14Mev中子的^(64)Zn(n,2n)^(63)Zn反应截面测量

THER MEASUREMENT OF THE ^(64)Zn(n,2n)^(63)Zn REACTION CROSS SECTION AROUNDAN ENERGYOB

本文用活化法分别以^(56)Fe(n,P)^(56)Mn和^(63)Cu(n,2n)^(62)Cu反应截面为标准,测量了14.61Mev中子的^(64)Zn(n,2n)^(63)Zn反应截面,其值分别为190.1±5.3mb和196.3±7.7mb。又以^(27)Al(n,P)^(27)Mg反应截面为标准,测量了14.13Mev、14.61Mcv和14.85Mev三个能点的^(64)Zn(n,2n)^(63)Zn反应截面,其值分别为116.0±8.7mb、189.4±14.2mb和197.2±14.8mb。活化生成核发射的γ射线用高纯锗(HPGe)γ谱议进行测量。

The cross section for the ^(64)Zn(n,2n)^(63)Zn reaction was measured at 14.61Mev using the activation technique relative to well-known cross sections for the reference reactions ^(56)Fe(n,P)^(56)Mn and ^(63)Cu(n,2n)^(62)Cu with cross sections found to be 190.1+5.3 mb and 196.3+7.7 mb respectively. The Same measurements were also made at 14.13 Mev, 14.61 Mev and 14.85 Mev, where the cross sections of ^(27)Al(n,P)^(27)Mg rewere used for reference, and the the corresponding results 116.0+8.7 mb, 189.4+14.2 mb and 197.2+14.8 mb were thus given.The activated samples were counted for the r-activity using a HPGc detector.