CALCULATION OF THE ELECTRIC-FIELD IN GAAS PARTICLE DETECTORS

被引：62

作者：

KUBICKI, T ^{[1
]}

LUBELSMEYER, K ^{[1
]}

ORTMANNS, J ^{[1
]}

PANDOULAS, D ^{[1
]}

SYBEN, O ^{[1
]}

TOPOROWSKY, M ^{[1
]}

XIAO, WJ ^{[1
]}

机构：

[1] RHEIN WESTFAL TH AACHEN,INST PHYS 1,SOMMERFELDSTR 28,D-52056 AACHEN,GERMANY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1994年 / 345卷 / 03期

关键词：

D O I：

10.1016/0168-9002(94)90501-0

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have simulated the electric field in GaAs surface barrier particle detectors in order to explain the observation of reduced charge collection efficiency. Using the Poisson and continuity equations the electric potential can be calculated numerically in terms of the ionization of deep levels and the spatial variation of the quasi-Fermi-level in GaAs. The dependence of the electric field on different parameters (bias voltage, leakage current, material parameters) has been studied and predictions of the simulation have been experimentally verified.

引用

页码：468 / 473

页数：6

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