DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

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. https://doi.org/10.13182/FST14-861
Spaeth, M. L., Manes, K. R., and Honig, J. Thu . "Cleanliness for the NIF 1ω Laser Amplifiers". United States. https://doi.org/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 = {Thu Mar 23 00:00:00 EDT 2017},
month = {Thu Mar 23 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Light propagation through large laser systems
journal, September 1981


Advances in cleaning metal and glass surfaces to micron‐level cleanliness
journal, March 1978

  • Stowers, Irving F.
  • Journal of Vacuum Science and Technology, Vol. 15, Issue 2
  • DOI: 10.1116/1.569504

Stochastic Problems in Physics and Astronomy
journal, January 1943


Achieving and maintaining cleanliness in NIF amplifiers
conference, July 1999

  • Stowers, Irving F.; Horvath, John A.; Menapace, Joseph A.
  • Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, SPIE Proceedings
  • DOI: 10.1117/12.354175

Hot images from obscurations
journal, January 1993

  • Hunt, J. T.; Manes, K. R.; Renard, P. A.
  • Applied Optics, Vol. 32, Issue 30
  • DOI: 10.1364/AO.32.005973

Clean Construction Protocol for the National Ignition Facility Beampath and Utilities
journal, September 2003


Rear-surface laser damage on 355-nm silica optics owing to Fresnel diffraction on front-surface contamination particles
journal, January 2000

  • Génin, François Y.; Feit, Michael D.; Kozlowski, Mark R.
  • Applied Optics, Vol. 39, Issue 21
  • DOI: 10.1364/AO.39.003654

Works referencing / citing this record:

Cleaning State of the Loop Case for Optical Crystal Module in Final Optics Assembly
journal, November 2018


Characteristics of Local Modulation Beam Propagating through Spatial Filter System
journal, January 2018

  • You, Kewei; Zhang, Yanli; Zhang, Xuejie
  • Advances in Condensed Matter Physics, Vol. 2018
  • DOI: 10.1155/2018/2545923

Investigation of a low-stress and low-contamination clamping method for large-aperture optics
journal, October 2019