Study on high temperature radiolysis of water relevant to water chemistry

• Project/Area Number: 23246168
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: The University of Tokyo
• Principal Investigator: KATSUMURA Yosuke 東京大学, 工学(系)研究科(研究院), 教授 (70111466)
• Co-Investigator(Kenkyū-buntansha): KUDO Hisaaki 東京大学, 大学院工学系研究科, 教授 (00334318) ; MUROYA Yusa 大阪大学, 産業科学研究所, 准教授 (40334320) ; LIN Mingzhang 日本原子力研究開発機構, 原子力科学研究所, 任期付研究員 (50465994) ; YAMASHITA Shinichi 東京大学, 大学院工学系研究科, 助教 (20511489)
• Project Period (FY): 2011-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥28,860,000 (Direct Cost: ¥22,200,000、Indirect Cost: ¥6,660,000); Fiscal Year 2014: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000); Fiscal Year 2013: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2012: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2011: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
• Keywords: 高温水化学 / パルスラジオリシス / 超臨界水 / 10B(n,α)7Li反応 / モンテカルロシミュレーション / 水分解生成物 / G値 / 水化学 / 水の放射線分解 / モンテカルロ計算 / 水和電子 / OHラジカル / スパー反応 / 高温水・超臨界水

Outline of Final Research Achievements

The coolant water in nuclear reactor is exposed to intense radiations such as fast neutrons and gamma-rays at high temperatures and decomposed, which is one of the important factors to control the chemical conditions of the coolant water. Therefore, understanding of water radiolysis at elevated temperatures is inevitably important not only technologically but also scientifically. In the present research project, we have picked up three subjects: (1) ultrafast pulse radiolysis, (2) Inhibition of H2 evolution via H2 addition in high LET radiolysis of water, and (3) Monte Carlo simulation of water radiolysis by 10B(n,α)7Li reaction.

Research Products

• [Journal Article] Sequential radiation chemical reactions in aqueous bromide soluteons: pulse radiolysis experiment and spur model simulation (2015)
  • Author(s): S. Yamashita, K. Iwamatsu, Y. Maehashi, M. Taguchi, K. Hata, Y. Muroya and Y. Katsumura
  • Journal Title: RSC Adv. Volume: 5 Pages: 25877-25886
  • Peer Reviewed
• [Journal Article] Simulation of the inhibition of water α-radiolysis via H2 addition (2014)
  • Author(s): P. Lertnaisat, Y. Katsumura, S. Mukai, R. Umehara, Y. Shimizu and M. Suzuki
  • Journal Title: J. Nucl. Sci. and Technol. Volume: 51 Issue: 9 Pages: 1087-1095
  • DOI: 10.1080/00223131.2014.907548
  • Peer Reviewed
• [Journal Article] Time-dependent yield of the hydrated electron in subcritical and supercritical water studied by ultrafast pulse radiolysis and Monte-Carlo simulation. (2012)
  • Author(s): Y. Muroya, S. Sanguanmith, J. Meesungnoen, M.Z. Lin, Y. Yan, Y. Katsumura, J.-P. Jay-Gerin
  • Journal Title: Phys. Chem. Chem. Phys. Volume: 14 Issue: 41 Pages: 14325-14333
  • DOI: 10.1039/c2cp42260c
  • Peer Reviewed
• [Journal Article] On the spur lifetime and its temperature dependence in the low linear energy transfer radiolysis of water. (2012)
  • Author(s): S. Sanguanmith, J. Meesungnoen, Y. Muroya, M. Lin, Y. Katsumura, J.-P. Jay-Gerin
  • Journal Title: Phys. Chem. Chem. Phys. Volume: 14 Issue: 48 Pages: 16731-16736
  • DOI: 10.1039/c2cp42826a
  • Peer Reviewed
• [Journal Article] Mechanism of radiation-induced reactions in aqueous solution of coumarin-3-carboxylic acid: Effects of concentration, gas and additive on fluorescent product yield (2012)
  • Author(s): Yamashita, S., Baldacchino, G., Maeyama, T., Taguchi, M., Muroya, Y., Lin, M. Z., Kimura, A., Murakami, T., Katsumura, Y.
