Published February 1982 | Version v1
Report Open

An analysis of control rod reactivity worth and prompt neutron decay constant of the SHE-8 critical assembly

Creators

  • 1. Japan Atomic Energy Research Inst., Tokai, Ibaraki. Tokai Research Establishment

Description

Reactivity worth of experimental control rod and prompt neutron decay constant at critical state were analyzed for the graphite-moderated Semi-Homogeneous Critical Experimental Assembly SHE-8 with enriched uranium fuel. Alpha-eigenvalues of the assembly were evaluated by 18group S6P0 calculation with two-dimensional transport code TWOTRAN-2, and neutron spectrum were calculated with HTGR lattice burn-up code DELIGHT-5. Calculated results of control rod reactivity worth and prompt neutron decay constant agreed with the experimental data within the accuracy of 5%. And appropriateness of the calculational codes, nuclear data and analytical methods is verified by this analysis. (author)

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Additional titles

Subtitle (English)
Accuracy investigation of VHTR nuclear design methods, (2)

Publishing Information

Imprint Pagination
36 p.
Report number
JAERI-M--9911

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
14728612
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
ACCURACY; BORON; BURNABLE POISONS; COMPUTER CODES; DECAY; PROMPT NEUTRONS; REACTIVITY WORTHS; SHCA REACTOR; VHTR REACTOR
Descriptors DEC
BARYONS; ELEMENTARY PARTICLES; ELEMENTS; ENRICHED URANIUM REACTORS; EXPERIMENTAL REACTORS; FERMIONS; FISSION NEUTRONS; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HADRONS; HELIUM COOLED REACTORS; HOMOGENEOUS REACTORS; HTGR TYPE REACTORS; MATERIALS; NEUTRON ABSORBERS; NEUTRONS; NUCLEAR POISONS; NUCLEONS; POWER REACTORS; REACTOR MATERIALS; REACTORS; RESEARCH AND TEST REACTORS; SEMIMETALS; SOLID HOMOGENEOUS REACTORS; THERMAL REACTORS; ZERO POWER REACTORS