Method for counting noble gas atoms with isotopic selectivity

Hurst, G. S.; Payne, M. G.; Kramer, S. D.; Chen, C. H.; Phillips, R. C.; Allman, S. L.; Alton, G. D.; Dabbs, J. W. T.; Willis, R. D.; Lehmann, B. E. (1985). Method for counting noble gas atoms with isotopic selectivity. Reports on progress in physics, 48(10), pp. 1333-1370. IOP Publishing 10.1088/0034-4885/48/10/001

[img] Text
G_S_Hurst_1985_Rep._Prog._Phys._48_1333.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (2MB) | Request a copy

A method has been developed for direct counting of noble gas atoms and has been demonstrated for selected isotopes of krypton. In principle, a few atoms of the noble gases argon, krypton, xenon and radon can now be counted with isotopic selectivity whether stable or radioactive. A concept was originated in which a laser method would be used to count noble gas atoms of a particular isotope that are moving freely in an enclosure. As the concept developed, a parallel with Maxwell's sorting demon became quite obvious since the plan was to sort out only atoms of a given type (Z selection), e.g. krypton atoms, from any other atom in the enclosure and then to sort the atom by isotope (A selection) before removing the atoms from the gas compartment. The plan was to count each atom as it was stored in a target until all atoms were counted.

Item Type:

Journal Article (Original Article)


08 Faculty of Science > Physics Institute > Climate and Environmental Physics

UniBE Contributor:

Lehmann, Bernhard


500 Science > 530 Physics




IOP Publishing




BORIS Import 2

Date Deposited:

11 Oct 2021 13:58

Last Modified:

11 Oct 2021 14:04

Publisher DOI:





Actions (login required)

Edit item Edit item
Provide Feedback