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本文提出了用Ge(Li)探测器测量正电子3γ湮没的方法,只测量511keV峰区计数,就能确定3γ湮没与2γ湮没的相对份额。我们称这种方法为“峰法”。对“峰法”和“峰-谷法”的结果进行了比较。A method for measuring the positron 3γ annihilation, with Ge(Li) detector is introduced, in which the relative yields of 3γ annihilation is measured by the counts of the 511 keV peak only. We call it the "peak method", and compare it with the "peak-valley method."
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