  • Journal Title: Free Radical Research Volume: 46 Pages: 861-871
  • Peer Reviewed
• [Journal Article] Temperature Dependent of Br-, Br2-. and Br3- Absorption Spectra in Aqueous Solutions (2011)
  • Author(s): M. Lin, P. Archirel, N. Thi Van-Oanh, Y. Muroya, H. Fu, Y. Yan, R. Nagaishi, Y. Kumagai, Y. Katsumura, M. Mostafavi
  • Journal Title: J. Phys. Chem. A Volume: 115 Issue: 17 Pages: 4241-4247
  • DOI: 10.1021/jp1123103
  • Peer Reviewed
• [Journal Article] Temperature dependence of the Fricke dosimeter and spur expansion time in the low-LET high-temperature radiolysis of water up to 350°C: A Monte-Carlo simulation study (2011)
  • Author(s): S. Sanguanmith, Y. Muroya, T. Tippayamontri, J. Meesungnoen, M. Lin, Y. Katsumura and J-P. Jay-Gerin
  • Journal Title: Phys. Chem. Chem. Phys. Volume: 13 Issue: 22 Pages: 10690-10698
  • DOI: 10.1039/c1cp20293f
  • Peer Reviewed
• [Journal Article] Low-liner energy transfer radiolysis of liquid water at elevated temperatures up to 350°C: Monte-Carlo simulations (2011)
  • Author(s): S. Sanguanmith, Y. Muroya, J. Meesungnoen, M. Lin, Y. Katsumura, L. M. Kohan, D. A. Guzonus, C. R. Stuart, J.-P. Jay-Gerin
  • Journal Title: Chem. Phys. Lett. Volume: 508 Issue: 4-6 Pages: 224-230
  • DOI: 10.1016/j.cplett.2011.04.059
  • Peer Reviewed
• [Journal Article] Time-Dependent Radiolytic Yield of OH Radical Studied by Picosecond Pulse Radiolysis (2011)
  • Author(s): A. K. El Omar, U. Schmidhammer, P. Jeunesse, J-P. Larbre, M. Lin, Y. Muroya, Y. Katsumura, P. Pernot and M. Mostafavi
  • Journal Title: J. Phys. Chem. A Volume: 115 Issue: 44 Pages: 12212-12216
  • DOI: 10.1021/jp208075v
  • Peer Reviewed
• [Presentation] Effects of Dissolved Species on Radiolysis of Diluted Seawater (2014)
  • Author(s): Kuniki Hata, Satoshi Hanawa, Shigeki Kasahara, Takafumi Motooka, Takashi Tsukada,Yusa Muroya, Shinichi Yamashita, Yosuke Katsumura
  • Organizer: NPC2014
  • Place of Presentation: ロイヤル札幌ホテル、北海道
  • Year and Date: 2014-10-26 – 2014-10-31
• [Presentation] Sequential Radiation Chemical Reactions in Aqueous (2014)
  • Author(s): Kazuhiro IWAMATSU, Shinichi YAMASHITA, Yuki MAEHASHI, Mitsumasa TAGUCHI, Yusa MUROYA, Kuniki HATA, and Yosuke KATSUMURA
  • Organizer: 5th Asia Pacific Symposium on Radiation Chemistry
  • Place of Presentation: 東京大学、東京
  • Year and Date: 2014-09-08 – 2014-09-11
• [Presentation] The Important Role of H + H2O → OH + H2 Reaction in (2014)
  • Author(s): Phantira Lertnaisat,Yosuke Katsumura,Satoru Mukai,Ryuji Umehara,Yuichi Shimizu,Masaru Suzuki
  • Organizer: 5th Asia Pacific Symposium on Radiation Chemistry
