SECONDARY-ELECTRON EMISSION GASEOUS DETECTORS FOR FAST X-RAY-IMAGING

被引：8

作者：

BRESKIN, A ^{[1
]}

CHECHIK, R ^{[1
]}

GIBREKHTERMAN, A ^{[1
]}

FRUMKIN, I ^{[1
]}

LEVINSON, L ^{[1
]}

NOTEA, A ^{[1
]}

WEINGARTEN, B ^{[1
]}

机构：

[1] TECHNION ISRAEL INST TECHNOL,DEPT QUAL ASSURANCE & RELIABIL,IL-32000 HAIFA,ISRAEL

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1994年 / 353卷 / 1-3期

关键词：

D O I：

10.1016/0168-9002(94)91662-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new class of X-ray imaging gaseous detectors was developed, based on photon conversion in a thin film and the detection of the emitted secondary electrons with a low-pressure avalanche wire chamber. Their main features are parallax-free imaging with a submillimeter spatial resolution over a broad range of X-ray energies, a nanosecond response and a counting rate capability above 1 MHz/mm(2). The imaging characteristics of a large area secondary electron emission (SEE) detector equipped with CsI, Ag and Ta photoconvertors, in the photon energy range of 6-60 keV are summarized. In localization capability this detector can successfully compete with commercial image intensifier systems and medical film-screen combinations.

引用

页码：302 / 306

页数：5

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