Measurement of Gamma-ray Yield from Thick Carbon Target Irradiated by 5 and 9 MeV Deuterons

Araki, Shouhei; Kondo, Kazuhiro; Kin, Tadahiro; Watanabe, Yukinobu; Shigyo, Nobuhiro; Sagara, Kenshi

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자료유형: 학술저널

저자정보: Araki, Shouhei (Department of Advanced Energy Engineering Science, Kyushu University) Kondo, Kazuhiro (Department of Advanced Energy Engineering Science, Kyushu University) Kin, Tadahiro (Department of Advanced Energy Engineering Science, Kyushu University) Watanabe, Yukinobu (Department of Advanced Energy Engineering Science, Kyushu University) Shigyo, Nobuhiro (Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University) Sagara, Kenshi (Department of Physics, Kyushu University)

저널정보: 대한방사선방어학회 방사선방어학회지 방사선방어학회지 제42권 제1호

발행연도: 2017.1

수록면: 16 - 20 (5page)

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Background: The design of deuteron accelerator neutron source facilities requires reliable yield estimation of gamma-rays as well as neutrons from deuteron-induced reactions. We have so foar measured systematically double-differential thick target neutron yields (DDTTNYs) for carbon, aluminum, titanium, copper, niobium, and SUS304 targets. In the neutron data analysis, the events of gamma-rays taken simultaneously were treated as backgrounds. In the present work, we have re-analyzed the experimental data for a thick carbon target with particular attention to gamma-ray events. Materials and Methods: Double-differential thick target gamma-ray yields from carbon irradiated by 5 and 9 MeV deuterons were measured using an NE213 liquid organic scintillator at the Kyushu University Tandem accelerator Laboratory. The gamma-ray energy spectra were obtained by an unfolding method using FORIST code. The response functions of the NE213 detector were calculated by EGS5 incorporated in PHITS code. Results and Discussion: The measured gamma-ray spectra show some pronounced peaks corresponding to gamma-ray transitions between discrete levels in residual nuclei, and the measured angular distributions are almost isotropic for both the incident energies. Conclusion: PHITS calculations using INCL, GEM, and EBITEM models reproduce the spectral shapes and the angular distributions generally well, although they underestimate the absolute gamma-ray yields by about 20%.

#Deuteron #Gamma-ray #NE213 #Unfolding #PHITS

참고문헌 (17)

참고문헌 신청

Nagai Y / 2013 / Generation of radioisotopes with accelerator neutrons by deuterons / J. Phys. Soc. Japan 82:064201

Agosteoa S / 2002 / Characterization of an accelerator-based neutron source for BNCT versus beam energy / Nucl. Inst. Meth. A 476:106~112

Moeslang A / 2006 / The IFMIF test facility design / Fusion, Eng, Des 81:863~871

N. Shigyo / 2011 / Measurement of Deuteron Induced Thick Target Neutron Yields at 9 MeV / Journal of the Korean Physical Society 59(23):1725~1728

Tajiri Y / 2014 / Measurement of double differential neutron yields from thick carbon target irradiated by 5-MeV and 9-MeV deuterons / Prog. Nucl. Sci. Tech 4:582~586

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