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Title: Topaz II preliminary safety assessment

The Strategic Defense Initiative Organization (SDIO) decided to investigate the possibility of launching a Russian Topaz 11 space nuclear power system. A preliminary safety assessment was conducted to determine whether or not a space mission could be conducted safely and within budget constraints. As part of this assessment, a safety policy and safety functional requirements were developed to guide both the safely assessment and future Topaz II activities. A review of the Russian flight safety program was conducted and documented. Our preliminary safety assessment included a top level event tree, neutronic analysis of normal and accident configurations, an evaluation of temperature coefficients of reactivity, a reentry and disposal analysis, and analysis of postulated launch abort impact accidents, and an analysis of postulated propellant fire and explosion accidents. Based on the assessment, it appears that it will be possible to safely launch the Topaz II system in the US with some possible system modifications. The principal system modifications will probably include design changes to preclude water flooded criticality and to assure intact reentry.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. (Sandia National Labs., Albuquerque, NM (United States))
  2. (Air Force Phillips Laboratory, Albuquerque, NM (United States))
  3. (Los Alamos National Lab., NM (United States))
  4. (New Mexico Univ., Albuquerque, NM (United States). Dept. of Chemical and Nuclear Engineering)
Publication Date:
OSTI Identifier:
7144402
Report Number(s):
SAND-92-2242C; CONF-930103--16
ON: DE93002457
DOE Contract Number:
AC04-76DP00789
Resource Type:
Conference
Resource Relation:
Conference: 10. symposium on space nuclear power and propulsion, Albuquerque, NM (United States), 10-14 Jan 1993
Research Org:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Org:
DOD; Department of Defense, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; SPACE POWER REACTORS; REACTOR SAFETY; BALLISTIC MISSILE DEFENSE; BUDGETS; MISSION ANALYSIS; MODIFICATIONS; REACTIVITY; REACTOR ACCIDENTS; REACTOR PHYSICS; SAFETY ANALYSIS; SYSTEMS ANALYSIS; ACCIDENTS; MOBILE REACTORS; NATIONAL DEFENSE; PHYSICS; POWER REACTORS; REACTORS; SAFETY NESDPS Office of Nuclear Energy Space and Defense Power Systems 220900* -- Nuclear Reactor Technology-- Reactor Safety; 210600 -- Power Reactors, Auxiliary, Mobile Package, & Transportable; 450500 -- Military Technology, Weaponry, & National Defense-- Strategic Defense Initiative-- (1990-)