Earticle

초록

영어

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%.

목차

ABSTRACT
 Introduction
 Materials and Methods
  1. Experiment
  2. Data analysis
 Results and Discussion
  1. Double-differential thick target gamma-ray yield
  2. Theoretical model analysis
 Conclusion
 Acknowledgment
 References

키워드

저자

• Shouhei Araki [ Department of Advanced Energy Engineering Science, Kyushu University, Fukuoka, Japan ] Corresponding author
• Kazuhiro Kondo [ Department of Advanced Energy Engineering Science, Kyushu University, Fukuoka, Japan ]
• Tadahiro Kin [ Department of Advanced Energy Engineering Science, Kyushu University, Fukuoka, Japan ]
• Yukinobu Watanabe [ Department of Advanced Energy Engineering Science, Kyushu University, Fukuoka, Japan ]
• Nobuhiro Shigyo [ Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka, Japan ]
• Kenshi Sagara [ Department of Physics, Kyushu University, Fukuoka, Japan ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  방사선방어학회지 [Journal of Radiation Protection and Research]

• 간기

  계간

• pISSN

  2508-1888

• 수록기간

  1976~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 559 DDC 629