用于惯性约束聚变面密度测量的向下散射中子成像探测器。

Down-scattered neutron imaging detector for areal density measurement of inertial confinement fusion.

作者信息

Arikawa Y, Yamanoi K, Nakazato T, Estacio E S, Shimizu T, Sarukura N, Nakai M, Hosoda H, Norimatsu T, Hironaka Y, Azechi H, Izumi N, Murata T, Fujino S, Yoshida H, Kamada K, Usuki Y, Suyama T, Yoshikawa A, Satoh N, Kan H

机构信息

Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan.

出版信息

Rev Sci Instrum. 2010 Oct;81(10):10D303. doi: 10.1063/1.3475535.

DOI:10.1063/1.3475535

PMID:21033829

Abstract

A custom developed (6)Li glass scintillator (APLF80+3Pr) for down-scattered neutron diagnostics in inertial confinement fusion experiments is presented. (6)Li provides an enhanced sensitivity for down-scattered neutrons in DD fusion and its experimentally observed 5-6 ns response time fulfills the requirement for down-scattered neutron detectors. A time-of-flight detector operating in the current mode using the APLF80+3Pr was designed and its feasibility observing down-scattered neutrons was demonstrated. Furthermore, a prototype design for a down-scattered neutron imaging detector was also demonstrated. This material promises viability as a future down-scattered neutron detector for the National Ignition Facility.

摘要

本文介绍了一种为惯性约束聚变实验中的向下散射中子诊断而定制开发的（6）Li玻璃闪烁体（APLF80+3Pr）。（6）Li对DD聚变中的向下散射中子具有更高的灵敏度，其实验观测到的5-6纳秒响应时间满足向下散射中子探测器的要求。设计了一种使用APLF80+3Pr以电流模式运行的飞行时间探测器，并证明了其观测向下散射中子的可行性。此外，还展示了一种向下散射中子成像探测器的原型设计。这种材料有望成为国家点火装置未来向下散射中子探测器的可行材料。