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Proceedings Paper

Optimizing capture efficiency in a magneto-optical trap
Author(s): Michelle Stephens; Carl E. Wieman; K. Corwin; Zheng-Tian Lu; H. Gould; T. Dinneen
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Paper Abstract

We have studied the user of vapor-cell magneto-optical traps for the collection and investigation of trace elements of radioactive isotopes. The fundamental processes governing efficient collection of neutral isotopes in a trap have been identified and integrated into a model that accurately describes the collection process. The model has been verified experimentally; a 6% capture efficiency has been demonstrated for stable Cs isotopes and we predict a simple change in trapping cell geometry will allow a 50% capture efficiency. This paper discussed the issues involved in efficient capture, such as the trapping laser properties and wall-coatings. It describes a new cell design for efficient capture and discusses current work towards trapping small numbers of 221Fr (T1/2 equals 4.8 minutes) atoms.

Paper Details

Date Published: 7 April 1995
PDF: 8 pages
Proc. SPIE 2385, Advanced Optical Methods for Ultrasensitive Detection, (7 April 1995); doi: 10.1117/12.206446
Show Author Affiliations
Michelle Stephens, Univ. of Colorado/Boulder (United States)
Carl E. Wieman, Univ. of Colorado/Boulder (United States)
K. Corwin, Univ. of Colorado/Boulder (United States)
Zheng-Tian Lu, Univ. of Colorado/Boulder (United States)
H. Gould, Univ. of California/Berkeley (United States)
T. Dinneen, Univ. of California/Berkeley (United States)

Published in SPIE Proceedings Vol. 2385:
Advanced Optical Methods for Ultrasensitive Detection
Bryan L. Fearey, Editor(s)

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