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Chinese Physics C> 2006, Vol. 30> Issue(7) : 704-708 

A (CF2)n-PIN Sandwich Detecting Array with Statistics Enhancement in Low Pulsed γ Flux Measurement

  •  Department of Engineering Physics, Tsinghua University, Beijing 100084, China2 Northwest Institute of Nuclear Technology, Xi'an 710024, China3 Institute of Modern Physics, Fudan University, Shanghai 200433, China

  • A (CF2)n-PIN sandwiched detecting array with statistics enhancement in low pulsed γ flux measurements has been constructed. The array uses 2mm thick (CF2)n overlaid with Si-PIN detector of φ60mm×1000μm, then coupled to PA101 amplifier with gain 100. The array exhibits four distinct properties: (1) very high detecting efficiency: The γ detecting sensitivity of the array can reach 10－11C.cm2, which is 4 orders of magnitude higher than that of a signal PIN detector of φ20mm×250μm; (2) remarkable statistics enhancement: The statistics enhancement of the array has been studied with M-C simulation,which displays highly enhanced statistics in very low pulsed γ flux measurement; (3) huge dynamic range: A single array can cover seven orders of magnitude's measurement range of γ flux; and (4) flat response in given γ energy range. The array has found its applications in experimental measurements.
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    [1] . Fewell T R. SC-DR-72 0118. 19722. Ebert P, Lauzon A F. Sci. Instr., 1967, 38(12): 1747-17503. OUYANG Xiao-Ping, ZHANG Zhong-Bing, WANG Wei.HEP NP, 2006, 30(3): 228(in Chinese)(欧阳晓平，张忠兵，王伟.高能物理与核物理，2006, 30(3):228)4. OUYANG Xiao-Ping, LI Zhen-Fu, ZHANG Guo-Guang etal. Acta Phys. Sin., 2002, 51(7): 1502-1505(in Chinese)(欧阳晓平，李真富，张国光等.物理学报，2002, 51(7): 1502-1505)5. Kuckuck R W. UCRL-51011. 19716. OUYANG Xiao-Ping. Studies on the Detection of PulsedFission Neutrons from Low-Intensity Radiation Sources,2002, Shanghai: Fudan University(in Chinese)(欧阳晓平.低强度脉冲裂变中子探测技术研究.上海:复旦大学博士论文，2002)

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OUYANG Xiao-Ping, LI Zhen-Fu, HUO Yu-Kun, WANG Yi and ZHANG Zhong-Bing. A (CF2)n-PIN Sandwich Detecting Array with Statistics Enhancement in Low Pulsed γ Flux Measurement[J]. Chinese Physics C, 2006, 30(7): 704-708.
OUYANG Xiao-Ping, LI Zhen-Fu, HUO Yu-Kun, WANG Yi and ZHANG Zhong-Bing. A (CF2)n-PIN Sandwich Detecting Array with Statistics Enhancement in Low Pulsed γ Flux Measurement[J]. Chinese Physics C, 2006, 30(7): 704-708. shu
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Received: 2005-10-20
Revised: 2006-01-17
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A (CF2)n-PIN Sandwich Detecting Array with Statistics Enhancement in Low Pulsed γ Flux Measurement

    Corresponding author: ZHANG Zhong-Bing,
  • Department of Engineering Physics, Tsinghua University, Beijing 100084, China2 Northwest Institute of Nuclear Technology, Xi'an 710024, China3 Institute of Modern Physics, Fudan University, Shanghai 200433, China
  • Received Date: 2005-10-20
  • Accepted Date: 2006-01-17
  • Available Online: 2006-07-05

Abstract: A (CF2)n-PIN sandwiched detecting array with statistics enhancement in low pulsed γ flux measurements has been constructed. The array uses 2mm thick (CF2)n overlaid with Si-PIN detector of φ60mm×1000μm, then coupled to PA101 amplifier with gain 100. The array exhibits four distinct properties: (1) very high detecting efficiency: The γ detecting sensitivity of the array can reach 10－11C.cm2, which is 4 orders of magnitude higher than that of a signal PIN detector of φ20mm×250μm; (2) remarkable statistics enhancement: The statistics enhancement of the array has been studied with M-C simulation,which displays highly enhanced statistics in very low pulsed γ flux measurement; (3) huge dynamic range: A single array can cover seven orders of magnitude's measurement range of γ flux; and (4) flat response in given γ energy range. The array has found its applications in experimental measurements.

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