Towards ultrasensitive isotope trace analysis {sup 41}Ca.

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An 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.

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12 pages

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Moore, I. D.; Bailey, K.; Lu, Z.-T.; Mueller, P.; O'Connor, T. P. & Young, L. May 6, 2002.

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Description

An 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.

Physical Description

12 pages

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  • (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

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  • Report No.: ANL/PHY/CP-106703
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 795046
  • Archival Resource Key: ark:/67531/metadc742677

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  • May 6, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 30, 2016, 4:47 p.m.

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Moore, I. D.; Bailey, K.; Lu, Z.-T.; Mueller, P.; O'Connor, T. P. & Young, L. Towards ultrasensitive isotope trace analysis {sup 41}Ca., article, May 6, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc742677/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.