Boron-Coated Straw Collar for Uranium Neutron Coincidence Collar Replacement

Technical Report · Sun Jan 01 04:00:00 EST 2017

DOI:https://doi.org/10.2172/1339397· OSTI ID:1339397

Hu, Jianwei ^[1]; Croft, Stephen ^[1]; McElroy, Robert Dennis ^[1]

---

1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The objective of this project was to design and optimize, in simulation space, an active neutron coincidence counter (or collar) using boron-coated straws (BCSs) as a non-³He replacement to the Uranium Neutron Coincidence Collar (UNCL). UNCL has been used by the International Atomic Energy Agency (IAEA) and European Atomic Energy Community (Euratom) since the 1980s to verify the ²³⁵U content in fresh light water reactor fuel assemblies for safeguards purposes. This report documents the design and optimization of the BCS collar.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1339397
• Report Number(s): ORNL/TM--2016/696; DN4001030; MDGA517
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
ACTIVATION ANALYSIS
BORON
COINCIDENCE METHODS
DESIGN
FISSION NEUTRONS
FUEL ASSEMBLIES
NUCLEAR FUELS
OPTIMIZATION
SAFEGUARDS
SIMULATION
STRAW
URANIUM
URANIUM 235
WATER COOLED REACTORS
WATER MODERATED REACTORS