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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 263 - 268 (6page)
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초록· 키워드
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The 3He proportional chamber is widely used for neutron measurement owing to its high neutrondetection efficiency and simplicity for gamma-ray rejection. In general, the neutron and gamma-raysignals obtained from the 3He proportional chamber can be easily separated by the difference in thepulse heights. However, for a high gamma-ray field, the gamma-ray signal cannot be precisely eliminatedby the pulse height due to gamma-ray pulse pileup which causes the pulse height of gamma-ray pulse toincrease and making the pulses due to neutrons and gamma rays indistinguishable. In this study, animproved algorithm for n/g discrimination using a parameter, which is the ratio of the rise time to thepulse height, is proposed. The n/g discrimination performance of the algorithm is evaluated by applyingit to 252Cf neutron signal separation from various gamma-ray exposure rate levels ranging 0.1e5 R/h. Theperformance is compared to that of the conventional pulse-height analysis method in terms of thegamma elimination ratio. The suggested algorithm shows better performance than the conventional oneby 1.7% (at 0.1 R/h) to 70% (at 5 R/h) for gamma elimination.
목차
등록된 정보가 없습니다.
참고문헌 (10)
참고문헌 신청
T.W. Crane / 1991 / Baker, Neutron detectors, In Passive Nondestructive Assay of Nuclear Materials :386~391
G.F. Knoll / 2010 / Radiation Detection and Measurement / John Wiley & Sons :519~552
N.H. Johnson / 2001 / 3He Neutron Detector Performance in Mixed Neutron Gamma Environments
T. J. Langford / 2013 / Event identification in 3He proportional counters using rise time discrimination / Nucl. Instrum. Meth. Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip 717:51~57
C.L. Wang / 2017 / Improved neutron-gamma discrimination for a 3He neutron detector using subspace learning methods / Nucl. Instrum. Meth. Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip 853:27~35
G.F. Knoll / 2010 / Radiation Detection and Measurement / John Wiley & Sons :519~552
N.H. Johnson / 2001 / 3He Neutron Detector Performance in Mixed Neutron Gamma Environments
T. J. Langford / 2013 / Event identification in 3He proportional counters using rise time discrimination / Nucl. Instrum. Meth. Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip 717:51~57
C.L. Wang / 2017 / Improved neutron-gamma discrimination for a 3He neutron detector using subspace learning methods / Nucl. Instrum. Meth. Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip 853:27~35
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