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Delayed neutron kinetic functions for /sup 232/Th and /sup 238/U mixtures

Journal Article:

Abstract

In order to investigate the applicability of the method based on using kinetic functions, describing the emission of delayed neutrons by samples for determination of the content of fissionable nuclides in binary mixtures, the /sup 232/Th+/sup 238/U mixtures have been analyzed with the M-30 microtron. Fresh samples containing ThO/sub 2/, U/sub 3/O/sub 8/ and their mixtures are irradiated by bremstrahlung at the 15.5 MeV energy of accelerated electrons and 9 ..mu..A average current. The mass of samples is about 6 g. To determine the kinetic functions, temporal distributions of delayed neutron pulses are used, their maximum number for different samples being (1.7-3.0) x 10/sup 4/. In processing the data obtained two methods of normalization of the delayed neutron number in the kinetic functions are used: to the total yield of delayed neutrons and to the yield of /sup 133/I ..gamma..-quanta. The conclusion is drawn that the method investigated permits to determine relative /sup 238/U concentrations in the mixtures considered with 0.06-0.2 errors. Error reduction is achieved during the normalization of the number of delayed neutrons to the yield of /sup 130/I ..gamma..-quanta.
Publication Date:
Nov 01, 1984
Product Type:
Journal Article
Reference Number:
AIX-16-056808; EDB-85-151516
Resource Relation:
Journal Name: At. Ehnerg.; (USSR); Journal Volume: 57:5; Other Information: For English translation see the journal Soviet Journal of Atomic Energy (USA)
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; THORIUM 232; DELAYED NEUTRONS; ISOTOPE RATIO; URANIUM 238; ACCURACY; ALGORITHMS; BINARY MIXTURES; DATA PROCESSING; NUCLEAR REACTION YIELD; PHOTONUCLEAR REACTIONS; THORIUM 232 TARGET; URANIUM 238 TARGET; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; BARYONS; DISPERSIONS; ELEMENTARY PARTICLES; EVEN-EVEN NUCLEI; FERMIONS; FISSION NEUTRONS; HADRONS; HEAVY NUCLEI; ISOTOPES; MATHEMATICAL LOGIC; MIXTURES; NEUTRONS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; PROCESSING; RADIOISOTOPES; TARGETS; THORIUM ISOTOPES; URANIUM ISOTOPES; YEARS LIVING RADIOISOTOPES; YIELDS; 652022* - Nuclear Properties & Reactions, A=220 & above, Experimental- Radioactive Decay- (-1987)
OSTI ID:
5367027
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: AENGA
Submitting Site:
HEDB
Size:
Pages: 363-364
Announcement Date:
Aug 01, 1985

Journal Article:

Citation Formats

Ganich, P P, Goshovskij, M V, Lendel, A I, Lomonosov, V I, Sikora, D I, and Sychev, S I. Delayed neutron kinetic functions for /sup 232/Th and /sup 238/U mixtures. USSR: N. p., 1984. Web.
Ganich, P P, Goshovskij, M V, Lendel, A I, Lomonosov, V I, Sikora, D I, & Sychev, S I. Delayed neutron kinetic functions for /sup 232/Th and /sup 238/U mixtures. USSR.
Ganich, P P, Goshovskij, M V, Lendel, A I, Lomonosov, V I, Sikora, D I, and Sychev, S I. 1984. "Delayed neutron kinetic functions for /sup 232/Th and /sup 238/U mixtures." USSR.
@misc{etde_5367027,
title = {Delayed neutron kinetic functions for /sup 232/Th and /sup 238/U mixtures}
author = {Ganich, P P, Goshovskij, M V, Lendel, A I, Lomonosov, V I, Sikora, D I, and Sychev, S I}
abstractNote = {In order to investigate the applicability of the method based on using kinetic functions, describing the emission of delayed neutrons by samples for determination of the content of fissionable nuclides in binary mixtures, the /sup 232/Th+/sup 238/U mixtures have been analyzed with the M-30 microtron. Fresh samples containing ThO/sub 2/, U/sub 3/O/sub 8/ and their mixtures are irradiated by bremstrahlung at the 15.5 MeV energy of accelerated electrons and 9 ..mu..A average current. The mass of samples is about 6 g. To determine the kinetic functions, temporal distributions of delayed neutron pulses are used, their maximum number for different samples being (1.7-3.0) x 10/sup 4/. In processing the data obtained two methods of normalization of the delayed neutron number in the kinetic functions are used: to the total yield of delayed neutrons and to the yield of /sup 133/I ..gamma..-quanta. The conclusion is drawn that the method investigated permits to determine relative /sup 238/U concentrations in the mixtures considered with 0.06-0.2 errors. Error reduction is achieved during the normalization of the number of delayed neutrons to the yield of /sup 130/I ..gamma..-quanta.}
journal = {At. Ehnerg.; (USSR)}
volume = {57:5}
journal type = {AC}
place = {USSR}
year = {1984}
month = {Nov}
}