  • Place of Presentation: 東京大学、東京
  • Year and Date: 2014-09-08 – 2014-09-11
• [Presentation] 高温高圧水中における水和電子の時間挙動と反応性 (2014)
  • Author(s): 鳩本大祐、室屋 裕佐、勝村庸介、山下真一、古澤孝弘
  • Organizer: 第51回アイソトープ・放射線研究発表会
  • Place of Presentation: 東京大学、東京
  • Year and Date: 2014-07-07 – 2014-07-09
• [Presentation] 沸騰水の放射線分解 (2014)
  • Author(s): 勝村庸介、楊爽、山下真一、松浦千尋、田口光正
  • Organizer: 第51回アイソトープ・放射線研究発表会
  • Place of Presentation: 東京大学、東京
  • Year and Date: 2014-07-07 – 2014-07-09
• [Presentation] 超臨界水の放射線分解反応機構 (2014)
  • Author(s): 室屋裕佐、鳩本大祐、勝村庸介、林 銘章、山下真一、Jintana Meesungnoen、Jean-Paul Jay-Gerin、古澤孝弘
  • Organizer: 第51回アイソトープ・放射線研究発表会
  • Place of Presentation: 東京大学、東京
  • Year and Date: 2014-07-07 – 2014-07-09
• [Presentation] モンテカルロ計算による10B（n,α）7Li反応による水分解初期収量評価II (2014)
  • Author(s): ラートナイサット パンティラー、勝村庸介、メースングノエンジンタナ、ジェイジェラン ジャンポール、向井 悟、梅原隆二、志水雄一、鈴木 将
  • Organizer: 第51回アイソトープ・放射線研究発表会
  • Place of Presentation: 東京大学、東京
  • Year and Date: 2014-07-07 – 2014-07-09
• [Presentation] Current Understanding of Water Radiolysis at Elevated Temperatures (2013)
  • Author(s): Yosuke Katsumura, Phantira Lertnaisat
  • Organizer: Symposium on Water Chemistry and Corrosion of NuclearPower Plants in Asia,2013
  • Place of Presentation: Hotel Windsor,Taiching,Taiwan
  • Year and Date: 2013-10-14 – 2013-10-17
• [Presentation] Radiolysis of Water at High Temperature and Pressure Conditions (2013)
  • Author(s): Yusa Muroya, Yosuke Katsumura, Mingzhang Kin, Jean-Paul Jay-Gerin, Takahiro Kozawa
  • Organizer: Symposium on Water Chemistry and Corrosion of NuclearPower Plants in Asia,2013
  • Place of Presentation: Hotel Windsor,Taiching,Taiwan
  • Year and Date: 2013-10-14 – 2013-10-17
• [Presentation] Pulse Radiolysis Studies on High Temperature Water:the Behavious of Hydroxyl Radical (2013)
  • Author(s): Mingzhang Lin, Yosuke Katsumura, Yusa Muroya, Mehran Mostafavi, Jean-Paul Jay-Gerin
  • Organizer: Symposium on Water Chemistry and Corrosion of NuclearPower Plants in Asia,2013
  • Place of Presentation: Hotel Windsor,Taiching,Taiwan
  • Year and Date: 2013-10-14 – 2013-10-17
• [Presentation] Inter-comparison of Primary G-values, and reaction sets and rates constant of water radiolysis for computer simulation (2013)
  • Author(s): Phantira Lertnaisat,Yosuke Katsumura,Satoru Mukai,Ryuji Umehara,Yuichi Shimizu,Masaru Suzuki
  • Organizer: 第56回放射線化学討論会
  • Place of Presentation: 広島大学、広島
  • Year and Date: 2013-09-08 – 2013-09-11
• [Presentation] これからの水化学に期待する (2012)
  • Author(s): 勝村庸介
  • Organizer: 第2回軽水炉燃料・材料・水化学3部会合同夏期セミナー
  • Place of Presentation: 島根・しんじ湖温泉
• [Presentation] Computer Modeling of Inhibition of α-radiolysis of water by H2 addition (2012)
