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- Title
Real-Time Detection of UREX+3a Extraction Streams for Materials Accountancy.
- Authors
Goddard, Braden; Charlton, William S.; McDeavitt, Sean M.
- Abstract
Due to increased construction of nuclear power plants, current stockpiles of used nuclear fuel, and a desire of the public to reduce the amount of this used nuclear fuel, reprocessing is gaining popularity. However, reprocessing facilities in non-weapon states must be safeguarded. To help create a safeguards strategy for non-weapons states, gamma ray measurements from samples of the UREX+3a reprocessing method were made with a variety of detector types and times. It was determined that the errors from quantitative measurements were too large for safeguards purposes; however, a safeguards strategy based on qualitative gamma ray and neutron measurements was created. Self-shielding and neutron damage to gamma detectors were also looked at. It was determined that there is no noticeable self-shielding for internal pipe diameters less than two inches and that HPGe N-type detectors would be suitable for a neutron radiation environment. Gamma ray spectra were simulated in Monte Carlo Neutron Particle Transport Code for UREX+3a reprocessed fuel that had a decay time of three years. A conclusion was reached that the safeguards approach proposed in this paper would best be suited as an addition to existing safeguard strategies.
- Subjects
REACTOR fuel reprocessing; NUCLEAR power plant design &; construction; GAMMA ray measurement; GAMMA ray detectors; NEUTRON measurement; EXTRACTION (Chemistry); NUCLEAR fuel management
- Publication
Journal of the Institute of Nuclear Materials Management, 2009, Vol 38, Issue 1, p34
- ISSN
0893-6188
- Publication type
Article