Atomic vapor laser isotope separation of lead-210 isotope

Scheibner, K F; Haynam, C A; Johnson, M A; Worden, E F

Title: Atomic vapor laser isotope separation of lead-210 isotope

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Abstract

An isotopically selective laser process and apparatus for removal of Pb-210 from natural lead that involves a one-photon near-resonant, two-photon resonant excitation of one or more Rydberg levels, followed by field ionization and then electrostatic extraction. The wavelength to the near-resonant intermediate state is counter propagated with respect to the second wavelength required to populate the final Rydberg state. This scheme takes advantage of the large first excited state cross section, and only modest laser fluences are required. The non-resonant process helps to avoid two problems: first, stimulated Raman Gain due to the nearby F=3/2 hyperfine component of Pb-207 and, second, direct absorption of the first transition process light by Pb-207. 5 figs.

Inventors:: Scheibner, K F; Haynam, C A; Johnson, M A; Worden, E F

Issue Date:: 1999-08-31

Research Org.:: Univ. of California (United States)

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 678591

Patent Number(s):: 5945649

Application Number:: PAN: 8-863,383; TRN: 99:009175

Assignee:: United States Enrichment Corp., Bethesda, MD (United States)

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 31 Aug 1999

Country of Publication:: United States

Language:: English

Subject:: 07 ISOTOPE AND RADIATION SOURCE TECHNOLOGY; LEAD 210; LASER ISOTOPE SEPARATION; EXCITATION; RYDBERG STATES; DESIGN

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                    Scheibner, K F, Haynam, C A, Johnson, M A, and Worden, E F. Atomic vapor laser isotope separation of lead-210 isotope.  United States: N. p., 1999. 
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                    Scheibner, K F, Haynam, C A, Johnson, M A, & Worden, E F. Atomic vapor laser isotope separation of lead-210 isotope.  United States.

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                    Scheibner, K F, Haynam, C A, Johnson, M A, and Worden, E F. Tue .  
        "Atomic vapor laser isotope separation of lead-210 isotope".  United States.

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@article{osti_678591,

  title        = {Atomic vapor laser isotope separation of lead-210 isotope},

  author       = {Scheibner, K F and Haynam, C A and Johnson, M A and Worden, E F},

  abstractNote = {An isotopically selective laser process and apparatus for removal of Pb-210 from natural lead that involves a one-photon near-resonant, two-photon resonant excitation of one or more Rydberg levels, followed by field ionization and then electrostatic extraction. The wavelength to the near-resonant intermediate state is counter propagated with respect to the second wavelength required to populate the final Rydberg state. This scheme takes advantage of the large first excited state cross section, and only modest laser fluences are required. The non-resonant process helps to avoid two problems: first, stimulated Raman Gain due to the nearby F=3/2 hyperfine component of Pb-207 and, second, direct absorption of the first transition process light by Pb-207. 5 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1999},

  month        = {8}

}

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