Determination of gamma-ray-induced displacement rates
Conference
·
OSTI ID:6305706
To define the gamma-ray component of the radiation field in light water reactor (LWR) pressure vessel (PV) environments, gamma-ray spectrometry experiments were conducted in the low power PV mockup at the poolside critical assembly (PCA) at ORNL. Gamma-ray displacement rates can be calculated directly from absolute electron spectra observed with the Janus probe gamma-ray spectrometry. Gamma-ray displacement results are presented for the 1/4-T, 1/2-T, and 3/4-T locations of the 12/13 and 4/12 simulated surveillance capsule (SSC) configurations. In addition, the gamma-ray displacement rate at the SSC location was inferred using thermoluminescent dosimeter (TLD) gamma-ray dosimetry results obtained in the 4/12 SSC configuration at the PCA. Compared with neutron-induced displacement rates, the calculated gamma-ray-induced displacement rates are small at all these LWR-PV locations. The ratio of gamma-ray-induced to neutron-induced displacement rates never exceeds roughly 5 x 10 T.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 6305706
- Report Number(s):
- HEDL-SA-3533; CONF-8706134-1; ON: DE87010712
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
BWR TYPE REACTORS
CALCULATION METHODS
CONTAINERS
DATA
DISPLACEMENT RATES
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
EXPERIMENTAL REACTORS
GAMMA RADIATION
INFORMATION
IONIZING RADIATIONS
NUMERICAL DATA
ORNL-PCA REACTOR
PRESSURE VESSELS
PWR TYPE REACTORS
RADIATIONS
REACTOR SAFETY EXPERIMENTS
REACTORS
RESEARCH AND TEST REACTORS
THEORETICAL DATA
WATER COOLED REACTORS
WATER MODERATED REACTORS
ZERO POWER REACTORS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
BWR TYPE REACTORS
CALCULATION METHODS
CONTAINERS
DATA
DISPLACEMENT RATES
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
EXPERIMENTAL REACTORS
GAMMA RADIATION
INFORMATION
IONIZING RADIATIONS
NUMERICAL DATA
ORNL-PCA REACTOR
PRESSURE VESSELS
PWR TYPE REACTORS
RADIATIONS
REACTOR SAFETY EXPERIMENTS
REACTORS
RESEARCH AND TEST REACTORS
THEORETICAL DATA
WATER COOLED REACTORS
WATER MODERATED REACTORS
ZERO POWER REACTORS