Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2008, Vol. 19 ›› Issue (1): 45 doi: 10.1016/S1001-8042(08)60020-2

• ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION • Previous Articles     Next Articles

A compact gamma-ray detector using wavelength-shifting fibers coupled to YAP scintillation crystal

ZHU Jie1,2 MA Hongguang1 MA Wenyan 1 ZENG Hui2,* WANG Zhaomin2 XU Zizhong2   

  1. 1 Department of Nuclear Engineering, The Second Artillery Engineering Institute, Xi’an 710025, China
    2 Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
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ZHU Jie MA Hongguang MA Wenyan ZENG Hui WANG Zhaomin XU Zizhong. A compact gamma-ray detector using wavelength-shifting fibers coupled to YAP scintillation crystal.Nuclear Science and Techniques, 2008, 19(1): 45     doi: 10.1016/S1001-8042(08)60020-2
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Abstract: The performance of a compact position sensitive gamma-ray detector based on wavelength-shifting fibers coupled to YAlO3:Ce scintillation crystal was evaluated using a Monte-Carlo simulation method. The simulation model has been setup using the GEANT4 codes. Compared with the gamma-ray detector based on the YAlO3:Ce scintillation crystal coupled to Hamamastu R2486 position sensitive photomultiplier tube, the results indicate that the gamma-ray detector based on wavelength-shifting fibers readout has good position linearity, good spatial resolution and larger effective field of view. The image and point spread function of measured point were presented. The spatial resolution response as a function of position was obtained. The factors influencing spatial resolution and position linearity were discussed.

Key words: Monte-Carlo simulation, WSF, Spatial resolution