納冨昭弘・放射線

納冨昭弘のホームページ
Welcome to Web site of Akihiro Nohtomi !!

九州大学大学院 医学研究院 保健学部門 医用量子線科学分野 
放射線医療工学研究室

Medical Engineering Laboratory
Quantum Radiation Sciences, Department of Health Sciences,
Graduate School of Medical Sciences, Kyushu University

(旧) 放射線のいろいろ 近畿大学原子力研究所・納冨昭弘(Akihiro Nohtomi)のホームページ




・自己紹介 (self-introduction)

【納冨昭弘のprofile (profile of Akihiro Nohtomi)】



・研 究 紹 介 (research topics)

>医療応用に関連した、放射線検出・計測技術に関する研究
 Study on radiation detection and measurement related to medical applications

>粒子線治療に関する新しい線量評価技術に関する開発研究
 Development of advanced dosimetry techniques for the particle cancer therapy


【SQS(自己消滅ストリーマ)モードに基づく放射線検出器が開くさまざまな可能性】

【α線入射により発生する自己消滅ストリーマの放電イメージ】

【小型GM管システムで測定した航空機内の放射線レベル】

【生菌数モニターを用いた放射線生物効果評価システムの基礎的検討】

【イメージングプレートを用いた治療用陽子線深部線量分布の簡易測定手法の提案】

【位置検出型プラスチックシンチレーションファィバー(PSF)を用いた空間線量分布可視化システムの開発】

【I-125シード線源探査用フロアモニター機器の検討】

【対電離箱を用いた中性子吸収線量測定方法の適用範囲を高エネルギー領域へ広げる】

【コーン状アクリルコンバータを用いた、反跳陽子の位置分布計測に基づく新しい中性子スペクトロメータの開発】

【PSFを用いた放射性物質(放射性セシウム)分布測定システムの開発】
★修士1年・八尋絵莉子、応用物理学会放射線分科会ポスター賞(三位)受賞 [2012/8/7]

【反跳陽子比例計数管を用いた高速中性子弁別技術の研究】
★納冨昭弘他、第104回日本医学物理学会 大会長賞受賞 [2012/9/15]

【検出器の自己放射化にもとづく高感度中性子検出技術の研究】
★修士2年・八尋絵莉子、第105回日本医学物理学会 大会長賞受賞 [2013/4/15]

・学会ポスター発表など (poster presentations etc.)

PDF download "On-line evaluation of spatial dose-distribution by using a 15m-long plastic scintillation-fiber detector" 2008 IEEE Nuclear Science Symposium @Dresden 08Oct20

PDF download "Proposal of a novel concept on neutron-gamma mixed field dosimetry by using paired ionization chambers" 2010 PTCOG49 @Gunma University 10May20-22

PDF download 「放射線医療工学研究室紹介」 近畿大学 大学院総合理工学研究科 2009 年度 研究内容・研究成果 より抜粋

PDF download "On-line detection of neutrons by the self-activation of a CsI scintillator around an X-ray radiotherapy machine and an RI source." 2015 ICRR2015 @Kyoto 15May25-29
※Poster Presentation Award 受賞しました。




・納冨関連学術論文リスト (publication list)

[1] PDF download "Dead Zone Characteristics of SQS and GM Tubes" IEEE Trans. on Nucl. Sci., Vol.37, No.2(1990) pp. 107-111

[2] PDF download "A self-quenched streamer tube operated with Ne- and He-mixtures" NIM A299(1990) pp. 80-84

[3] PDF download "On the mechanism of self-quenching streamer formation" NIM A307(1991) pp. 581-583

[4] PDF download "Measurement of Dead Zone Characteristics of Gas Counter with Gamma-Ray" JNST Vol.29, No.3(1992) pp. 284-287

[5] PDF download "Significance of Ionization-Track Contribution to Self-Quenching Streamer (SQS) Formation Induced by Alpha-Rays" JNST Vol.29, No.5(1992) pp. 490-492

[6] PDF download "Dead Zone Characteristics of SQS and GM Modes in Kr-, Ar- and Ne-Mixtures" IEEE Trans. on Nucl. Sci., Vol.39, No.4(1992) pp. 719-723

[7] PDF download "Generation of SQS in Quenching Gas (CH4) of Proportional Counter and Related Problems" IEEE Trans. on Nucl. Sci., Vol.39, No.4(1992) pp. 724-727

[8] PDF download "Effect of Methylal Quenching Gas for Self-Quenching Streamer (SQS) Tube with Ar-isoC4H10-Methylal Mixture" JNST Vol.30, No.10(1993) pp. 974-980

[9] PDF download "Count-loss mechanism of self-quenching streamer (SQS) tubes" NIM A342(1994) pp. 538-543

