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Title: Cleanliness for the NIF 1ω Laser Amplifiers

Abstract

During the years before the National Ignition Facility (NIF) laser system, a set of generally accepted cleaning procedures had been developed for the large 1ω amplifiers of an inertial confinement fusion laser, and up until 1999 similar procedures were planned for NIF. Several parallel sets of test results were obtained from 1992 to 1999 for large amplifiers using these accepted cleaning procedures in the Beamlet physics test bed and in the Amplifier Module Prototype Laboratory (AMPLAB), a four-slab-high prototype large amplifier structure. Both of these showed damage to their slab surfaces that, if projected to operating conditions for NIF, would lead to higher than acceptable slab-refurbishment rates. Finally, this study tracks the search for the smoking gun origin of this damage and describes the solution employed in NIF for avoiding flashlamp-induced aerosol damage to its 1ω amplifier slabs.

Authors:
 [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1256437
Report Number(s):
LLNL-JRNL-658065
Journal ID: ISSN 1536-1055
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Fusion Science and Technology
Additional Journal Information:
Journal Volume: 69; Journal Issue: 1; Journal ID: ISSN 1536-1055
Publisher:
American Nuclear Society
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; flashlamp-induced aerosols; laser amplifier environment; laser slab damage

Citation Formats

Spaeth, M. L., Manes, K. R., and Honig, J. Cleanliness for the NIF 1ω Laser Amplifiers. United States: N. p., 2017. Web. doi:10.13182/FST14-861.
Spaeth, M. L., Manes, K. R., & Honig, J. Cleanliness for the NIF 1ω Laser Amplifiers. United States. doi:10.13182/FST14-861.
Spaeth, M. L., Manes, K. R., and Honig, J. Thu . "Cleanliness for the NIF 1ω Laser Amplifiers". United States. doi:10.13182/FST14-861. https://www.osti.gov/servlets/purl/1256437.
@article{osti_1256437,
title = {Cleanliness for the NIF 1ω Laser Amplifiers},
author = {Spaeth, M. L. and Manes, K. R. and Honig, J.},
abstractNote = {During the years before the National Ignition Facility (NIF) laser system, a set of generally accepted cleaning procedures had been developed for the large 1ω amplifiers of an inertial confinement fusion laser, and up until 1999 similar procedures were planned for NIF. Several parallel sets of test results were obtained from 1992 to 1999 for large amplifiers using these accepted cleaning procedures in the Beamlet physics test bed and in the Amplifier Module Prototype Laboratory (AMPLAB), a four-slab-high prototype large amplifier structure. Both of these showed damage to their slab surfaces that, if projected to operating conditions for NIF, would lead to higher than acceptable slab-refurbishment rates. Finally, this study tracks the search for the smoking gun origin of this damage and describes the solution employed in NIF for avoiding flashlamp-induced aerosol damage to its 1ω amplifier slabs.},
doi = {10.13182/FST14-861},
journal = {Fusion Science and Technology},
number = 1,
volume = 69,
place = {United States},
year = {2017},
month = {3}
}

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Works referenced in this record:

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