Measurements and calculations of 10B(n,He) and 235U(n,f) reaction rates in a control rod mockup in ZPPR
- 1. Argonne National Lab., Idaho Falls, ID
Description
Results are reported for 10B(n,He) reaction rate measurements inside B C pellets in a prototypic control rod mockup in the Zero Power Plutonium Reactor. The helium accumulation fluence monitor (HAFM) technique was used, with absolute amounts of helium measured by isotope dilution mass spectrometry. Rates of 235U fission were measured in foils irradiated between B4C pellets. Both helium production and uranium fission rates were calculated using three-dimensional nodal transport methods. Average C/E values in the control rod were 0.961 +/- 0.034 for boron capture and 1.094 +/- 0.008 for uranium fission based on ENDF/B version V.2 cross sections. The C/E values were nearly constant in the rod interior but changed by a few percent near the rod tip. For both reactions, the C/E values were brought closer to unity by increasing the boron capture cross sections
Additional details
Publishing Information
- Imprint Title
- Proceedings of the topical meeting on reactor physics and safety: Sessions 11-16. Volume 2
- Journal Page Range
- p. 1145-1156.
- Report number
- NUREG/CP--0080-Vol.2
Conference
- Title
- Advances in reactor physics and safety meeting.
- Dates
- 17-19 Sep 1986.
- Place
- Saratoga Springs, NY (USA).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 18028714
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- ACTIVATION ANALYSIS; BORON CARBIDES; BORON 10 REACTIONS; CAPTURE; CONTROL ELEMENTS; CROSS SECTIONS; FISSION; HELIUM; IRRADIATION; MASS SPECTROSCOPY; NEUTRON TRANSPORT; SIMULATION; SWELLING; URANIUM 235 REACTIONS; ZPPR REACTOR
- Descriptors DEC
- BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CHEMICAL ANALYSIS; DEFORMATION; ELEMENTS; EPITHERMAL REACTORS; EXPERIMENTAL REACTORS; FAST REACTORS; HEAVY ION REACTIONS; NEUTRAL-PARTICLE TRANSPORT; NONDESTRUCTIVE ANALYSIS; NONMETALS; NUCLEAR REACTIONS; RADIATION TRANSPORT; RARE GASES; REACTOR COMPONENTS; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SPECTROSCOPY; ZERO POWER REACTORS