国家点火装置中诊断产生的电磁干扰的评估与缓解

Assessment and mitigation of diagnostic-generated electromagnetic interference at the National Ignition Facility.

作者信息

Brown C G, Ayers J, Felker B, Ferguson W, Holder J P, Nagel S R, Piston K W, Simanovskaia N, Throop A L, Chung M, Hilsabeck T

机构信息

Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

出版信息

Rev Sci Instrum. 2012 Oct;83(10):10D729. doi: 10.1063/1.4739313.

DOI:10.1063/1.4739313

PMID:23126901

Abstract

Electromagnetic interference (EMI) is an ever-present challenge at laser facilities such as the National Ignition Facility (NIF). The major source of EMI at such facilities is laser-target interaction that can generate intense electromagnetic fields within, and outside of, the laser target chamber. In addition, the diagnostics themselves can be a source of EMI, even interfering with themselves. In this paper we describe EMI generated by ARIANE and DIXI, present measurements, and discuss effects of the diagnostic-generated EMI on ARIANE's CCD and on a PMT nearby DIXI. Finally we present some of the efforts we have made to mitigate the effects of diagnostic-generated EMI on NIF diagnostics.

摘要

电磁干扰（EMI）是诸如国家点火装置（NIF）等激光设施中一直存在的挑战。此类设施中电磁干扰的主要来源是激光与靶的相互作用，这种相互作用会在激光靶室内外产生强电磁场。此外，诊断设备本身也可能成为电磁干扰源，甚至会干扰自身。在本文中，我们描述了ARIANE和DIXI产生的电磁干扰，展示了测量结果，并讨论了诊断设备产生的电磁干扰对ARIANE的电荷耦合器件（CCD）以及DIXI附近的光电倍增管（PMT）的影响。最后，我们介绍了为减轻诊断设备产生的电磁干扰对NIF诊断设备的影响所做的一些工作。