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Stabilized, hand-held, gamma-ray verification instrument for special nuclear materials

Conference ·
DOI:https://doi.org/10.1109/23.34624· OSTI ID:6663201
;
For many years, Los Alamos has developed intelligent, hand-held, search instruments for use by non-specialists to search for special nuclear materials (SNM). The instruments sense SNM by detecting its emitted radiation with scintillation detectors monitored by digital alarm circuitry. Now, we have developed a new hand-held instrument that can verify the presence or absence of particular radioisotopes by analyzing gamma-ray spectra. The new instrument is similar to recent, microprocessor-based, search instruments, but has LED detector stabilization, three adjustable regions-of-interest, and additional operating programs for spectrum analysis. We call the new instrument an SNM verification instrument. Its spectrum analysis capability can verify the presence or absence of specific plutonium isotopes in containers or verify the presence of uranium and its enrichment. The instrument retains the search capability, light weight, and low-power requirement of its predecessors. Its ready portability, detector stabilization, and simple operation allow individuals with little technical training to verify the contents of SNM containers. 5 refs., 5 figs.
Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6663201
Report Number(s):
LA-UR-88-3673; CONF-881103-16; ON: DE89003467
Country of Publication:
United States
Language:
English

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Related Subjects

055000 -- Nuclear Fuels-- Safeguards
Inspection
& Accountability
440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
ACTINIDE ISOTOPES
ACTINIDES
DIAGRAMS
ELEMENTS
EQUIPMENT
FLOWSHEETS
ISOTOPES
MANAGEMENT
MEASURING INSTRUMENTS
METALS
NUCLEAR MATERIALS MANAGEMENT
NUCLEAR MATERIALS POSSESSION
PERFORMANCE
PLUTONIUM ISOTOPES
PORTABLE EQUIPMENT
RADIATION DETECTORS
SELF-POWERED DETECTORS
SELF-POWERED GAMMA DETECTORS
URANIUM