公开(公告)号：US20140233707A1

公开(公告)日：2014-08-21

申请号：US13768383

申请日：2013-02-15

Applicant: AMERICAN SCIENCE AND ENGINEERING, INC.

Inventor： Lee Grodzins ,  Jeffrey R. Schubert ,  Omar Al-Kofahi ,  Peter J. Rothschild

IPC: G21K1/04

CPC classification number: G21K1/046

Abstract: A versatile beam scanner for generating a far-field scanned pencil beam, and, alternatively, a far-field pencil beam. An angle selector limits the angular extent of an inner fan beam emitted by a source of penetrating radiation. The source and angle selector may be translated, along a direction parallel to a central axis of a multi-aperture unit, in such a manner as to generate a scanned far-field pencil beam, when rings of apertures are interposed between the source and an inspected target, or, alternatively, a far-field fan beam, when no ring of apertures is interposed.

Abstract translation: 一种用于产生远场扫描笔型光束的通用光束扫描器，或者替代地，远场笔型光束。 角度选择器限制由穿透辐射源发射的内扇形光束的角度范围。 源极和角度选择器可以沿着平行于多孔单元的中心轴线的方向平移，以便产生扫描的远场笔形光束，当孔的环插入在源和源 检查目标，或者替代地，当没有孔的环被插入时，远场扇形束。