Light water reactor pressure vessel surveillance using reactor cavity solid state track recorder neutron dosimetry
Solid State Track Recorder (SSTR) Neutron Dosimeters have been developed for use in power reactors to provide information on the cumulative neutron dose received by the reactor pressure vessel during operation. The accumulation of neutron dose by the pressure vessel results in radiation damage in the form of steel embrittlement. In order to ascertain the safe operating lifetime of the reactor pressure vessel, the results of dosimeter measurements are evaluated and used to estimate the extent of radiation damage. Among the requirements for SSTR neutron dosimetry are high accuracy and ability to provide useful data at high neutron fluences. To this end, ultra low-mass fissionable deposit preparation techniques have been developed, and the absolute accuracies of the measurements have been maintained at the 3 to 5% level. The status of the deployment of SSTR dosimetry capsules in the reactor cavity region of operating power reactors will be summarized.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 6435166
- Report Number(s):
- HEDL-SA-3317; CONF-850933-12; ON: DE87010724
- Country of Publication:
- United States
- Language:
- English
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210100 -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CONTAINERS
DIELECTRIC TRACK DETECTORS
DOSIMETRY
MEASURING INSTRUMENTS
MICA
NEUTRON DOSIMETRY
NEUTRON FLUENCE
PRESSURE VESSELS
RADIATION DETECTORS
REACTORS
SURVEILLANCE
WATER COOLED REACTORS