公开(公告)号：US3659097A

公开(公告)日：1972-04-25

申请号：US3659097D

申请日：1971-02-16

Applicant: NAT RES DEV

Inventor： BASSETT RICHARD ,  MULVEY THOMAS

IPC: H01J29/66 ,  H01J37/02 ,  H01J37/141 ,  H01J37/252 ,  H01J37/26

CPC classification number: H01J37/02 ,  H01J29/66 ,  H01J37/141 ,  H01J37/252 ,  H01J2237/002 ,  H01J2237/142

Abstract: Apparatus having a generator of a beam of charged particles and magnetic focusing means in which a beam of charged particles is brought to a focus between the source and the focusing means so that radiation from a target placed at the focus can be received by a radiation detector within a substantial solid angle, bounded by said magnetic focusing means and the beam of charged particles. Preferably the focusing means is an electrically conducting coil of substantially flat or shallow conical form having a conical half-angle of not less than 75*.

Abstract translation: 具有带电粒子束的发生器和磁聚焦装置的装置，其中带电粒子束被带到源和聚焦装置之间的焦点，使得放置在焦点处的来自靶的辐射可以被辐射检测器 在大致立体角内，由所述磁性聚焦装置和带电粒子束限定。

公开(公告)号：US3707628A

公开(公告)日：1972-12-26

申请号：US3707628D

申请日：1971-03-22

Applicant: NAT RES DEV

Inventor： BASSETT RICHARD ,  MULVEY THOMAS

IPC: H01J37/141 ,  H01J37/26 ,  G01N23/22

CPC classification number: H01J37/141

Abstract: A magnetic lens, for focusing a beam of charged particles, includes a coil at least part of which, at an end thereof, tapers conically with a half-angle between 20* and 85*. The coil may comprise a plurality of conductors laid concurrently, and cooling means may be provided in contact with the inner surface. Desirably, the coil is shrouded, at least in part, with material of high magnetic permeability. Radiation such as X-rays, from a target in focus beyond the tapering end of the coil, may be detected over a large solid angle.

Abstract translation: 用于聚焦带电粒子束的磁性透镜包括线圈，其至少一部分在其端部以20度和85度之间的半角锥形锥形地成锥形。 线圈可以包括同时放置的多个导体，并且冷却装置可以设置成与内表面接触。 理想地，线圈至少部分地用高导磁率的材料覆盖。 可以在大的立体角上检测来自聚焦超过线圈的锥形端的目标的X射线的辐射。