Atomic vapor laser isotope separation of lead-210 isotope
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:
- Issue Date:
- 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
Citation Formats
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.
Web.
Scheibner, K F, Haynam, C A, Johnson, M A, & Worden, E F. Atomic vapor laser isotope separation of lead-210 isotope. United States.
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.
@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 = {Tue Aug 31 00:00:00 EDT 1999},
month = {Tue Aug 31 00:00:00 EDT 1999}
}