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Water radiolysis with heavy ions; Measurement of $$^{.}$$OH yield near the Bragg peak

Maeyama, Takuya*; Yamashita, Shinichi; Katsumura, Yosuke; Baldacchino, G.*; Taguchi, Mitsumasa; Kimura, Atsushi; Murakami, Takeshi*

Aqueous solution of Coumarin-3-carboxylic acid (CCA) has been applied to yield measurement of $$^{.}$$OH in water. Production yield of a fluorescent probe, 7OH-CCA, which is a stable product produced after scavenging reaction for $$^{.}$$OH by CCA, was determined by using HPLC connected to a fluorometer. Taking sensitiveness of fluorometry as an advantage, $$^{.}$$OH yields near the Bragg peaks, which are known very small compared to those in plateau LET region, have been measured. Contribution of fragmentations, which are known to be significant near the Bragg peaks of high-energy heavy ions, is also being discussed.

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Japanese

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Meeting title

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第51回放射線化学討論会

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2008/10

Location (city)

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つくば

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日本

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no keyword

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Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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放射線医学総合研究所; 東京大学; CEA

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- Accesses

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