FUEL ELEMENT CONSTRUCTION

Title: FUEL ELEMENT CONSTRUCTION

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Abstract

Fuel elements having a solid core of fissionable material encased in a cladding material are described. A conversion material is provided within the cladding to react with the fission products to form stable, relatively non- volatile compounds thereby minimizing the migration of the fission products into the coolant. The conversion material is preferably a metallic fluoride, such as lead difluoride, and may be in the form of a coating on the fuel core or interior of the cladding, or dispersed within the fuel core. (AEC)

Inventors:: Zumwalt, L.R.

Issue Date:: 1961-08-01

Research Org.:: Originating Research Org. not identified

OSTI Identifier:: 4014987

Patent Number(s):: 2994656

Assignee:: U.S. Atomic Energy Commission DTIE; NSA-15-025616

NSA Number:: NSA-15-025616

Resource Type:: Patent

Resource Relation:: Other Information: Orig. Receipt Date: 31-DEC-61

Country of Publication:: United States

Language:: English

Subject:: REACTOR TECHNOLOGY; CHEMICAL REACTIONS; COATING; CONFIGURATION; DIFFUSION; DISPERSIONS; FISSION PRODUCTS; FLUORIDES; FUEL CANS; FUEL ELEMENTS; LEAD COMPOUNDS; PATENT; REACTORS; VOLATILITY

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                    Zumwalt, L.R. FUEL ELEMENT CONSTRUCTION.  United States: N. p., 1961. 
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                    Zumwalt, L.R. FUEL ELEMENT CONSTRUCTION.  United States.

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                    Zumwalt, L.R. Tue .  
        "FUEL ELEMENT CONSTRUCTION".  United States.

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@article{osti_4014987,

  title        = {FUEL ELEMENT CONSTRUCTION},

  author       = {Zumwalt, L.R.},

  abstractNote = {Fuel elements having a solid core of fissionable material encased in a cladding material are described. A conversion material is provided within the cladding to react with the fission products to form stable, relatively non- volatile compounds thereby minimizing the migration of the fission products into the coolant. The conversion material is preferably a metallic fluoride, such as lead difluoride, and may be in the form of a coating on the fuel core or interior of the cladding, or dispersed within the fuel core. (AEC)},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1961},

  month        = {8}

}

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A method of preventing diffusible and volatile fission products from diffusing through a fuel element container and contaminating reactor coolant is described. More specifically, relatively volatile and diffusible fission products either are adsorbed by or react with magnesium fluoride or difluoride to form stable, less volatile, less diffusible forms. The magnesium fluoride or difluoride is disposed anywhere inwardly from the outer surface of the fuel element container in order to be contacted by the fission products before they reach and contaminate the reactor coolant. (AEC)
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