Citation
Cy. Chen et al., Ultrasensitive isotope trace analyses with a magneto-optical trap, SCIENCE, 286(5442), 1999, pp. 1139-1141
Citations number
32
Categorie Soggetti
Multidisciplinary,Multidisciplinary,Multidisciplinary
Journal title
SCIENCE
ISSN journal
00368075
→ ACNP
Volume
286
Issue
5442
Year of publication
1999
Pages
1139 - 1141
Database
ISI
SICI code
0036-8075(19991105)286:5442<1139:UITAWA>2.0.ZU;2-A
Abstract
Laser manipulation of neutral atoms has been used to count individual krypt
on-85 and krypton-81 atoms present in a natural krypton gas sample with iso
topic abundances in the range of 10(-11) and 10(-13), respectively. This me
thod of isotope trace analysis 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 1
0(-7). System improvements could increase the efficiency by many orders of
magnitude.