[10] PDF download "Optical Observation of Self-Quenching Streamers by α- and β-Rays" IEEE Trans. on Nucl. Sci., Vol.41, No.4(1994) pp. 884-889

[11] PDF download "Modeling of SQS Propagation Induced by Alpha Ray in Gas Counters" IEEE Trans. on Nucl. Sci., Vol.42, No.4(1995) pp. 552-557

[12] PDF download "Comparison between large discharges of a gas counter in pure CH4 and in a CH4-Ar mixture" NIM A365(1995) pp. 582-584

[13] PDF download "A Computer-Simulation Model for Self-Quenching Streamer (SQS) Propagation Induced by Ionization Track of Alpha-Ray" JNST Vol.32, No.3(1995) pp. 165-169

[14] PDF download "Study on Operation Mechanism of Gas Counters in Self-Quenching Streamer Mode" dorctoral thesis (1995) Kyushu University  __A

[15] PDF download "Calculation of field distortion by a large-gained avalanche in a gas counter" NIM A397(1997) pp. 323-331

[16] PDF download "Transition Condition to the SQS Mode of Gas Counters for Heavy Charged Particles" IEEE Trans. on Nucl. Sci., Vol.44, No.3(1997) pp. 691-695

[17] PDF download "Response Function of a Stacked GSO(Ce) Spectrometer to Cosmic-rays" IEEE Trans. on Nucl. Sci., Vol.44, No.3(1997) pp. 484-488

[18] PDF download "Absolute Neutron Sensitivity of a GSO(Ce) Scintillation Detector" JNST Vol.34, No.1(1997) pp. 80-82

[19] PDF download "Application of Tail Subtraction Technique with Particle Identification to a Stacked Spectrometer for Intermediate Energy Protons" JNST Vol.34, No.7(1997) pp. 708-713

[20] PDF download "Light output response of GSO(Ce) and NaI(Tl) to protons up to 160 MeV" NIM A404(1998) pp. 327-333

[21] PDF download "Absolute efficiency of a stacked GSO(Ce) spectrometer for intermediate energy protons" NIM A411(1998) pp. 46-50

[22] PDF download 「筑波大学陽子線医学利用研究センターにおける放射線測定」放射線 Vol.25, No.3 (1999) pp. 3-15

[23] PDF download 「腹圧測定による呼吸同期陽子線照射の照準精度」放射線医学物理 Vol.19, No.1 (1999) pp. 74-80

[24] PDF download "Response characteristics of an imaging plate to clinical proton beams" NIM A424(1999) pp. 569-574

[25] PDF download "Deterioration of imaging plate by proton irradiation and an evidence of its recovery" NIM A441(2000) pp. 489-493

[26] PDF download "Multi-layer energy filter for realizing conformal irradiation in charged particle therapy" Medical Physics Vol.27, No.2(2000) pp. 368-373

[27] PDF download "Dosimetry of pulsed clincal proton beams by a small ionization chamber" Medical Physics Vol.28, No.7(2001) pp. 1431-1435

[28] PDF download "Three-dimensional conformal irradiation with a multilayer energy filter for proton therapy" Rev. of Sci. Ins., Vol.72, No.1(2001) pp. 1-3

[29] PDF download "Experimental Evaluation of Pencil Beam Algorithm by Measurements of Dose Distributions of Protons Traversing an L-Shaped Phantom" JJAP, Vol.40, No.1(2001) pp. 441-445

[30] PDF download "Range-Modulated Pencil Beam Algorithm for Proton Dose Calculations" JJAP, Vol.40, No.8(2001) pp. 5187-5193

[31] PDF download "Beam Commissioning of the New Proton Therapy System for University of Tsukuba" Proceedings of the 2001 Particle Accelerator Conference, Chicago(2001) pp.648-650

[32] PDF download "Compensating method of an imaging plate response to clinical proton beams" NIM A481(2002) pp. 669-674

[33] PDF download "Simplified Monte Carlo Dose Calculation for Therapeutic Proton Beams" JJAP, Vol.41, No.3(2002) pp. L294-L297

[34] PDF download "Measurement of depth-dose distribution of protons by an imaging plate" NIM A511(2003) pp. 382-387

[35] PDF download "The direct measurement using an imaging plate for coincidence of radiation centre and laser position in external radiation therapy" Phys. Med. Biol. 48(2003) pp. N59-N63

[36] PDF download "100Mo(p->, d)99Mo reaction at 21 MeV and direct reaction analysis of the low-lying continuum spectrum" Nuclear Physics A, Vol.714 (2003) pp.3-20

[37] PDF download 「呼吸同期による放射線治療計画用呼吸同期CT撮影」放射線医学物理 Vol.23, No.1 (2003) pp. 94-99

[38] PDF download 「モンテカルロ法による陽子線治療施設の運転のモデル化」放射線医学物理 Vol.23, No.2 (2003) pp. 147-156

