A long-time chopper for direct measurement of 4He(12C,16O)γ reaction cross section
A long-time chopper for direct measurement of 4He(12C,16O)γ reaction cross section
复制标题
一种直接测量4He(12C,16O)γ反应截面的长时间斩波器
DOI：
10.1016/j.nuclphysa.2005.05.074
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
N. Ikeda
中科院分区：
文献类型：
--
作者：
H. Oba;K. Sagara;T. Shimizu;M. Oshiro;T. Maeda;N. Ikeda
九州大学串列实验室(KUTL)正在通过探测{sup 16}O反冲来直接测量{sup 4}He({sup 12}C，{sup 16}O){Gamma}反应截面。研制了一种长时间斩波(LTC)，以抑制具有时间(能量)扩散的{sup 16}O反冲的背景。在E{subcm}=2.4 MeV的{sup 4}He({sup 12}C，{sup 16}O){Gamma}截面的测量中，LTC使本底降低了约三个数量级。
Direct measurement of the {sup 4}He({sup 12}C,{sup 16}O){gamma} reaction cross section by detecting {sup 16}O recoils is in progress at Kyushu University tandem laboratory (KUTL). A long-time chopper (LTC) has been developed to reject backgrounds from {sup 16}O recoils which have time (energy) spread. In the measurement of {sup 4}He({sup 12}C,{sup 16}O){gamma} cross section at E{sub cm} = 2.4 MeV, LTC was found to reduce the backgrounds by about three orders of magnitude.