Pocket neutron REM meter

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6794237

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

This paper describes a pocket-calculator-sized, neutron-sensitive, REM-responding personnel dosimeter that uses three tissue-equivalent 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. The user can display any one of these items or a channel number (an aid in calibration) at any time. Such data are provided with a precision of +- 3% for a total exposure of 1 mREM over eight hours.

• Research Organization: EG and G, Inc., Goleta, CA (USA)
• DOE Contract Number: AC08-76NV01183
• OSTI ID: 6794237
• Report Number(s): CONF-821011-2; ON: DE83001184
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ANALOG-TO-DIGITAL CONVERTERS
COMPUTERS
DESIGN
DIGITAL CIRCUITS
DOSIMETRY
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ENERGY TRANSFER
EQUIPMENT
LET
MEASURING INSTRUMENTS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
MINIATURIZATION
MOS TRANSISTORS
NEUTRON DOSIMETRY
PERSONNEL DOSIMETRY
PROPORTIONAL COUNTERS
RADIATION DETECTORS
SEMICONDUCTOR DEVICES
TISSUE-EQUIVALENT DETECTORS
TRANSISTORS