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Thermal neutron capture cross section of palladium-107

$$^{107}$$Pdの熱中性子捕獲断面積

中村 詔司; 原田 秀郎 ; Raman, S.*; Koehler, P. E.*

Nakamura, Shoji; Harada, Hideo; Raman, S.*; Koehler, P. E.*

$$^{107}$$Pd試料の熱中性子捕獲により放出される即発$$gamma$$線を解析した。基底状態に遷移する$$gamma$$線強度の和を取ることにより、熱中性子捕獲断面積の下限値を求め、9.16$$pm$$0.27bを得た。今回得られた結果は、共鳴データから計算された評価値より5倍大きい。

Prompt $$gamma$$ rays induced by thermal neutron capture on an enriched $$^{107}$$Pd sample were analyzed to obtain the thermal neutron capture cross section for this nuclide. Intensities of prompt $$gamma$$-ray transitions feeding the ground state were summed to determine a lower limit for the thermal neutron capture cross section of 9.16$$pm$$0.27 b. There have been no previously reported values for this cross section. Our measured value is five times larger than evaluations of this cross section, which are based on resonance parameter data.

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パーセンタイル:28.37

分野:Nuclear Science & Technology

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