Pocket neutron REM meter

Conference · Thu Jan 01 04:00:00 EST 1981

OSTI ID:5253336

Quam, W; Del Duca, T; Plake, W; Graves, G; DeVore, T

A pocket-calculator-sized, neutron-sensitive, REM-responding personnel dosimeter is described that uses two tissue-equivelent cylindrical proportional counters as neutron-sensitive detectors. These are conventionally called Linear Energy Transfer (LET) counters. Miniaturized hybrid circuits are used for the linear pulse handling electronics, followed by a 256-channel ADC. A CMOS microprocessor is used to calculate REM exposure from the basic rads-tissue data supplied by the LET counters and also to provide timing and display functions. The instrument is used to continuously accumulate time in hours since reset, total counts accumulated, rads-tissue, and REM. At any time the user can display any one of these items or a channel number (an aid in calibration). The instrument provides such data with a precision of +-3% for a total exposure of 1 mREM over 8 hours.

• Research Organization: EG and G, Inc., Goleta, CA (USA)
• DOE Contract Number: AC08-76NV01183
• OSTI ID: 5253336
• Report Number(s): CONF-811012-63; ON: DE82017675
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
ANALOG-TO-DIGITAL CONVERTERS
COMPUTERS
DOSIMETRY
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ENERGY TRANSFER
EQUIPMENT
LET
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
NEUTRON DOSIMETRY
PERSONNEL DOSIMETRY
PROPORTIONAL COUNTERS
PULSE CIRCUITS
RADIATION DETECTORS
SENSITIVITY
TIME MEASUREMENT
TISSUE-EQUIVALENT DETECTORS