[39] PDF download 「軟X線標準場の概要と高品質化に関する調査研究」産総研計量標準報告 Vol.2, No.4 (2004) pp. 627-632

[40] PDF download "Proton beam dosimetry intercomparison with new Japanese protocol" 医用標準線量 Vol.9, No.1 (2004) pp.37-42

[41] Link to Science Direct "Correlation between the respiratory waveform measured using a respiratory sensor and 3D tumor motion in gated radiotherapy" Int. Journal of Radiation Oncology*Biology*Physics, Vol.60, No.3 (2004) pp.951-958 __Q

[42] PDF download 「軟X線空気カーマ標準の高度化」産総研 TODAY Vol.9 (2005) pp. 30-31

[43] PDF download 「産総研における軟X線空気カーマ標準の現状」 医用標準線量 Vol.10, No.2 (2005) pp.7-11

[44] PDF download「ガス計数管内の放電の分光計測」放射線 Vol.32, No.2 (2006) pp. 152-164

[45] PDF download 「放射線治療における吸収線量測定法01の高度評価と問題点」 日本放射線技術学会雑誌 Vol.62, No.8 (2006) pp. 1037-1065

[46] PDF download 「産総研軟X線標準の現状と関連する諸問題」臨床技術講座, 日本放射線技術学会雑誌 Vol.62, No.8 (2006) pp. 1095-1101

[47] PDF download "A correction factor for effects of scattered X-rays at calibration of ionization chambers in low energy X-ray standard fields" JNST Vol.44, No.2(2007) pp. 109-113

[48] PDF download "Waveform simulation based on 3D dose distribution for acoustic wave generated by proton beam irradiation" Medical Physics Vol.34, No.9(2007) pp. 3642-3648

[49] PDF download "On-line evaluation of spatial dose-distribution by using a 15m-long plastic scintillation-fiber detector" manusccript version of presentation at 2008 IEEE NSS, Dresden (2008)

[50] PDF download "Key comparison BIPM.RI(I)-K2 of the air-kerma standards of the NMIJ and the BIPM in low-energy x-rays" Metrologia, Vol.45, Technical Supplement (2008) 06015

[51] PDF download "On-line Evaluation of Spatial Dose-distribution by using a 15m-long Plastic Scintillation-fiber" Proceedings of the 22nd Workshop on Radiation Detectors and Their Uses[February 5-7, 2008], (2009) pp.11-19

[52] PDF download 「15mシンチレーションファイバーを用いた線量分布のオンライン評価」近畿大学原子力研究所年報 Vol.46 (2009) pp. 1-7

[53] Link to Science Direct "An alternative method of neutron-gamma mixed-field dosimetry by using paired ionization chambers" NIM A614(2010) pp.159-161 __M

[54] Link to Science Direct "Photon W-value of dry air determined using a cryogenic radiometer combined with a multi-electrode ion chamber for soft X-rays" Radiation Physics and Chemistry 79 (2010) pp. 397-404 __Q

[55] Link to Oxford Journals "FEASIBILITY STUDY ON USING IMAGING PLATES TO ESTIMATE THERMAL NEUTRON FLUENCE IN NEUTRON-GAMMA MIXED FIELDS" Radiation Protection Dosimetry (2010) pp. 1-7 __S

[56] PDF download 「対電離箱を用いた中性子・γ線混合場における線量測定の新しい手法について」近畿大学原子力研究所年報 Vol.47 (2010) pp. 21-25

[57] Link to Science Direct "A method of neutron energy evaluation by using an imaging plate and cone-like acryl converters with a geometrical modulation concept" NIM A633 (2011) pp.36-45 __Q

[58] Link to J-Stage 「中性子のエネルギーを形で認識する」Jpn. J. Med. Phys. Vol.32, No.3 (2013) pp. 130-137 __Q

[59] PDF download "An observation of the pulse-shape property of a polyethylene-lined proportional counter for fast neutrons and gamma-rays" Proceedings of the 27th Workshop on Radiation Detectors and Their Uses[February 5-7, 2013], (2014) pp.51-62

[60] Link to CiNii "A method of neutron-energy evaluation based on the position distribution of recoil protons" Progress in Nuclear Science and Technology Vol.4 (2014) pp.653-656 __Q

[61] PDF download 「NaIシンチレータを用いた高感度中性子検出法の研究」放射線 Vol.40, No.1 (2014) pp. 55-58

[62] Link to J-stage 「高エネルギーX線治療におけるCR-39を用いた中性子測定システム」Jpn. J. Med. Phys. Vol.34, No.3 (2014) pp. 139-148 __Q

