skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Elemental analysis of as-built concrete and aluminum for the National Ignition Facility and their effect upon residual dose rates

Abstract

GDMS measurements provide final material compositions, which are compared to expected values. Finally, the calculations are repeated with the measured compositions and the residual dose rates are compared to the expected levels. 3-D neutronics calculations have been performed using the TART98 Monte Carlo transport code. Activation calculations have been completed with the ACAB activation code and the FENDL/A-2.0 activation cross section library. These codes have been benchmarked against experiment as well as against other codes. Activation calculations assume that the annual yield is produced in sixty equally spaced shots of 20 MJ yield each. To account for build-up on long-lived radionuclides, 30 years of operation is assumed. GDMS is a relatively new technique for elemental analysis. It is a rapid, direct method that provides quantitative results. Samples are exposed to an argon plasma (+1 kV). Sputtering occurs and atoms diffuse into a self-sustaining negative glow, where they are ionized. These ions are accelerated to 8 kV and pass into magnetic sectors where they are mass analyzed.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (US)
Sponsoring Org.:
USDOE Office of Defense Programs (DP) (US)
OSTI Identifier:
13854
Report Number(s):
UCRL-JC-133680; AT5015032
AT5015032; TRN: US0110814
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: First International Conference on Inertial Fusion Sciences and Applications (IFSA), Bordeaux (FR), 09/12/1999--09/17/1999; Other Information: PBD: 12 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALUMINIUM; CONCRETES; DOSE RATES; SPUTTERING; US NATIONAL IGNITION FACILITY; MULTI-ELEMENT ANALYSIS; MONTE CARLO METHOD; T CODES; RADIOACTIVATION; MASS SPECTROSCOPY

Citation Formats

Latkowski, J F, and Sanz, J. Elemental analysis of as-built concrete and aluminum for the National Ignition Facility and their effect upon residual dose rates. United States: N. p., 1999. Web.
Latkowski, J F, & Sanz, J. Elemental analysis of as-built concrete and aluminum for the National Ignition Facility and their effect upon residual dose rates. United States.
Latkowski, J F, and Sanz, J. Thu . "Elemental analysis of as-built concrete and aluminum for the National Ignition Facility and their effect upon residual dose rates". United States. https://www.osti.gov/servlets/purl/13854.
@article{osti_13854,
title = {Elemental analysis of as-built concrete and aluminum for the National Ignition Facility and their effect upon residual dose rates},
author = {Latkowski, J F and Sanz, J},
abstractNote = {GDMS measurements provide final material compositions, which are compared to expected values. Finally, the calculations are repeated with the measured compositions and the residual dose rates are compared to the expected levels. 3-D neutronics calculations have been performed using the TART98 Monte Carlo transport code. Activation calculations have been completed with the ACAB activation code and the FENDL/A-2.0 activation cross section library. These codes have been benchmarked against experiment as well as against other codes. Activation calculations assume that the annual yield is produced in sixty equally spaced shots of 20 MJ yield each. To account for build-up on long-lived radionuclides, 30 years of operation is assumed. GDMS is a relatively new technique for elemental analysis. It is a rapid, direct method that provides quantitative results. Samples are exposed to an argon plasma (+1 kV). Sputtering occurs and atoms diffuse into a self-sustaining negative glow, where they are ionized. These ions are accelerated to 8 kV and pass into magnetic sectors where they are mass analyzed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: