The magnetic recoil spectrometer for measurements of the absolute neutron spectrum at OMEGA and the NIF.
The magnetic recoil spectrometer for measurements of the absolute neutron spectrum at OMEGA and the NIF.
复制标题
用于测量 OMEGA 和 NIF 绝对中子能谱的磁反冲能谱仪。
DOI：
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发表时间：
2013
影响因子：
1.6
通讯作者：
R. Paguio
中科院分区：
文献类型：
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作者：
D. Casey;J. Frenje;M. G. Johnson;F. Séguin;C. Li;R. Petrasso;V. Glebov;J. Katz;J. Magoon;D. Meyerhofer;T. Sangster;M. Shoup;J. Ulreich;R. Ashabranner;R. Bionta;A. Carpenter;B. Felker;H. Khater;S. Lepape;A. Mackinnon;M. Mckernan;M. Moran;J. R. Rygg;M. Yeoman;R. Zacharias;R. Leeper;K. Fletcher;M. Farrell;D. Jasion;J. Kilkenny;R. Paguio
氚-氚(DT)惯性约束聚变产生的中子谱包含了大量关于内爆性能的信息，包括DT产额、离子温度和面密度。欧米茄激光设施和国家点火设施都使用了磁反冲谱仪测量欧米伽3至30 MeV和国家点火设施3至36 MeV的绝对中子谱。这些测量已经被用于诊断低温目标内爆的性能，具有前所未有的准确性。对MRS数据的解释需要详细了解MRS的响应和背景。本文描述了该体系的从头算表征，包括对MRS响应的蒙特卡罗模拟，以及对OMEGA和NIF上的体系进行现场校准的委托实验。
The neutron spectrum produced by deuterium-tritium (DT) inertial confinement fusion implosions contains a wealth of information about implosion performance including the DT yield, ion-temperature, and areal-density. The Magnetic Recoil Spectrometer (MRS) has been used at both the OMEGA laser facility and the National Ignition Facility (NIF) to measure the absolute neutron spectrum from 3 to 30 MeV at OMEGA and 3 to 36 MeV at the NIF. These measurements have been used to diagnose the performance of cryogenic target implosions to unprecedented accuracy. Interpretation of MRS data requires a detailed understanding of the MRS response and background. This paper describes ab initio characterization of the system involving Monte Carlo simulations of the MRS response in addition to the commission experiments for in situ calibration of the systems on OMEGA and the NIF.