 36 is provided within the pillar. Mounted within the arm and pillar structure 3, 4 are a high frequency pulse generator 9 coupled with the accelerator, and one stage 19 of a two stage pump system for maintaining the vacuum within the accelerator. The stage 19 comprises a diffusion pump so mounted as to maintain a vertical position. Specification 700,719, [Group XL(a)], is referred to.