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

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....

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Bibliographic Details
Published in:Review of scientific instruments 2012-10, Vol.83 (10), p.10D729-10D729
Main Authors: Brown, Jr, 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
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGE-COUPLED DEVICES
CHARGES
Diagnostic systems
ELECTROMAGNETIC FIELDS
Electromagnetic interference
ENGINEERING
Ignition
INTERACTIONS
INTERFERENCE
LASER TARGETS
LASERS
Launch vehicles
MITIGATION
PLASMA DIAGNOSTICS
TEMPERATURE RANGE 0400-1000 K
US NATIONAL IGNITION FACILITY
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Summary: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.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4739313