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

Title: Material control and accountability aspects of safeguards for the USA /sup 233/U/TH fuel recycle plant

Abstract

Two fuel cycles are considered. The highly enriched uranium (HEU) cycle uses uranium enriched 93% in /sup 235/U as the initial fuel. The medium enriched uranium (MEU) cycle uses uranium with a /sup 235/U enrichment less than 20% as its initial fuel. In both, /sup 233/U is bred from thorium. The HEU /sup 235/U and the /sup 233/U of both cycles are recycled. The MEU /sup 235/U is retired to waste after one reactor cycle. Typical heavy metal contents of spent fuel elements from both cycles are presented. The main functional areas of the recycle plant are Shipping, Receiving, and Storage; Reprocessing; Refabrication; and Waste Treatment. A real-time materials accountability system will manage the data provided by measurements from all four areas. Simulations of material flow used in the HTGR development program are forerunners of such a system. The material control and accountability aspects of Reprocessing and Refabrication only are discussed. The proposed accountability areas are identified and the measurement techniques appropriate to various streams crossing the boundaries of the areas are identified. Special emphasis is placed on novel nondestructive methods developed for assaying solid materials containing /sup 233/U-Th. The material form, total uranium and plutonium, and activity of selectedmore » reprocessing streams are listed. The isotopics and activity of the uranium input into Refabrication are also presented.« less

Authors:
; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6441129
Report Number(s):
ORNL/TM-6645
TRN: 79-003966
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; FUEL CYCLE CENTERS; NUCLEAR MATERIALS MANAGEMENT; HTGR TYPE REACTORS; FUEL CYCLE; ACCOUNTING; SAFEGUARDS; THORIUM CYCLE; URANIUM 233; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; EVEN-ODD NUCLEI; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HEAVY NUCLEI; ISOTOPES; MANAGEMENT; NUCLEAR FACILITIES; NUCLEI; RADIOISOTOPES; REACTORS; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES; 055001* - Nuclear Fuels- Safeguards, Inspection, & Accountability- Technical Aspects; 050800 - Nuclear Fuels- Spent Fuels Reprocessing

Citation Formats

Carpenter, Jr., J. A., McNeany, S. R., Angelini, P., Holder, N. D., and Abraham, L. Material control and accountability aspects of safeguards for the USA /sup 233/U/TH fuel recycle plant. United States: N. p., 1979. Web. doi:10.2172/6441129.
Carpenter, Jr., J. A., McNeany, S. R., Angelini, P., Holder, N. D., & Abraham, L. Material control and accountability aspects of safeguards for the USA /sup 233/U/TH fuel recycle plant. United States. https://doi.org/10.2172/6441129
Carpenter, Jr., J. A., McNeany, S. R., Angelini, P., Holder, N. D., and Abraham, L. 1979. "Material control and accountability aspects of safeguards for the USA /sup 233/U/TH fuel recycle plant". United States. https://doi.org/10.2172/6441129. https://www.osti.gov/servlets/purl/6441129.
@article{osti_6441129,
title = {Material control and accountability aspects of safeguards for the USA /sup 233/U/TH fuel recycle plant},
author = {Carpenter, Jr., J. A. and McNeany, S. R. and Angelini, P. and Holder, N. D. and Abraham, L.},
abstractNote = {Two fuel cycles are considered. The highly enriched uranium (HEU) cycle uses uranium enriched 93% in /sup 235/U as the initial fuel. The medium enriched uranium (MEU) cycle uses uranium with a /sup 235/U enrichment less than 20% as its initial fuel. In both, /sup 233/U is bred from thorium. The HEU /sup 235/U and the /sup 233/U of both cycles are recycled. The MEU /sup 235/U is retired to waste after one reactor cycle. Typical heavy metal contents of spent fuel elements from both cycles are presented. The main functional areas of the recycle plant are Shipping, Receiving, and Storage; Reprocessing; Refabrication; and Waste Treatment. A real-time materials accountability system will manage the data provided by measurements from all four areas. Simulations of material flow used in the HTGR development program are forerunners of such a system. The material control and accountability aspects of Reprocessing and Refabrication only are discussed. The proposed accountability areas are identified and the measurement techniques appropriate to various streams crossing the boundaries of the areas are identified. Special emphasis is placed on novel nondestructive methods developed for assaying solid materials containing /sup 233/U-Th. The material form, total uranium and plutonium, and activity of selected reprocessing streams are listed. The isotopics and activity of the uranium input into Refabrication are also presented.},
doi = {10.2172/6441129},
url = {https://www.osti.gov/biblio/6441129}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}