1125. 固体放射線検出素子におけるγ線応答の入射角度依存性

山西 弘城; 山口 作太郎; 山口 貴行; 植木 紘太郎

doi:10.3327/taesj2002.1.15

山西弘城, 山口作太郎, 山口貴行, 植木紘太郎

著者情報

ジャーナルフリー

2002 年 1 巻 1 号 p. 15-19

DOI https://doi.org/10.3327/taesj2002.1.15

詳細

発行日: 2002/03/25 受付日: - J-STAGE公開日: 2009/03/16 受理日: 2001/06/06 早期公開日: - 改訂日: -
訂正情報
訂正日: 2009/03/16 訂正理由: - 訂正箇所: 論文受付日訂正内容: 訂正後 : 20010606

訂正日: 2009/03/16 訂正理由: - 訂正箇所: 論文タイトル訂正内容: 訂正前 : 1125. 固体放射線検出素子におけるγ線応答の入射角度依存性
訂正後 : 1125. 固体放射線検出素子におけるγ線応答の入射角度依存性

訂正日: 2009/03/16 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : The shape and size of a NaI (Tl) scintillator that should maximize response variation with γ-ray incident angle was estimated by analytical model calculation. It proved that, even for gamma rays of energy exceeding 1 MeV, a slab detector measuring 50cm×50cm×5cm thick should present a ratio of at least 4 between maximum and minimum responses against incidence at different angles. For a sample case of 60keV gamma rays, estimation of the incident angle dependence by means of Monte Carlo simulation agreed well with experiment using a CZT detector. The counts from photoelectric peak varied with incident angle roughly along a sine curve. The foregoing finding served as basis for proposing a practical direction finder for γ-ray source operating on the principle of determining the source direction from variations in count with incident angle.
Right : The shape and size of a NaI (Tl) scintillator that should maximize response variation with γ-ray incident angle was estimated by analytical model calculation. It proved that, even for gamma rays of energy exceeding 1MeV, a slab detector measuring 50cm×50cm×5cm thick should present a ratio of at least 4 between maximum and minimum responses against incidence at different angles. For a sample case of 60keV gamma rays, estimation of the incident angle dependence by means of Monte Carlo simulation agreed well with experiment using a CZT detector. The counts from photoelectric peak varied with incident angle roughly along a sine curve. The foregoing finding served as basis for proposing a practical direction finder for γ-ray source operating on the principle of determining the source direction from variations in count with incident angle.

訂正日: 2009/03/16 訂正理由: - 訂正箇所: 引用文献情報訂正内容: 訂正前 : 1) 山西弘城,山口作太郎,大林治夫,他,"検出部の形状効果を利用したガンマ線画像装置の開発",原子力学会「1998秋の大会」予稿集,第I分冊,B68, (1998).
2) 宮尾英彦,間野正,池田諭志,塩月正雄,菅谷敏克,"放射線映像化装置の開発",原子力誌,30 [11], 971 (1988).

訂正後 : 1) 山西弘城,山口作太郎,大林治夫,他,“検出部の形状効果を利用したガンマ線画像装置の開発”,原子力学会「1998秋の大会」予稿集,第I分冊,B68, (1998).
2) 宮尾英彦,間野正,池田諭志,塩月正雄,菅谷敏克,“放射線映像化装置の開発”,原子力誌,30 [11], 971 (1988).

訂正日: 2009/03/16 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

訂正日: 2009/03/16 訂正理由: - 訂正箇所: 論文受付日訂正内容: 訂正前 : 20010606

訂正日: 2009/03/16 訂正理由: - 訂正箇所: 引用文献情報訂正内容: Wrong : 3) R. Gould, J.E. Tarpinian, E.S. Kenney, "An automated system for gamma radiation field mapping", Nucl. Instrum. Methods Phys. Res., A299, 538 (1990).
4) R.H. Redus, V. Nagarkar, L.J. Cirignano, W. McGann, M.R. Squillante, "A nuclear survey instrument with imaging capability", IEEE Trans. Nucl. Sci., 39 [4], 948 (1992).
5) V.G. Baryshevsky, A.A. Khrutchinsky, V.I. Moroz, M.D. Dezhurko, "Gamma-ray spectroscopic system for remote detection and monitoring of fissile materials", IEEE Trans. Nucl. Sci., 41 [4], 971 (1994).
6) S.V. Guru, Z. He, D.K. Wehe, G.F. Knoll, "A portable gamma camera for radiation monitoring", IEEE Trans. Nucl. Sci., 42 [4], 940 [1995].
7) G. Ventura, H.M. Horstman, A. Brighenti, C. Cavani, M. Camprini, P. Cazzola, G. Giovannini, C. Labanti, J.M. Poulsen, "A balloon-borne instrumentation for cosmic gamma-ray burst detection and measurement", Nucl. Instrum. Methods Phys. Res., 226, 524 (1984) .
8) K.P. Ziock, C.J. Hailey, T.B. Gosnell, J.H. Lupton, F.A. Harrison, "A gamma-ray imager for arms control", IEEE Trans. Nucl. Sci., 39 [4], 1046 (1992).
9) J.M. Perez, P. Olmos, "The CIEMAT-PSD gamma camera prototype results of the tests in a controlled installation", Nucl. Instrum. Methods Phys. Res., A348, 536 (1994).
10) J.B. Martin, G.F. Knoll, D.K. Wehe, N. Dogan, V. Jordanov, N. Perick, M. Singh, "A ring Compton scatter camera for imaging medium energy gamma rays", IEEE Trans. Nucl. Sci., 40 [4], 972 (1993).
11) H.J.P. Kuykens, S.A. Audet, "A3×3 silicon drift chamber array for application in an electronic collimator", Nucl. Instrum. Methods Phys. Res., A273, 570 (1988).
12) G.W. Phillips, "Gamma-ray imaging with Compton cameras", Nucl. Instrum. Methods Phys. Res., B99, 674 (1995).
13) D. Doria, M. Singh, "Comparison of reconstruction algorithms for electronically collimated gamma camera", IEEE Trans. Nucl. Sci., NS-29 [1], 447 (1982).
14) R.B. Piercey, A.G. Weisenberger, J.E. McKisson, C. Girit, "Preliminary characteristics of a germanium-based, Compton-scatter telescope", IEEE Trans. Nucl. Sci., 36 [1], 887 (1989).
15) N. Dogan, D.K. Wehe, G.F. Knoll, "Multiple Compton scatering gamma ray imaging camera", Nucl. Instrum. Methods Phys. Res., A299, 501 (1990).
16) J.F. Briesmeister, (Ed.), MCNPTM-A General Monte Carlo N-particle Transport Code Version 4B, LA-12625-M, (1997).

