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Title: NEUTRONIC REACTOR

Abstract

A nuclear reactor for isotope production is described. This reactor is designed to provide a maximum thermal neutron flux in a region adjacent to the periphery of the reactor rather than in the center of the reactor. The core of the reactor is generally centrally located with respect tn a surrounding first reflector, constructed of beryllium. The beryllium reflector is surrounded by a second reflector, constructed of graphite, which, in tune, is surrounded by a conventional thermal shield. Water is circulated through the core and the reflector and functions both as a moderator and a coolant. In order to produce a greatsr maximum thermal neutron flux adjacent to the periphery of the reactor rather than in the core, the reactor is designed so tbat the ratio of neutron scattering cross section to neutron absorption cross section averaged over all of the materials in the reflector is approximately twice the ratio of neutron scattering cross section to neutron absorption cross section averaged over all of the material of the core of the reactor.

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4330350
Patent Number(s):
2831806
Assignee:
U. S. Atomic Energy Commission DTIE; NSA-12-014445
NSA Number:
NSA-12-014445
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; ABSORPTION; BERYLLIUM; CONFIGURATION; CROSS SECTIONS; GRAPHITE; NEUTRON FLUX; PATENT; RADIOISOTOPES; REACTOR CORE; REACTORS; REFLECTORS; SCATTERING; THERMAL INSULATION; THERMAL NEUTRONS; WATER COOLANT

Citation Formats

Wigner, E.P. NEUTRONIC REACTOR. United States: N. p., 1958. Web.
Wigner, E.P. NEUTRONIC REACTOR. United States.
Wigner, E.P. Tue . "NEUTRONIC REACTOR". United States.
@article{osti_4330350,
title = {NEUTRONIC REACTOR},
author = {Wigner, E.P.},
abstractNote = {A nuclear reactor for isotope production is described. This reactor is designed to provide a maximum thermal neutron flux in a region adjacent to the periphery of the reactor rather than in the center of the reactor. The core of the reactor is generally centrally located with respect tn a surrounding first reflector, constructed of beryllium. The beryllium reflector is surrounded by a second reflector, constructed of graphite, which, in tune, is surrounded by a conventional thermal shield. Water is circulated through the core and the reflector and functions both as a moderator and a coolant. In order to produce a greatsr maximum thermal neutron flux adjacent to the periphery of the reactor rather than in the core, the reactor is designed so tbat the ratio of neutron scattering cross section to neutron absorption cross section averaged over all of the materials in the reflector is approximately twice the ratio of neutron scattering cross section to neutron absorption cross section averaged over all of the material of the core of the reactor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1958},
month = {4}
}