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Title: Atom trap trace analysis of krypton isotopes

A new method of ultrasensitive isotope trace analysis has been developed. This method, based on the technique of laser manipulation of neutral atoms, has been used to count individual {sup 85}Kr and {sup 81}Kr atoms present in a natural krypton gas sample with isotopic abundances in the range of 10{sup {minus}11} and 10{sup {minus}13}, respectively. This method is free of contamination from other isotopes and elements and can be applied to several different isotope tracers for a wide range of applications. The demonstrated detection efficiency is 1 x 10{sup {minus}7}. System improvements could increase the efficiency by many orders of magnitude.
Authors:
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Publication Date:
OSTI Identifier:
750596
Report Number(s):
ANL/PHY/CP-100527
TRN: US0003346
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 7th Symposium of Laser Spectroscopy, Taejon (KR), 11/05/1999--11/06/1999; Other Information: PBD: 17 Nov 1999
Research Org:
Argonne National Lab., IL (US)
Sponsoring Org:
US Department of Energy (US)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; KRYPTON 81; KRYPTON 85; ISOTOPE RATIO; LASER SPECTROSCOPY; TRAPS; TRACE AMOUNTS