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http://dx.doi.org/10.5369/JSST.2013.22.3.223

Estimation of Neutron Energy Spectrum of Cf-252 using Single Bonner Sphere with TLD-600 and TLD-700  

Kim, Sunghwan (Department of Radiological Scenece, Cheongju University)
Cheon, Jongkyu (Department of Radiology, Sorabol College)
Lee, Jae Jin (Korea Astronomy and Space Science Institute)
Nam, Uk-Won (Korea Astronomy and Space Science Institute)
Publication Information
Journal of Sensor Science and Technology / v.22, no.3, 2013 , pp. 223-226 More about this Journal
Abstract
We designed a single polyethylene bonner sphere with several thermo-luminescence dosimeters (TLD), for measurement of neutron energy spectrum. For the separation of the neutron dosage in the neutron-gamma mixed field, we used 21 ea TLD-600s and TLD-700s, respectively. Because, TLD-600 is sensitive to neutron and gamma rays, and, TLD-700 is sensitive only to gamma-rays, we could determine the each dose by neutron and gamma rays. The neutron response function of the bonner sphere with TLDs was calculated by MCNPX (ver. 2.5.0) Monte Carlo simulation in the energy range from $10^{-1}$ to 20 MeV. For the Cf-252 standard neutron source in KRISS, we could estimate the neutron energy spectrum by unfolding method using the response function.
Keywords
Bonner sphere; Neutron energy spectrum; Monte Carlo simulation; TLD;
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1 T. Kimura, H. Murase, I. Awaya, S. Takagi, T. Hirata, and K. Kawachi, "A commercial single bonner ball neutron energy spectrometer", Mitsubishi Heavy Industries Tech. Rev., Vol. 45, pp. 41-43, 2008.
2 P. Drake and J. Kierkegaard, "Use of a boron doped spherical phantom for the investigation of neutron directional properties: Comparison between experiment and MCNP simulation", Rad. Protect. Dosimetry, Vol. 81, pp. 271-276, 1999.   DOI   ScienceOn
3 J. L. Kim, J. I. Lee, I. Chang, A. S. Pradhan, S. I. Kim, and B. H. Kim, "TL response of pairs of 6LiF:Mg,Cu,Si/7LiF:Mg,Cu,Si and TLD-600/ TLD- 700 to 0.1-12 MeV neutrons", Rad. Meas., In Press, 2013.
4 F. Y. Hsu, M. C. Chiu, Y. L. Chang, C. C. Yu, and H. M. Liu, "Estimation of photon and neutron dose distributions in the THOR BNCT treatment room using dual TLD method", Rad. Meas., Vol. 43, pp. 1089-1094, 2008.   DOI   ScienceOn
5 M.-J. Kuo, F.-Y. Hsu, C.-H. Hsu, C.-H. Lo, et. al., "Dose estimation of the radiation workers in the SK cyclotron center using dual-TLD method", Rad. Meas., Vol. 45, pp. 691-693, 2010.   DOI   ScienceOn
6 J. S. Hendricks, G. W. McKinney, L. S. Waters, et. al., "MCNPX extensions version 2.5.0", Los Alamos National Laboratory report LA-UR-05-2675, 2005.
7 R. M. Howell, E. A. Burgett, B. Wiegel, and N. E. Hertel, "Calibration of a Bonner sphere extension (BSE) for high-energy neutron spectrometry", Rad. Meas., Vol. 45, pp. 1233-1237, 2010.   DOI   ScienceOn
8 B. Wiegel, S. Agosteo, R. Bedogni, M. Caresana, A. Esposito, G. Fehrenbacher, M. Ferrarini, et. al., "Intercomparison of radiation protection devices in a high-energy stray neutron field, Part II: Bonner sphere spectrometry", Rad. Meas., Vol. 44, pp. 660-672, 2009.   DOI   ScienceOn
9 J. H. Haney, T. E. Barnhart, and C. S. Zaidins, "Extraction of neutron spectral information from Bonner-sphere data", Nucl. Instr. Meth. Sec. A, Vol. 431, pp. 551-555, 1999.   DOI   ScienceOn
10 R. Bedogni, C. Domingo, A. Esposito, and F. Fernandez, "FRIUT: An operational tool for multisphere neutron spectrometry in workplaces", Nucl. Instr. Meth. Sec. A, Vol. 580, pp. 1301-1309, 2007.   DOI   ScienceOn
11 H. Toyokawa, A. Uritani, C. Mori, N. Takeda and K. Kudo, "A Spherical neutron counter with an extended energy response for dosimetry", Rad. Protect. Dosimetry, Vol. 70, pp. 365-370, 1997.   DOI   ScienceOn