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Title: Apparatus for irradiating a continuously flowing stream of fluid. [For neutron activation analysis]

Abstract

An apparatus for irradiating a continuously flowing stream of fluid is disclosed. The apparatus consists of a housing having a spherical cavity and a spherical moderator containing a radiation source positioned within the spherical cavity. The spherical moderator is of lesser diameter than the spherical cavity so as to define a spherical annular volume around the moderator. The housing includes fluid intake and output conduits which open onto the spherical cavity at diametrically opposite positions. Fluid flows through the cavity around the spherical moderator and is uniformly irradiated due to the 4..pi.. radiation geometry. The irradiation source, for example a /sup 252/Cf neutron source, is removable from the spherical moderator through a radial bore which extends outwardly to an opening on the outside of the housing. The radiation source may be routinely removed without interrupting the flow of fluid or breaching the containment of the fluid.

Inventors:
;
Issue Date:
OSTI Identifier:
6443153
Application Number:
ON: DE83010481
Assignee:
ERA-08-029993; EDB-83-086183
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 07 ISOTOPES AND RADIATION SOURCES; FLUIDS; ACTIVATION ANALYSIS; IRRADIATION DEVICES; DESIGN; NEUTRON ACTIVATION ANALYZERS; CALIFORNIUM 252; CAVITIES; IRRADIATION; MODERATORS; NEUTRON SOURCES; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; CALIFORNIUM ISOTOPES; CHEMICAL ANALYSIS; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ISOTOPES; MEASURING INSTRUMENTS; NUCLEI; PARTICLE SOURCES; RADIATION SOURCES; RADIOISOTOPES; YEARS LIVING RADIOISOTOPES; 400101* - Activation, Nuclear Reaction, Radiometric & Radiochemical Procedures; 070201 - Radiation Sources- Design, Fabrication & Operation

Citation Formats

Speir, L.G., and Adams, E.L. Apparatus for irradiating a continuously flowing stream of fluid. [For neutron activation analysis]. United States: N. p., 1982. Web.
Speir, L.G., & Adams, E.L. Apparatus for irradiating a continuously flowing stream of fluid. [For neutron activation analysis]. United States.
Speir, L.G., and Adams, E.L. Thu . "Apparatus for irradiating a continuously flowing stream of fluid. [For neutron activation analysis]". United States.
@article{osti_6443153,
title = {Apparatus for irradiating a continuously flowing stream of fluid. [For neutron activation analysis]},
author = {Speir, L.G. and Adams, E.L.},
abstractNote = {An apparatus for irradiating a continuously flowing stream of fluid is disclosed. The apparatus consists of a housing having a spherical cavity and a spherical moderator containing a radiation source positioned within the spherical cavity. The spherical moderator is of lesser diameter than the spherical cavity so as to define a spherical annular volume around the moderator. The housing includes fluid intake and output conduits which open onto the spherical cavity at diametrically opposite positions. Fluid flows through the cavity around the spherical moderator and is uniformly irradiated due to the 4..pi.. radiation geometry. The irradiation source, for example a /sup 252/Cf neutron source, is removable from the spherical moderator through a radial bore which extends outwardly to an opening on the outside of the housing. The radiation source may be routinely removed without interrupting the flow of fluid or breaching the containment of the fluid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {5}
}