[63] Link to Oxford Journals "Distribution of residual long-lived radioactivity in the inner concrete walls of a compact medical cyclotron vault room" Ann. Nucl. Med. Vol.20 (2015) pp.84-90 __Q

[64] PDF download "Study on High Sensitive Neutron-detection by the Self-activation Method with a CsI(Tl) scinillator" Proceedings of the 29th Workshop on Radiation Detectors and Their Uses[February 3-5, 2015], (2015) pp.51-62

[65] Link to Oxford Journals "AN EVALUATION OF THE BASIC CHARACTERISTICS OF A PLASTIC SCINTILLATING FIBRE DETECTOR IN CT RADIATION FIELDS" Radiaiton Protection and Dosimetry Vol.8 (2015) pp.1-7 __Q

[66] Link to Springer Link "Applicability of self-activation of an NaI scintillator for measurement of photo-neutrons around a high-energy X-ray radiotherapy machine" Radiol. Phys. Technol Vol.8 (2015) pp.125-134 __Q

[67] PDF download "Study on High Sensitive Neutron-detection by the Self-activation method with a CsI(Tl) Scintillator" Proceedings of the 29th Workshop on Radiation Detectors and Their Uses[February 3-5, 2015], (2015) pp.51-62

[68] Link to Science Direct "Accuracy of neutron self-activation method with iodine-contaiing scitillators for quantifying 128I generation using decay-fitting technique" NIM A800 (2015) pp.6-11 __Q

[69] Link to Science Direct "An application of CCD read-out technique to neutron distribution measurement using the self-activation method with a CsI scintillator plate" NIM A832 (2016) pp.21-23 __Q

[70] JPS Conference Proceedings "High Sensitive Neutron-detection by using a Self-activation of Iodine-containing Scintillators for the Photo-neutron Monitoring around X-ray Radiotherapy Machines" JPS Conf. Proc. 11, 050002 (2016) __Q

[71] PDF download 「反跳陽子比例計数管によるオンラインn/γ分離測定へのベイズの定理の応用」放射線 Vol.43, No.1 (2017) pp. 35-40 __Q

[72] Link to Science Direct "Shape distortion of 128I ß−spectrum observed by a self-activated CsI(Tl) scintillator for high-sensitivity neutron measurements" NIM A871 (2017) pp.148-153 __Q

[73] Link to Science Direct "Improvement of neutron spectrum unfolding based on three-group approximation using CsI self-activation method for evaluation of neutron dose around medical linacs" Radiation Measurements 116 (2018) pp.40-45 __Q

[74] Link to Science Direct "Preliminary design study of a simple neutron energy spectrometer using a CsI self-activation method for daily QA of accelerator-based BNCT" JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY Vol.56 (2019) pp.70-77 __Q

[75] JPS Conference Proceedings "Neutron Distribution Measurement by the Self-activation of a CsI Plate with CCD Camera using a Decaying Self-activation Imaging Technique" JPS Conf. Proc. 24, 011041 (2019) __Q

[76] Link to Science Direct "A design study of appication of the CsI self-activation method to the neutron rem-counter technique" Radiation Measurements 128 (2019) 106181 __Q

[77] Link to Scientific Reports "Observation of morphological abnormalities in silkworm pupae after feeding 137CsCl-supplemented diet to evaluate the effects of low dose-rate exposure" SCIENTIFIC REPORTS 10 (2020) 16055 __Q

[78] Link to Scientific Reports "DEVELOPMENT OF A NEUTRON DOSIMETRY SYSTEM BASED ON DOUBLE SELF-ACTIVATED CsI DETECTORS FOR MEDICAL LINAC ENVIRONMENTS" Radiation Protection Dosimetry (2021), pp. 1–9 __Q

[79] Link to Scientific Reports "Observation of water luminescence for diagnostic 120-kV X-rays by using PMT and CCD camera" NIM A988 (2021) 164395 __Q

・特許申請 (patent application)

Link to patents "High-sensitivity neutron detection method using self-radioactivation of scintillator (WO 2014136990 A1)" Patent application-pending, PCT/JP2014/056812 [as of 2014/3/7]



・納冨関連出版リスト (list of published books)

[1] 「放射線計測学」医学物理教科書シリーズ 納冨昭弘編著 日本医学物理学会監修 (2015) 国際文献社

[2] 「放射線計測学」診療放射線基礎テキストシリーズ 納冨昭弘分担執筆 (2020) 共立出版




質問や意見は、ご遠慮なく nohtomi アットマ〜ク hs.med.kyushu-u.ac.jp まで

営業時間 平日:朝9時半頃〜夜7時頃  

居室は基礎研究B棟の3階です。内線は6722

福岡市東区馬出 3-1-1

九州大学 医学研究院 保健学部門 准教授 納冨昭弘

---End of Home Page.