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在γ-γ符合测量中康普顿散射所引起的符合

徐永昌 郑林生

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在γ-γ符合测量中康普顿散射所引起的符合

徐永昌, 郑林生

COINCIDENCES CAUSED BY COMPTON BACKSCATTERING OF GAMMA-RAYS

HSU YUNG-CHANG, CHENG LIN-SHENG
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  • 本文介绍一个具有0.15微秒分辨时间,测量由盖革计数管产生的脉冲的二重符合线路。并阐述在应用这符合线路观测Zn65 β+射线的湮滅符合时,观察到γ射线的康普顿散射所引起的符合。
    With slight improvement of ordinary Rossi circuit, a coincidence circuit of resolving time of 1.5×10-7 sec. has been built. Using this instrument, the annihilation radiations of small component β+-rays emitted by Zn65 have been investigated under various experimental conditions. The experiments demonstrate that the 0.21 Mev γ-rays found previously by some authors in Zn65 may be the backscattered γ-rays due to large component 1.12 Mev γ-rays of Zn65. Moreover, the coincidence rate of collimated annihilation radiations gives the percentage of β+-decay of Zn65 per total disintegration as (1.56 ±0.16)%.
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出版历程
  • 收稿日期:  1957-08-03
  • 刊出日期:  1958-01-05

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