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

Patent · Thu May 13 04:00:00 EDT 1982

OSTI ID:6443153

Speir, L G; Adams, E L

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.

• DOE Contract Number: W-7405-ENG-36
• Assignee: ERA-08-029993; EDB-83-086183
• Patent Number(s): None
• Application Number: ON: DE83010481
• OSTI ID: 6443153
• Country of Publication: United States
• Language: English

Related Subjects

07 ISOTOPE AND RADIATION SOURCES
070201 -- Radiation Sources-- Design
Fabrication & Operation
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTIVATION ANALYSIS
ALPHA DECAY RADIOISOTOPES
CALIFORNIUM 252
CALIFORNIUM ISOTOPES
CAVITIES
CHEMICAL ANALYSIS
DESIGN
EVEN-EVEN NUCLEI
FLUIDS
HEAVY NUCLEI
IRRADIATION
IRRADIATION DEVICES
ISOTOPES
MEASURING INSTRUMENTS
MODERATORS
NEUTRON ACTIVATION ANALYZERS
NEUTRON SOURCES
NUCLEI
PARTICLE SOURCES
RADIATION SOURCES
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES