On the energy response function of a CdTe Medipix2 Hexa detector

Author(s):  
Thomas Koenig ◽  
Andreas Zwerger ◽  
Marcus Zuber ◽  
Patrick Schuenke ◽  
Simeon Nill ◽  
...  
2013 ◽  
Vol 772 ◽  
pp. 571-578
Author(s):  
Rahadi Wirawan ◽  
M. Djamal ◽  
A. Waris ◽  
Gunawan Handayani ◽  
Hong Joo Kim

Response function is a fundamental parameter for all detectors in order to analyze the energy distribution of gamma ray which undergoes scattering interaction with the material. The response functions of a 3 in. x 3 in. NaI(Tl) collimated detector for non axis detector-source geometry has been calculated using a Monte Carlo approach from GEANT4 simulation code with 0.662 MeV of mono-energetic of photon gamma ray. Collimated Pb with 4 cm thickness and 2 cm of holes diameter were employed for shielding. The source was assumed as an isotropic point source and it is placed at various positions to the detector axis. The comparison between the measured energy response functions and the simulated energy response functions after normalization were also performed in order to validate the modeling results.


1990 ◽  
Vol 16 (1-12) ◽  
pp. 209-212 ◽  
Author(s):  
M. Repoux ◽  
E. Darque-Ceretti ◽  
M. Casamassima ◽  
J. P. Contour

Author(s):  
Xiang Li ◽  
Yasushi Makihara ◽  
Chi Xu ◽  
Daigo Muramatsu ◽  
Yasushi Yagi ◽  
...  

2010 ◽  
Vol 2 (3) ◽  
pp. 479 ◽  
Author(s):  
M. S. Rahman ◽  
G. Cho

A high purity germanium detector (HPGe) of crystal size of diameter 4.91 cm and length of 3.6 cm  was modeled in accordance with the Pop Top cryostat configuration (model no. GEM10P4). The energy response function was calculated in the air using Monte Carlo simulation with mono-energy g-ray photon up to 400 keV. The distance between the source and the front surface or end cap to detector was 20 cm and the source was assumed as an isotopic point source. The aluminum absorbing layers of thickness 0.127 cm was also taken into consideration in the simulation model. The input number of particles was 107 for each mono-energetic g-ray photon. The simulated energy response functions were verified with the measured energy response functions obtained using calibration sources in order to prove the accuracy of the modeling. The comparison between the measured energy response functions and the simulated energy response functions after normalization were also performed.  Keywords: HPGe; Gamma-ray spectrum; Monte Carlo. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI: 10.3329/jsr.v2i3.4668                 J. Sci. Res. 2 (3), 479-483 (2010)  


2014 ◽  
Vol 9 (08) ◽  
pp. P08002-P08002 ◽  
Author(s):  
E Jr Schioppa ◽  
D Banerjee ◽  
J Visser ◽  
T Klaver ◽  
E Koffeman ◽  
...  

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