Nuclear Incident Monitor

Technical Report · Mon Jan 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/6316333· OSTI ID:6316333

Phillips, T. D. ^[1]

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1. Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.

This report describes an improved instrument to detect radiation that would be emitted by the accidental assembly of a critical mass of fissionable material. The instrument is a solid-state model designed to supersede a vacuum-tube-circuit model that has been in use for several years. The new instrument provides audible and visible alarms within 4 seconds after exposure to gamma radiation exceeding 1 R/hr. The instrument alarms within 0.3 second after exposure to a 50 microsecond burst of radiation that induces a dose of 0.6 mR.

• Research Organization: Du Pont de Nemours (E.I.) and Co., Aiken, SC (United States). Savannah River Lab.
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• DOE Contract Number: EY-76-C-09-0001
• OSTI ID: 6316333
• Report Number(s): DP--1501
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALARM SYSTEMS
Alarm
CRITICALITY
DESIGN
DETECTION
GAMMA DETECTION
Gamma
IONIZATION CHAMBERS
MEASURING INSTRUMENTS
Nuclear Criticality Safety Program (NCSP)
PERFORMANCE
RADIATION DETECTION
RADIATION DETECTORS
RADIATION MONITORS