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Title: Laser isotope separation of erbium and other isotopes

Laser isotope separation is accomplished using at least two photoionization pathways of an isotope simultaneously, where each pathway comprises two or more transition steps. This separation method has been applied to the selective photoionization of erbium isotopes, particularly for the enrichment of .sup.167 Er. The hyperfine structure of .sup.167 Er was used to find two three-step photoionization pathways having a common upper energy level.
 [1];  [2]
  1. (3035 Ferdale Ct., Pleasanton, CA 94566)
  2. (117 Vereda del Ciervo, Diablo, CA 94528)
Issue Date:
OSTI Identifier:
Haynam, Christopher A. (3035 Ferdale Ct., Pleasanton, CA 94566);Worden, Earl F. (117 Vereda del Ciervo, Diablo, CA 94528) LLNL
Patent Number(s):
US 5443702
Contract Number:
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
laser; isotope; separation; erbium; isotopes; accomplished; photoionization; pathways; simultaneously; pathway; comprises; transition; steps; method; applied; selective; particularly; enrichment; 167; hyperfine; structure; three-step; common; upper; energy; level; energy level; isotope separation; laser isotope; three-step photoionization; upper energy; separation method; selective photoionization; /204/252/376/