Methods of mathematical statistics for verification of hydrogen content in zirconium hydride moderator
- Kurchatov Inst. Russian Research Centre, Moscow (Russian Federation)
The hydrogen content of zirconium hydride blocks used as the moderator in Topaz-2-type space reactors is estimated according to correlation-regression analysis procedures of mathematical statistics and is based on the results of the definition of the reactivity of the blocks in a research critical assembly. A linear mathematical model for a variable response is formulated within the framework of the first-order perturbation theory applied to the estimation of reactivity effects in reactors. A PASPORT computer code is written based on the developed algorithm. The statistical analysis of the available data performed by using PASPORT shows that the developed approach allows determination of the insignificance of the contribution of the impurities to the reactivity of the blocks, verification of the manufacturer's data on the hydrogen content in zirconium hydride blocks, and estimation of the reactivity shift in a standard block.
- OSTI ID:
- 6619079
- Journal Information:
- Nuclear Science and Engineering; (United States), Vol. 119:2; ISSN 0029-5639
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HYDRIDE MODERATORS
CHEMICAL COMPOSITION
SPACE POWER REACTORS
TOPAZ REACTOR
ZIRCONIUM HYDRIDES
HYDROGEN
NEUTRON TRANSPORT
P CODES
COMPUTER CODES
ELEMENTS
EXPERIMENTAL REACTORS
HYDRIDE MODERATED REACTORS
HYDRIDES
HYDROGEN COMPOUNDS
MOBILE REACTORS
MODERATORS
NEUTRAL-PARTICLE TRANSPORT
NONMETALS
POWER REACTORS
RADIATION TRANSPORT
REACTORS
RESEARCH AND TEST REACTORS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
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