Conceptual designs of NDA instruments for the NRTA system at the Rokkasho Reprocessing Plant
- Los Alamos National Lab., NM (United States). Safeguards Science and Technology Group; and others
The authors are studying conceptual designs of selected nondestructive assay (NDA) instruments for the near-real-time accounting system at the rokkasho Reprocessing Plant (RRP) of Japan Nuclear Fuel Limited (JNFL). The JNFL RRP is a large-scale commercial reprocessing facility for spent fuel from boiling-water and pressurized-water reactors. The facility comprises two major components: the main process area to separate and produce purified plutonium nitrate and uranyl nitrate from irradiated reactor spent fuels, and the co-denitration process area to combine and convert the plutonium nitrate and uranyl nitrate into mixed oxide (MOX). The selected NDA instruments for conceptual design studies are the MOX-product canister counter, holdup measurement systems for calcination and reduction furnaces and for blenders in the co-denitration process, the isotope dilution gamma-ray spectrometer for the spent fuel dissolver solution, and unattended verification systems. For more effective and practical safeguards and material control and accounting at RRP, the authors are also studying the conceptual design for the UO{sub 3} large-barrel counter. This paper discusses the state-of-the-art NDA conceptual design and research and development activities for the above instruments.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 378796
- Report Number(s):
- LA-UR-96-2572; CONF-960767-41; ON: DE96014210; TRN: AHC29620%%8
- Resource Relation:
- Conference: 37. annual meeting of the Institute of Nuclear Materials Management, Naples, FL (United States), 28 Jul - 1 Aug 1996; Other Information: PBD: [1996]
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
INCLUDING NUCLEAR AND PARTICLE DETECTORS
05 NUCLEAR FUELS
JAPAN
FUEL REPROCESSING PLANTS
NUCLEAR MATERIALS MANAGEMENT
GAMMA SPECTROMETERS
DESIGN
NEUTRON SPECTROMETERS
SPENT FUELS
MIXED OXIDE FUELS
NONDESTRUCTIVE ANALYSIS
GAMMA SPECTROSCOPY
PERFORMANCE
MATERIAL UNACCOUNTED FOR
GLOVEBOXES
COINCIDENCE SPECTROMETRY
PLUTONIUM 240
URANIUM TRIOXIDE
AUTOMATION
COMPUTERIZED CONTROL SYSTEMS