Right : 3) R. Gould, J.E. Tarpinian, E.S. Kenney, "An automated system for gamma radiation field mapping", Nucl. Instrum. Methods Phys. Res., A299, 538 (1990).
4) R.H. Redus, V. Nagarkar, L.J. Cirignano, W. McGann, M.R. Squillante, "A nuclear survey instrument with imaging capability", IEEE Trans. Nucl. Sci., 39 [4], 948 (1992).
5) V.G. Baryshevsky, A.A. Khrutchinsky, V.I. Moroz, M.D. Dezhurko, "Gamma-ray spectroscopic system for remote detection and monitoring of fissile materials", IEEE Trans. Nucl. Sci., 41 [4], 971 (1994).
6) S.V. Guru, Z. He, D.K. Wehe, G.F. Knoll, "A portable gamma camera for radiation monitoring", IEEE Trans. Nucl. Sci., 42 [4], 940 [1995].
7) G. Ventura, H.M. Horstman, A. Brighenti, C. Cavani, M. Camprini, P. Cazzola, G. Giovannini, C. Labanti, J.M. Poulsen, "A balloon-borne instrumentation for cosmic gamma-ray burst detection and measurement", Nucl. Instrum. Methods Phys. Res., 226, 524 (1984) .
8) K.P. Ziock, C.J. Hailey, T.B. Gosnell, J.H. Lupton, F.A. Harrison, "A gamma-ray imager for arms control", IEEE Trans. Nucl. Sci., 39 [4], 1046 (1992).
9) J.M. Perez, P. Olmos, "The CIEMAT-PSD gamma camera prototype results of the tests in a controlled installation", Nucl. Instrum. Methods Phys. Res., A348, 536 (1994).
10) J.B. Martin, G.F. Knoll, D.K. Wehe, N. Dogan, V. Jordanov, N. Perick, M. Singh, "A ring Compton scatter camera for imaging medium energy gamma rays", IEEE Trans. Nucl. Sci., 40 [4], 972 (1993).
11) H.J.P. Kuykens, S.A. Audet, "A3×3 silicon drift chamber array for application in an electronic collimator", Nucl. Instrum. Methods Phys. Res., A273, 570 (1988).
12) G.W. Phillips, "Gamma-ray imaging with Compton cameras", Nucl. Instrum. Methods Phys. Res., B99, 674 (1995).
13) D. Doria, M. Singh, "Comparison of reconstruction algorithms for electronically collimated gamma camera", IEEE Trans. Nucl. Sci., NS-29 [1], 447 (1982).
14) R.B. Piercey, A.G. Weisenberger, J.E. McKisson, C. Girit, "Preliminary characteristics of a germanium-based, Compton-scatter telescope", IEEE Trans. Nucl. Sci., 36 [1], 887 (1989).
15) N. Dogan, D.K. Wehe, G.F. Knoll, "Multiple Compton scattering gamma ray imaging camera", Nucl. Instrum. Methods Phys. Res., A299, 501 (1990).
16) J.F. Briesmeister, (Ed.), MCNPTM-A General Monte Carlo N-particle Transport Code Version 4B, LA-12625-M, (1997).

訂正日: 2009/03/16 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

抄録

The shape and size of a NaI (Tl) scintillator that should maximize response variation with γ-ray incident angle was estimated by analytical model calculation. It proved that, even for gamma rays of energy exceeding 1MeV, a slab detector measuring 50cm×50cm×5cm thick should present a ratio of at least 4 between maximum and minimum responses against incidence at different angles. For a sample case of 60keV gamma rays, estimation of the incident angle dependence by means of Monte Carlo simulation agreed well with experiment using a CZT detector. The counts from photoelectric peak varied with incident angle roughly along a sine curve. The foregoing finding served as basis for proposing a practical direction finder for γ-ray source operating on the principle of determining the source direction from variations in count with incident angle.

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