Analysis of hydrogen isotope mixtures

Title: Analysis of hydrogen isotope mixtures

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Abstract

An apparatus and method for determining the concentrations of hydrogen isotopes in a sample. Hydrogen in the sample is separated from other elements using a filter selectively permeable to hydrogen. Then the hydrogen is condensed onto a cold finger or cryopump. The cold finger is rotated as pulsed laser energy vaporizes a portion of the condensed hydrogen, forming a packet of molecular hydrogen. The desorbed hydrogen is ionized and admitted into a mass spectrometer for analysis.

Inventors:

Villa-Aleman, Eliel ^[1]

Aiken, SC

Issue Date:: 1994-01-01

Research Org.:: Savannah River Site (SRS), Aiken, SC (United States)

OSTI Identifier:: 869278

Patent Number(s):: 5308979

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J49/0422 - {for gaseous samples
H01J49/0463 - {Desorption by laser or particle beam, followed by ionisation as a separate step
H01J49/162 - {Direct photo-ionisation, e.g. single photon or multi-photon ionisation}

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DOE Contract Number:: AC09-89SR18035

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: analysis; hydrogen; isotope; mixtures; apparatus; method; determining; concentrations; isotopes; sample; separated; elements; filter; selectively; permeable; condensed; cold; finger; cryopump; rotated; pulsed; laser; energy; vaporizes; portion; forming; packet; molecular; desorbed; ionized; admitted; mass; spectrometer; molecular hydrogen; hydrogen isotope; mass spectrometer; pulsed laser; laser energy; hydrogen isotopes; cold finger; selectively permeable; /250/

Citation Formats


                    Villa-Aleman, Eliel. Analysis of hydrogen isotope mixtures.  United States: N. p., 1994. 
        Web.

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                    Villa-Aleman, Eliel. Analysis of hydrogen isotope mixtures.  United States.

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                    Villa-Aleman, Eliel. Sat .  
        "Analysis of hydrogen isotope mixtures".  United States.  https://www.osti.gov/servlets/purl/869278.

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@article{osti_869278,

  title        = {Analysis of hydrogen isotope mixtures},

  author       = {Villa-Aleman, Eliel},

  abstractNote = {An apparatus and method for determining the concentrations of hydrogen isotopes in a sample. Hydrogen in the sample is separated from other elements using a filter selectively permeable to hydrogen. Then the hydrogen is condensed onto a cold finger or cryopump. The cold finger is rotated as pulsed laser energy vaporizes a portion of the condensed hydrogen, forming a packet of molecular hydrogen. The desorbed hydrogen is ionized and admitted into a mass spectrometer for analysis.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1994},

  month        = {1}

}

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