Resonance ionization spectroscopy and the detection of 81Kr

Thonnard, N.; Willis, R.D.; Wright, M.C.; Davis, W.A.; Lehmann, B.E. (1987). Resonance ionization spectroscopy and the detection of 81Kr. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 29(1-2), pp. 398-406. Elsevier 10.1016/0168-583X(87)90273-4

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Development of resonance ionization spectroscopy (RIS) has made the concept of single-atom counting, whether radioactive or stable, practical for most elements of the periodic table. Tunable narrow-band lasers are used to efficiently and selectively excite and ionize a chosen element without interference from the much more abundant background, thereby achieving sensitivity at the level of a few atoms. Applications of the selectivity and sensitivity of RIS are numerous, including the direct analysis of solid, chemically processed liquid and noble gas samples. For example, 81Kr, a 2.1 × 105 year half-life cosmogenic radioisotope was detected with less than 400 81Kr atoms in the RIS analysis system.

Item Type:

Journal Article (Original Article)

Division/Institute:

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

UniBE Contributor:

Lehmann, Bernhard

Subjects:

500 Science > 530 Physics

ISSN:

0168-583X

Publisher:

Elsevier

Language:

English

Submitter:

BORIS Import 2

Date Deposited:

16 Sep 2021 14:21

Last Modified:

05 Dec 2022 15:52

Publisher DOI:

10.1016/0168-583X(87)90273-4

URI:

https://boris.unibe.ch/id/eprint/158487

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