Rapid measurement of the gaseous {sup 41}Ar released from a nuclear reactor

Journal Article · Tue Dec 31 04:00:00 EST 1996 · Transactions of the American Nuclear Society

OSTI ID:436805

Chung, Chien; Chen, Chen-Yi ^[1]; Lee, Cheng-Jong ^[2]

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1. National Tsing Hua Univ., Hsinchu (Taiwan, Province of China)
2. Taiwan Power Company, Taipei (Taiwan, Province of China)

A method of monitoring in situ the dose rate contributed from the gaseous radionuclide {sup 41}Ar was developed using a portable gamma-ray spectrometer. The instrument was immersed in a sealed chamber filled with {sup 41}Ar to determine the calibration factor for the dose rate converted from the photopeak count rate. The calibrated spectrometer was applied in situ to measure the noble gas {sup 41}Ar dose rate both inside and outside the containment of a research reactor operating at full power. The continuously monitored dose rate from {sup 41}Ar was contour-mapped around the nuclear reactor facility, and the nonuniform distribution of {sup 41}Ar was correlated with the prevailing diffusion as well as dispersion conditions.

• OSTI ID: 436805
• Report Number(s): CONF-9606116--
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Vol. 74; ISSN TANSAO; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
ARGON 41
CALIBRATION
DIFFUSION
DOSE RATES
EMISSION
HIGH-PURITY GE DETECTORS
RADIATION MONITORING
THOR REACTOR