Investigation of the current-voltage characteristics, the electric field distribution and the charge collection efficiency in x-ray sensors based on chromium compensated gallium arsenide

2014 ◽  
Author(s):  
A. Tyazhev ◽  
V. Novikov ◽  
O. Tolbanov ◽  
A. Zarubin ◽  
M. Fiederle ◽  
...  
Keyword(s):  
Gallium Arsenide ◽  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Charge Collection Efficiency ◽  
X Ray ◽  
Current Voltage ◽  
Current Voltage Characteristics

Effect of Heat Treatment on Electrical Properties and Charge Collection Efficiency of X-Ray Sensors Based on Chrome-Compensated Gallium Arsenide

2016 ◽  
Vol 59 (2) ◽  
pp. 295-300
Author(s):  
A. N. Zarubin ◽  
I. I. Kolesnikova ◽  
A. D. Lozinskaya ◽  
V. A. Novikov ◽  
M. S. Skakunov ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Gallium Arsenide ◽  
Electrical Properties ◽  
Collection Efficiency ◽  
Charge Collection ◽  
Charge Collection Efficiency ◽  
X Ray

Studies of Charge Collection in GaAs Radiation Detectors

1993 ◽  
Vol 302 ◽  
Author(s):  
K Berwick ◽  
M R Brozel ◽  
C M Butiar ◽  
M Cowperthwaite ◽  
Y Hou
Keyword(s):  
Electric Field ◽  
Collection Efficiency ◽  
Radiation Detectors ◽  
Alpha Particles ◽  
Uniform Electric Field ◽  
Charge Collection ◽  
Applied Bias ◽  
Particle Detectors ◽  
Charge Collection Efficiency ◽  
Lec Gaas

ABSTRACTThe behaviour of the charge collection efficiency of particle detectors fabricated from Semi-Insulating (SI) Liquid Encapsulated Czochralski (LEC) GaAs as a function of applied bias is investigated for alpha particles and it is shown that it cannot be explained by simple models that assume a uniform electric field across the detector. To investigate this the electric field within the SI GaAs has been studied. We have attempted to correlate the measured charge collection efficiency with the observed field distributions. Some correlation is found but other effects may also be present.

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