公开(公告)号：US3816748A

公开(公告)日：1974-06-11

申请号：US24841772

申请日：1972-04-28

Applicant: ALPHA IND INC

Inventor： HARRISON S

IPC: G21K1/08 ,  H01J37/317 ,  H01J49/28 ,  H05H5/04 ,  H01J39/34

CPC classification number: H05H5/04 ,  G21K1/08 ,  H01J37/3171 ,  H01J49/288

Abstract: In the ion accelerator disclosed herein, the desired ion species is selected by means of a filter or selector of the crossed-field type which is self-focusing on at least one axis and which permits ion energy to be easily varied while maintaining focus and desired species selection. In the selector, the electric field provided has a strength which, on the centerline of the beam, is proportional to the square-root of the ion energy and has a gradient, in the direction of the field, which is proportional to the ion energy.

Abstract translation: 在本文公开的离子加速剂中，期望的离子种类通过交叉场类型的过滤器或选择器来选择，该过滤器或选择器在至少一个轴上自聚焦，并且允许离子能量容易地变化，同时保持聚焦和期望的 物种选择。 在选择器中，所提供的电场具有在光束的中心线上与离子能量的平方根成比例的强度，并且在场的方向上具有与离子能量成比例的梯度 。