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A new method for high-energy pulsed Gamma measurement within intense background x-rays |
Tan Xin-Jian(谭新建)a)b), Ouyang Xiao-Ping(欧阳晓平) a)b)†, Wang Qun-Shu(王群书) a)b), Song Zhao-Hui(宋朝晖)b), Kang Ke-Jun(康克军) a), and Xia Liang-Bin(夏良斌)b) |
a Department of Engineering Physics, Tsinghua University, Key Laboratory of Particle & Radiation Imaging (Tsinghua University), Ministry of Education, Beijing 100084, China; b Northwest Institute of Nuclear Technology, Xi'an 710024, China |
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Abstract The accelerator-generating 6.13 MeV pulsed Gamma by 19F(p, $\alpha\gamma$)160 reaction usually synchronizes with an intense bremsstrahlung x-ray which has a maximum energy of 1~MeV. This paper proposes a new method, named the scattering and absorbing method, to diagnose the 6.13 MeV Gamma. This method includes two parts: the detector and a scatterer placed in front of the detector. The detector converts the Gamma to electrons and then collects the electrons by a scintillator. In order to restrain the interference of the low-energy background, the scintillator collects the electrons at a small angle. The scintillator is wrapped with electro-absorbing material to absorb the low-energy electrons generated by background x-rays. The theoretical sensitivity ratio of 6.13 MeV Gamma to 1 MeV x-rays is greater than 150. The scatterer is a pretreatment tool to scatter some background x-rays away from the radial beam before they enter the detector. By varying the length, the scatterer can reduce the background x-rays to an acceptable level for the detector.
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Received: 03 May 2009
Revised: 09 June 2009
Accepted manuscript online:
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PACS:
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07.85.Fv
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(X- and γ-ray sources, mirrors, gratings, and detectors)
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23.20.Lv
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(γ-transitions and level energies)
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25.40.Lw
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(Radiative capture)
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27.20.+n
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(6 ≤ A ≤ 19)
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29.40.Mc
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(Scintillation detectors)
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Cite this article:
Tan Xin-Jian(谭新建), Ouyang Xiao-Ping(欧阳晓平), Wang Qun-Shu(王群书), Song Zhao-Hui(宋朝晖), Kang Ke-Jun(康克军), and Xia Liang-Bin(夏良斌) A new method for high-energy pulsed Gamma measurement within intense background x-rays 2010 Chin. Phys. B 19 010703
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[1] |
Xia L B, Ouyang X P, Wang Q S, Kang K J and Tan X J 2008 Chin. Phys. B 17 4466
|
[2] |
John E B, Joseph S L, Peter B L, Joseph M M, James W T and Carlton S Y 1983 LA-UR-83-1864
|
[3] |
Yang H L and Qiu A C 2004 Nuclear Techniques 27 188 (in Chinese)
|
[4] |
Berggren R R, Caldwell S E, Faulkner J R, Lerche R A, Mack J M, Moy K J, Oertel J A and Young C S 2001 Rev. Sci. Instrum. 72 873
|
[5] |
Ye Y Y, Chen H D, He X J, Teng J T, Zhang C F, Feng J N, Chen X D and Deng F S 1996 Atomic Energy Science and Technology 30 127 (in Chinese)
|
[6] |
Glenn F K 1999 Radiation Detection and Measurement (New York: John Wiley & Sons, Inc.) p51
|
[7] |
Xie Y G and Chen C 2003 Particle Detector and Data Acquisition (Beijing: Science) p23 (in Chinese)
|
[8] |
Agostinelli S 2003 Nucl. Instrum. Methods A 506 250
|
[9] |
Guo Q, Xu R K and Lee Z H 2004 Acta Phys. Sin. 53 1334 (in Chinese)
|
[10] |
Song Z H, Ruan X C, Dai Q S and Wang K L 2005 High Power Laser and Particle Beams 17 453 (in Chinese)
|
[11] |
Briesmeister J F 2003 MCNP-A General Monte Carlo N-particle Transport Code, Version 5 (Alamos: National Laboratory)
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