A NEUTRON REM COUNTER

Technical Report · Wed Jan 01 04:00:00 EST 1964

OSTI ID:4079749

Andersson, I O; Braun, J

A neutron detector is described which measures the neutron dose rate in rem/h independently of the energy of the neutrons from thermal to 15 Mev. The detector consists of a BF/sub 3/ proportional counter surrounded by a shield made of polyethylene and boron plastic that gives the appropriate amount of moderation and absorption to the impinging neutrons to obtain rem response. Two different versions were developed. One model can utilize standard BF counters and is suitable for use in installed monitors around reactors and accelerators and the other model is specially designed for use in a portable survey instrument. The neutron rem counter for portable instruments has a sensitivity of 2.4 cps/mrem/h and is essentially nondirectional in response. With correct bias setting the counter is insensitive to gamma exposure up to 200 r/h from Co/sup 60/. (auth)

• Research Organization: Aktiebolaget Atomenergi, Stockholm (Sweden)
• NSA Number: NSA-18-014195
• OSTI ID: 4079749
• Report Number(s): AE-132
• Country of Publication: Sweden
• Language: English

Related Subjects

ABSORPTION
ACCELERATORS
ARGON
BEAMS
BORON COMPOUNDS
BORON FLUORIDES
ENERGY
ENERGY LEVELS
ENERGY RANGE
ENVIRONMENT
EXCITATION
GAMMA RADIATION
IMPURITIES
INSTRUMENTATION
LUMINESCENCE
MEASURED VALUES
MERCURY
MONITORING
NEUTRON DETECTION
NITROGEN
POLYETHYLENES
POLYMERS
PROPORTIONAL COUNTERS
PULSES
RADIATION DOSES
RARE GASES
REACTORS
SENSITIVITY
SHIELDING
SLOWDOWN
SPECTRA
THERMAL NEUTRONS
XENON