Improvements in VAMCIS: A 1E on-line monitoring system for continuous measurement of steam generator leak rates
Conference
·
· Transactions of the American Nuclear Society; (United States)
OSTI ID:5374435
- Electricite de France, Villeurbanne (France)
- Electricite de France, Saint-Denis (France)
- Merlin Gerin Provence, Senas (France)
The VAMCIS system has been jointly developed by Electricite de France (EdF) and the French manufacturer Merlin-Gerin Provence (MGP) for 4 yr. The continuous monitoring of the {sup 16}N activity within steam enables proper assessment of leak rates inside pressurized water reactor (PWR) steam generators (SGs). The VAMCIS system includes three main components: (1) sodium iodine sensor, coupled with its photomultiplier, (2) electrical cabinet, which provides the output signal spectral analysis, and (3) digital rate meters with software to transform the gross count rates into leak rate physical units. The paper discusses the implementation 1E-K3, and operational feedback. VAMCIS is now available in a large number of PWRs all over the world.
- OSTI ID:
- 5374435
- Report Number(s):
- CONF-891103--
- Conference Information:
- Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 60
- Country of Publication:
- United States
- Language:
- English
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Light-Water Moderated
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AGING
ALARM SYSTEMS
BETA DECAY RADIOISOTOPES
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BOILERS
COMPUTER CODES
CONTROL ROOMS
FAILURES
FISSION PRODUCT RELEASE
IMPLEMENTATION
INSTALLATION
ISOTOPES
LEAKS
LIGHT NUCLEI
MEASURING INSTRUMENTS
NAI DETECTORS
NITROGEN 16
NITROGEN ISOTOPES
NUCLEI
ODD-ODD NUCLEI
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PHOTOMULTIPLIERS
PHOTOTUBES
PWR TYPE REACTORS
RADIATION DETECTORS
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REACTOR MONITORING SYSTEMS
REACTOR OPERATION
REACTOR SAFETY
REACTORS
RELIABILITY
RETROFITTING
RUPTURES
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SCINTILLATION COUNTERS
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