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U.S. Department of Energy
Office of Scientific and Technical Information
 

AN ALPHA, BETA, GAMMA HAND AND SHOE COUNTER-MODEL II

Technical Report ·
OSTI ID:4314550
The combined alpha, beta, gamma hand and shoe counter uses alpha scintillation detectors and betagamma G. M. tube detectors. Total monitoring time per individual is 15 seconds. The alpha probe portion sensitivity is such that the instrument will indicate above warning level for a 250 d/m Pu nlpha source distributed over an area eight by four inches. The beta-gamma sensitivity is the same as for the Five-Fold; approximately twice warning level for a fifty millimicrocurie uranium nitrate source distributed over a similar area. There are five register readouts: alpha left hand, betagamma left hand, beta-gamma shoes, beta-gamma right hand, and alpha right hand. In addition to these, two separately operated cable-connected probes are attached to the instrument. These probes are activated separately from the main instrument, and each in turn drives a loudspeaker. One probe monitors clothing and shoes for alpha contamination, and it will detect spot alpha sources with activities as low as 100 d/m. The other probe is a single 1B85 metal-wall G. M. tube with a response similar to a standard portable G. M. This probe is used to monitor clothing, etc., for possible beta-gamma contamination. While one individual is using the main hand and shoe counter, a second may be using the cable-connected probes. Except for the supply of power, the cabled probes and speaker operate independently of the main instrument, and can be used for as long a time as necessary. (auth)
Research Organization:
General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
DOE Contract Number:
W-31-109-ENG-52
NSA Number:
NSA-12-012572
OSTI ID:
4314550
Report Number(s):
HW-54553
Country of Publication:
United States
Language:
English

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Related Subjects

ALPHA DETECTION
BETA DETECTION
CLOTHING
CONTAMINATION
COUNTERS
GAMMA DETECTION
GEIGER-MUELLER COUNTERS
INSTRUMENTS
MONITORING
PHYSICS
POLONIUM
RADIATION DOSES
RADIATION SOURCES
RECORDING SYSTEMS
SCINTILLATION COUNTERS
SENSITIVITY
URANIUM NITRATES