Fissile material detector

Patent · 01 January 2002

OSTI ID:874210

Ivanov, Alexander I ^[1]; Lushchikov, Vladislav I ^[1]; Shabalin, Eugeny P ^[1]; Maznyy, Nikita G ^[1]; Khvastunov, Michael M ^[1]; Rowland, Mark ^[2]

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1. Dubna, RU
2. Alamo, CA

A detector for fissile materials which provides for integrity monitoring of fissile materials and can be used for nondestructive assay to confirm the presence of a stable content of fissile material in items. The detector has a sample cavity large enough to enable assay of large items of arbitrary configuration, utilizes neutron sources fabricated in spatially extended shapes mounted on the endcaps of the sample cavity, incorporates a thermal neutron filter insert with reflector properties, and the electronics module includes a neutron multiplicity coincidence counter.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: The Regents of the University of California (Oakland, CA)
• Patent Number(s): US 6341150
• OSTI ID: 874210
• Country of Publication: United States
• Language: English

Related Subjects

/376/
arbitrary
assay
cavity
coincidence
configuration
confirm
content
counter
detector
electronics
enable
endcaps
extended
fabricated
filter
fissile
incorporates
insert
integrity
items
material
materials
module
monitoring
mounted
multiplicity
neutron
nondestructive
presence
properties
provides
reflector
sample
shapes
sources
spatially
stable
thermal
thermal neutron
utilizes