Neutron spectroscopy with a large neutron time‐of‐flight detector array (LaNSA) (invited)
Neutron spectroscopy with a large neutron time‐of‐flight detector array (LaNSA) (invited)
复制标题
大型中子飞行时间探测器阵列（LaNSA）的中子谱（特邀）
DOI：
10.1063/1.1143573
复制
发表时间：
1992
期刊：
影响因子：
--
通讯作者：
M. Nelson
中科院分区：
文献类型：
--
作者：
M. Cable;S. Hatchett;M. Nelson
最近在新星激光聚变设施完成的大型中子闪烁器阵列（LaNSA）允许测量ICF内爆的低产量中子能谱。这些谱可以用来确定一些基本的内爆特性，如燃料面密度和离子温度。将介绍如何用单粒子探测器阵列测量中子能谱的细节，以及显示这些谱用于确定内爆参数的实验数据。特别强调的是，将放在测量的次级DT中子产生的最初纯氘燃料。还将讨论从二次中子能谱确定相互作用的triton能谱及其在燃料推进器混合研究中的应用。
The recent completion of the Large Neutron Scintillator Array (LaNSA) at the Nova Laser Fusion Facility has allowed low yield neutron energy spectra to be measured for ICF implosions. These spectra can be used to determine some fundamental implosion characteristics such as fuel areal density and ion temperature. Details of how neutron energy spectra are measured with an array of single particle detectors will be presented, as well as experimental data showing the application of these spectra to the determination of implosion parameters. Particular emphasis will be placed on measurements of secondary DT neutrons produced from initially pure deuterium fuel. Determination of the interacting triton energy spectrum from secondary neutron energy spectroscopy and its application to studies of fuel‐pusher mixing will also be discussed.