Doppler effect measurement up to 2000 degrees C at FCA
- 1. Japan Atomic Energy Research Institute, Ibaraki (Japan)
Description
For the improvement of the Doppler effect calculation accuracy in high temperature range, the measurements of 238U Doppler effect up to 2000 degrees C were carried out as Fast Critical Assembly of JAERI. For the measurements, two methods were used: One is a reactivity worth measurement with a heated sample, and the other is a reaction rate measurement with a heated foil. In analyzing the experimental data, a collision probability cell code with ultra-fine group structure, PEACO-X, was used to generate effective cross sections of the Doppler sample, in which the resonance interaction effects were taken into account. The calculation of the Doppler effect is slightly underestimated the measured Doppler reactivity worths, while it showed a good agreement with the measured Doppler ratios for the reaction rate measurement
Additional details
Publishing Information
- Publisher
- American Nuclear Society, Inc.
- Imprint Place
- La Grange Park, IL (United States)
- Imprint Title
- Proceedings of the international conference nuclear data for science and technology. Volume 2
- Imprint Pagination
- 571 p.
- Journal Page Range
- p. 1009-1011.
Conference
- Title
- nuclear data for the twenty-first century.
- Acronym
- International conference on nuclear data for science and technology
- Dates
- 9-13 May 1994.
- Place
- Gatlinburg, TN (United States).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 26066952
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DOPPLER COEFFICIENT; FAST REACTORS; FUEL ASSEMBLIES; REACTIVITY WORTHS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 1000-4000 K
- Descriptors DEC
- EPITHERMAL REACTORS; REACTIVITY COEFFICIENTS; REACTORS; TEMPERATURE RANGE