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Title Towards ultrasensitive isotope trace analysis {sup 41}Ca.
Creator/Author Moore, I. D. ; Bailey, K. ; Lu, Z.-T. ; Mueller, P. ; O'Connor, T. P. ; Young, L.
Publication Date2002 May 06
OSTI IdentifierOSTI ID: 795046
Report Number(s)ANL/PHY/CP-106703
DOE Contract NumberW-31-109-ENG-38
Other Number(s)TRN: US200211%%98
Resource TypeConference
Resource RelationConference: (EMIS-14) 14th International Conference on Electromagnetic Isotope Separators and Techniques Related to Their Applications, Victoria, British Columbia (CA), 05/06/2002--05/10/2002; Other Information: PBD: 6 May 2002
Research OrgArgonne National Lab., IL (US)
Sponsoring OrgUS Department of Energy (US)
Subject38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; CALCIUM 41; ISOTOPE RATIO; CALCIUM 40; ENVIRONMENTAL MATERIALS; ELECTROMAGNETIC ISOTOPE SEPARATORS
Description/AbstractAn Atom Trap Trace Analysis (ATTA) system based on the technique of laser manipulation of neutral atoms is being developed to count individual {sup 41}Ca atoms present in natural samples with an isotopic abundance of 10{sup -15}. Trapping of all stable calcium isotopes has been demonstrated and single-atom counting has been realized. For the most abundant isotope, {sup 40}Ca (97% isotopic abundance), a magneto-optical trap (MOT) loading rate of 2 x 10{sup 10} atoms/s has been reached at the overall capture efficiency of 1 x 10{sup -4}. System improvements could increase the efficiency by at least an order of magnitude.
Country of PublicationUnited States
LanguageEnglish
FormatMedium: ED; Size: 12 pages
System Entry Date2008 Feb 05
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