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Observation of nuclear excitation of $$^{19}$$F by synchrotron radiation

放射光による$$^{19}$$Fの核励起の観測

原見 太幹; 依田 芳卓*; 藤原 守*

Harami, Taikan; Yoda, Yoshitaka*; Fujiwara, Mamoru*

$$^{19}$$Fの放射光による核励起を初めてSPring-8ビームラインで観測した。励起エネルギー110keVは今まで放射光で観測された中で最も高いエネルギーである。検出器の効率が低いこと,核の寿命が0.6nsと比較的短いことという難しい観測技術にもかかわらず、核励起をうまく検出できた。$$^{19}$$Fの核励起は薬剤中のフッ素の検出,同定,定量の手段として利用できる。また、素粒子物理の分野では、パリテイ非保存効果の研究にも利用できる。

The nuclear excitation of $$^{19}$$F was first observed by synchrotron radiation in the beamline of SPring-8. The excitation energy, 110 keV, is the highest energy that was observed by synchrotron radiation so far. In spite of the low detector efficiency and the relatively short lifetime of 0.6 ns, the identification of the nuclear excitation was successful. The $$^{19}$$F nuclear excitation will provide a specific tool for the detection, identification and quatification of fluorine-containing drugs. In the field of elementary particle physics, the parity non-consevation effect can now be studied in nuclear excitation processes in $$^{19}$$F.

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パーセンタイル:87.14

分野:Physics, Multidisciplinary

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