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Epithermal and Thermal Spectrum Indices in Heavy Water Lattices

Abstract

Spectral indices have been measured by foil activation technique in a number of different D{sub 2}O-moderated lattices in the Swedish zero power reactor R0 and the pressurized exponential assembly TZ. In most cases the fuel was in the form of single rods, distributed uniformly in the lattice. Parameters in these cases were lattice pitch and fuel composition. A 31-rod cluster lattice was also investigated, with the moderator temperature varying up to 210 deg C. On the basis of these measurements, as well as measurements on cluster lattices, reported by other investigators, it has been possible to derive simple correlations for the spectral indices, which seem to be of fairly general validity for D{sub 2}O lattices. The experimental results have also been compared to calculations with the multigroup collision probability program FLEF.
Publication Date:
May 15, 1967
Product Type:
Technical Report
Report Number:
AE-277
Resource Relation:
Other Information: 36 refs., 5 figs., 11 tabs.
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; HEAVY WATER; REACTOR LATTICE PARAMETERS; EPITHERMAL NEUTRONS; THERMAL NEUTRONS
OSTI ID:
20956320
Research Organizations:
AB Atomenergi, Nykoeping (Sweden)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
TRN: SE0708753
Availability:
Commercial reproduction prohibited; OSTI as DE20956320
Submitting Site:
SWDN
Size:
48 pages
Announcement Date:
Dec 29, 2007

Citation Formats

Sokolowski, E K, and Jonsson, A. Epithermal and Thermal Spectrum Indices in Heavy Water Lattices. Sweden: N. p., 1967. Web.
Sokolowski, E K, & Jonsson, A. Epithermal and Thermal Spectrum Indices in Heavy Water Lattices. Sweden.
Sokolowski, E K, and Jonsson, A. 1967. "Epithermal and Thermal Spectrum Indices in Heavy Water Lattices." Sweden.
@misc{etde_20956320,
title = {Epithermal and Thermal Spectrum Indices in Heavy Water Lattices}
author = {Sokolowski, E K, and Jonsson, A}
abstractNote = {Spectral indices have been measured by foil activation technique in a number of different D{sub 2}O-moderated lattices in the Swedish zero power reactor R0 and the pressurized exponential assembly TZ. In most cases the fuel was in the form of single rods, distributed uniformly in the lattice. Parameters in these cases were lattice pitch and fuel composition. A 31-rod cluster lattice was also investigated, with the moderator temperature varying up to 210 deg C. On the basis of these measurements, as well as measurements on cluster lattices, reported by other investigators, it has been possible to derive simple correlations for the spectral indices, which seem to be of fairly general validity for D{sub 2}O lattices. The experimental results have also been compared to calculations with the multigroup collision probability program FLEF.}
place = {Sweden}
year = {1967}
month = {May}
}