University of Surrey

Test tubes in the lab Research in the ATI Dance Research

100 years of nuclear isomers - then and now.

Walker, Philip M. and Podolyak, Zsolt (2020) 100 years of nuclear isomers - then and now. Physica Scripta, 95 (4).

Walker+et+al_2019_Phys._Scr._10.1088_1402-4896_ab635d.pdf - Accepted version Manuscript
Available under License Creative Commons Attribution.

Download (878kB) | Preview


The suggestion that some atomic nuclei would be able to exist in more than one stable or metastable configuration was proposed by Soddy in 1917. Subsequently, the first experimental example of such an isomeric pair was reported by Hahn in 1921, in the form of two metastable states of 234Pa, then known as UZ and UX2. Nowadays, of the 3437 nuclides listed in the most recent NUBASE evaluation, 1318 have at least one metastable excited state with a half-life of 100 ns or longer. The present work reviews historical aspects of nuclear isomers, and the dfferent physical mechanisms that lead to their formation. Selected frontiers of contemporary isomer research are discussed, with an emphasis on remote regions of the nuclear landscape. Some possibilities for the electromagnetic manipulation of isomers are included.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
Walker, Philip
Date : 13 February 2020
Funders : Science and Technology Facilities Council
DOI : 10.1088/1402-4896/ab635d
Copyright Disclaimer : This Accepted Manuscript is © 2019 IOP Publishing Ltd. Accepted Manuscript is “the version of the article accepted for publication including all changes made as a result of the peer review process, and which may also include the addition to the article by IOP Publishing of a header, an article ID, a cover sheet and/or an 'Accepted Manuscript' watermark, but excluding any other editing, typesetting or other changes made by IOP Publishing and/or its licensors” This Accepted Manuscript is © 2019 IOP Publishing Ltd.
Additional Information : As the Version of Record of this article is going to be/has been published on a subscription basis, this Accepted Manuscript will be available for reuse under a CC BY-NC-ND 3.0 licence after a 12 month embargo period. Although reasonable endeavours have been taken to obtain all necessary permissions from third parties to include their copyrighted content within this article, their full citation and copyright line may not be present in this Accepted Manuscript version. Before using any content from this article, please refer to the Version of Record on IOPscience once published for full citation and copyright details, as permission may be required. All third party content is fully copyright protected, unless specifically stated otherwise in the figure caption of the Version of Record.
Depositing User : Diane Maxfield
Date Deposited : 24 Jan 2020 16:09
Last Modified : 19 Dec 2020 02:08

Actions (login required)

View Item View Item


Downloads per month over past year

Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800