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Portable instrument for inspecting irradiated nuclear-fuel assemblies in a water-filled storage pond by measurement of induced Cerenkov radiation

Patent ·
OSTI ID:6382270
; ; ;
A portable instrument for measuring induced Cerenkov radiation associated with irradiated nuclear fuel assemblies in a water-filled storage pond is disclosed. The instrument includes a photomultiplier tube and an image intensifier which are operable in parallel and simultaneously by means of a field lens assembly and an associated beam splitter. The image intensifier permits an operator to aim and focus the apparatus on a submerged fuel assembly. Once the instrument is aimed and focused, an illumination reading can be obtained with the photomultiplier tube. The instrument includes a lens cap with a carbon-14/phosphor light source for calibrating the apparatus in the field.
DOE Contract Number:
W-7405-ENG-36
Assignee:
EDB-83-078204
Patent Number(s):
None
Application Number:
ON: DE83010480
OSTI ID:
6382270
Country of Publication:
United States
Language:
English

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Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHERENKOV COUNTERS
CHERENKOV RADIATION
ELECTROMAGNETIC RADIATION
FUEL ELEMENTS
FUEL POOLS
MEASURING INSTRUMENTS
PHOTOMULTIPLIERS
PHOTOTUBES
RADIATION DETECTORS
RADIATIONS
REACTOR COMPONENTS
SPENT FUEL ELEMENTS
SPENT FUEL STORAGE
STORAGE