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 ›› 2007, Vol. 18 ›› Issue (5): 302 doi: 10.1016/S1001-8042(07)60066-9

• ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION • Previous Articles     Next Articles

Development of a compact high resolution gamma-ray detector for E-CT applications

ZHU Jie1 MA Hongguang1 MA Wenyan1 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
PDF ShareIt Export Citation
ZHU Jie MA Hongguang MA Wenyan ZENG Hui WANG Zhaomin XU Zizhong. Development of a compact high resolution gamma-ray detector for E-CT applications.Nuclear Science and Techniques, 2007, 18(5): 302     doi: 10.1016/S1001-8042(07)60066-9
Citations
Altmetrics

Abstract: A compact gamma-ray detector with good spatial resolution for emission computed tomography (E-CT) applications has been developed. The detector is composed of NaI(Tl) scintillation pixels array and Hamamastu R2486-05 PSPMT. Having a pixel size of 2 mm × 2 mm and an overall dimension of 48.2 mm × 48.2mm × 5 mm, it has 484 pixels in a 22×22 matrix. An average spatial resolution of 2.5mm (FWHM) was achieved. The slope of posi-tion linearity is constant within 10% in a range of 40mm. After corrections, the average value of differential non-linearity and absolute non-linearity were 0.16mm and 0.535mm respectively, and a 17% at FWHM of total energy resolution for 241Am was obtained.

Key words: E-CT, Pixels array, PSPMT, Position linearity, Spatial resolution