Avalanche photo diode with local negative feedback sensitive to UV, blue and green light

被引：24

作者：

Antich, PP

Tsyganov, EN

Malakhov, NA

Sadygov, ZY

机构：

[1] UNIV TEXAS,SW MED CTR,DALLAS,TX

[2] JOINT NUCL RES INST,DUBNA,RUSSIA

[3] IST NAZL FIS NUCL,PADUA,ITALY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1997年 / 389卷 / 03期

关键词：

D O I：

10.1016/S0168-9002(97)00314-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new type of avalanche photo diode with negative feedback based on a Metal-Resistor-Semiconductor (MRS) structure and sensitive to UV, blue and green light was tested using a Cs-137 beta-source With electrons impinging a front surface of the detector, and also with Sr-90 beta-source illuminating a 1 mm diameter scintillating fiber. MRS detectors of this type are built on low resistivity n-silicon. The sensitivity of the detector is calibrated using the ionization loss of Cs-137 beta-electrons. We conclude that these detectors have characteristics well suited to medical imaging applications, in particular wavelength dependence, quantum efficiency and sensitivity, and intrinsic multiplication.

引用

页码：491 / 498

页数：8

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