Calibration of SSTR neutron dosimetry for TMI-2 applications
Application of neutron dosimetry for assessment of fuel distribution throughout the Three Mile Island-2 (TMI-2) reactor-core region and the primary-coolant system is advanced. Neutron dosimetry in the reactor cavity, i.e. the cavity between the pressure vessel and the biological shield, could provide data for the assessment of the core fuel distribution. A more immediate task entails locating and quantifying the amount of fuel debris in the ex-core primary coolant system; in the range of 1 to 1000 kg. Solid-state track-recorder (SSTR) neutron dosimetry is considered for such exploratory scoping experiments at TMI-2. The sensitivity of mica-/sup 235/U (asymptotically thick) SSTR has been ascertained for such environments. It has been demonstrated that the SSTR method has adequate sensitivity to properly respond and detect fuel quantities of the order of 1 kg in the ex-core primary coolant system. 21 figures.
- Research Organization:
- Hanford Engineering Development Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76FF02170
- OSTI ID:
- 6547521
- Report Number(s):
- HEDL-SA-2790; CONF-820762-1; ON: DE83004073
- Country of Publication:
- United States
- Language:
- English
Similar Records
Solid state track recorder neutron dosimetry measurements for fuel debris assessment of TMI-2 demineralizer-A
Applications of solid state track recorder neutron dosimetry for fuel debris location in the Three Mile Island Unit 2 reactor coolant system
Related Subjects
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
440102 -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCIDENTS
CALIBRATION
DIELECTRIC TRACK DETECTORS
DOSIMETRY
ENRICHED URANIUM REACTORS
MEASURING INSTRUMENTS
MICA
NEUTRON DOSIMETRY
POWER REACTORS
PWR TYPE REACTORS
RADIATION DETECTORS
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR CORE DISRUPTION
REACTOR CORES
REACTORS
THERMAL REACTORS
THREE MILE ISLAND-2 REACTOR
WATER COOLED REACTORS
WATER MODERATED REACTORS