ULTRAFAST SECONDARY-EMISSION X-RAY-IMAGING DETECTORS - A POSSIBLE APPLICATION TO TRD

被引：12

作者：

AKKERMAN, A ^{[1
]}

BRESKIN, A ^{[1
]}

CHECHIK, R ^{[1
]}

ELKIND, V ^{[1
]}

GIBREKHTERMAN, A ^{[1
]}

MAJEWSKI, S ^{[1
]}

机构：

[1] WEIZMANN INST SCI,IL-76100 REHOVOT,ISRAEL

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1992年 / 315卷 / 1-3期

关键词：

D O I：

10.1016/0168-9002(92)90685-W

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Fast high accuracy, X-ray imaging at high photon flux can be achieved when coupling thin solid convertors to gaseous electron multipliers, operating at low gas pressures. Secondary electrons emitted from the convertor foil are multiplied in several successive amplification elements. The obvious advantages of solid X-ray convertors, as compared to gaseous conversion, are the production of parallax-free images and the fast (subnanosecond) response. These X-ray detectors have many potential applications in basic and applied research. Of particular interest is the possibility of an efficient and ultrafast high resolution imaging of transition radiation (TR), with a reduced dE/dx background. We present experimental results on the operation of secondary emission X-ray (SEX) detectors, their detection efficiency, localization and time resolution. The experimental work is accompanied by mathematical modelling and computer simulation of transition radiation detectors (TRDs) based on CsI TR convertors.

引用

页码：82 / 91

页数：10

共 34 条

[1] SECONDARY-ELECTRON RADIATION FROM DIFFERENT TARGETS EXPOSED TO PHOTONS WITH ENERGY 0.1 TO 3 MEV [J].