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

Abstract

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.

Inventors:
; ; ;
Issue Date:
OSTI Identifier:
6382270
Application Number:
ON: DE83010480
Assignee:
EDB-83-078204
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CHERENKOV COUNTERS; PHOTOMULTIPLIERS; FUEL POOLS; SPENT FUEL ELEMENTS; CHERENKOV RADIATION; SPENT FUEL STORAGE; ELECTROMAGNETIC RADIATION; FUEL ELEMENTS; MEASURING INSTRUMENTS; PHOTOTUBES; RADIATION DETECTORS; RADIATIONS; REACTOR COMPONENTS; STORAGE; 440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments

Citation Formats

Nicholson, N., Dowdy, E.J., Holt, D.M., and Stump, C.J. Jr. Portable instrument for inspecting irradiated nuclear-fuel assemblies in a water-filled storage pond by measurement of induced Cerenkov radiation. United States: N. p., 1982. Web.
Nicholson, N., Dowdy, E.J., Holt, D.M., & Stump, C.J. Jr. Portable instrument for inspecting irradiated nuclear-fuel assemblies in a water-filled storage pond by measurement of induced Cerenkov radiation. United States.
Nicholson, N., Dowdy, E.J., Holt, D.M., and Stump, C.J. Jr. Thu . "Portable instrument for inspecting irradiated nuclear-fuel assemblies in a water-filled storage pond by measurement of induced Cerenkov radiation". United States.
@article{osti_6382270,
title = {Portable instrument for inspecting irradiated nuclear-fuel assemblies in a water-filled storage pond by measurement of induced Cerenkov radiation},
author = {Nicholson, N. and Dowdy, E.J. and Holt, D.M. and Stump, C.J. Jr.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {5}
}