  • Author(s): Phantira Lertnasiat、
  • Organizer: Nuclear Plant Chemistry Conference 2012
  • Place of Presentation: France・Paris
• [Presentation] 高温水の放射線化学反応初期過程：水素の発生機構 (2012)
  • Author(s): 室屋裕佐、勝村庸介、林銘章、Sunuchakan Sanguanmith、Jintana Meesungnoen、Jean-Paul Jay-Gerin、古澤孝弘
  • Organizer: 第55回放射線化学討論会
  • Place of Presentation: 宮城・モンタナリゾート岩沼
• [Presentation] 超臨界ピコ秒パルスラジオリシスの改良 (2012)
  • Author(s): 室屋裕佐、勝村庸介、林銘章、Jean-Paul Jay-Gerin、古澤孝弘
  • Organizer: 第55回放射線化学討論会
  • Place of Presentation: 宮城・モンタナリゾート岩沼
• [Presentation] Radiation Chemistry of Water – Past, Present and Future (2012)
  • Author(s): Y. Katsumura
  • Organizer: The 4th Asia Pacific Symposium on Radiation Chemistry
  • Place of Presentation: Huangshan, China
  • Invited
• [Presentation] Radiolysis of water at high temperature and high pressure- electron thermalization distance and spur diffusion reaction (2012)
  • Author(s): Yusa MUROYA, Mingzhang LIN, Sunuchakan SANGUANMITH,Jintana MEESUNGNOEN, Jean-Paul JAY-GERIN, Yosuke KATSUMURA
  • Organizer: ワークショップ「原子力における放射線効果」
  • Place of Presentation: 東京大学、東京都
• [Presentation] Recent Progresses in the Studies on Water Radiolysis (2012)
  • Author(s): Mingzhang LIN, Yosuke KATSUMURA, Yusa MUROYA, Jintana MEESUNGNOEN, Mehran MOSTAFAVI, Jean-Paul JAY-GERIN
  • Organizer: ワークショップ「原子力における放射線効果」
  • Place of Presentation: 東京大学、東京都
• [Presentation] Inhibition of radiolysis of water by H2 addition-II (2012)
  • Author(s): Phantira Lertnaisat, Yosuke Katsumura, Satoru Mukai, Ryuji Umehara, Yuichi Shimizu, Masaru Suzuki
  • Organizer: ワークショップ「原子力における放射線効果」
  • Place of Presentation: 東京大学、東京都
• [Presentation] Direct measurement of hydroxyl radical by picosecond pulse radiolysis (2011)
  • Author(s): M. Lin, Y. Muroya, Y. Katsumura, A. K. El Omar, M. Mostafavi, J. Meesungneon,J.-P. jay-Gerin
  • Organizer: 第54回放射線化学討論会
  • Place of Presentation: 大阪大学、大阪市
• [Presentation] 高温水中における水和電子の拘束時間挙動：熱化距離およびスパー反応 (2011)
  • Author(s): 室屋裕佐、林銘章、Sunnuchakan Sanguanmith、Jintana Meesungnoen、Jean-Paul Jay-Gerin、勝村庸介
  • Organizer: 第54回放射線化学討論会
  • Place of Presentation: 大阪大学、大阪市
• [Presentation] Computer modeling of inhibition of α-radiolysis of water by H2 addition (2011)
  • Author(s): P. Lertnaisat, Y. Tamoto, Y. Katsumura, S. Mukai, R. Umehara,Y. Shimizu, M. Suzuki
  • Organizer: 第54回放射線化学討論会
  • Place of Presentation: 大阪大学、大阪市
• [Presentation] モンテカルロ法による高温高圧水の放射線分解反応シミュレーション (2011)
  • Author(s): 室屋裕佐、林銘章、Sunnuchakan Sanguanmith、Jintana Meesungnoen、Jean-Paul Jay-Gerin、勝村庸介
  • Organizer: 第54回放射線化学討論会
  • Place of Presentation: 大阪大学、大阪市