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

Nicholson, N; Dowdy, E J; Holt, D M; Stump, C J

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

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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:: Nicholson, N; Dowdy, E J; Holt, D M; Stump, Jr, C J

Issue Date:: 1982-05-13

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

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                    Nicholson, N, Dowdy, E J, Holt, D M, and Stump, Jr, C J. 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. 
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                    Nicholson, N, Dowdy, E J, Holt, D M, & Stump, Jr, C J. Portable instrument for inspecting irradiated nuclear-fuel assemblies in a water-filled storage pond by measurement of induced Cerenkov radiation.  United States.

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                    Nicholson, N, Dowdy, E J, Holt, D M, and Stump, Jr, C J. Thu .  
        "Portable instrument for inspecting irradiated nuclear-fuel assemblies in a water-filled storage pond by measurement of induced Cerenkov radiation".  United States.

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@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, Jr, C J},

  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}

}

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