Notes on the sensitivity of calculated moderator coefficients to the model and cross-sections used
Creators
- 1. Graphite Reactor Physics Division, Atomic Energy Establishment, Winfrith, Dorchester, Dorset (United Kingdom)
Description
The effect of cross-section changes on the moderator temperature coefficient of reactivity of a Calder Hall reactor is investigated at various irradiations and temperatures. The method of calculation uses basic nuclear data and a detailed spectrum model and has been programmed for Mercury (Spectramet). Changes of 1% in certain cross-sections are found to change the moderator coefficient by 0,3 mn/deg C over a wide range of irradiations. Moderator coefficients obtained with Spectramet and Carlson and with different scattering laws are compared and found to be similar. Reasonable agreement is obtained between the calculated results and the measurements on Calder Hall. (author)
Availability note (English)
Available from INIS in electronic form; Also available from H.M. Stationery Office
Files
Restricted
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Additional details
Publishing Information
- Imprint Pagination
- 44 p.
- Report number
- AEEW-M--221
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38030293
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Descriptors DEI
- CROSS SECTIONS; IRRADIATION; MODERATORS; REACTIVITY; SCATTERING; SENSITIVITY; SPECTRA; TEMPERATURE COEFFICIENT
- Descriptors DEC
- REACTIVITY COEFFICIENTS
Optional Information
- Notes
- 10 refs, 9 tabs, 3 figs