JYFL-ACCLAB-JR164 Prompt and delayed spectroscopy of N = 120 nuclei 207Fr and 209Ac

Ministry of Culture and Education 2026 Dataset Open access

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Authors: Kalle Auranen, Henna Kokkonen, Philson-Amanda Aden, Jasmiina Ahokas, V. Bogdanoff, T. Grahn, Paul T. Greenlees, Rauno Julin, H. Jutila, H. Joukainen, J. Louko, J. Pakarinen
+9 more P. Rahkila, P. Ruotsalainen, J. Sarén, E. Uusikylä, Juha Uusitalo, Andrew D. Briscoe, Adam McCarter, John Chadderton, Norah Al Wadie
DOI: 10.23729/23c53d54-5c10-4219-8ed2-ebb57c6a56e5
Cited by: 1

Abstract

Objectives(less than 250 words): Detect and identify the low-lying excited states and possible isomeric states of N = 120 nuclei 207Fr, 209Ac. 176Yb(37Cl,6n)207Fr, until monday and 180Hg(35Cl,6n)209Ac after that. Achievements (less than 250 words): Experiment was very successful. We managed to collect sufficient amount of statistics for both nuclei. We collected enough 207Fr data for gamma gamma, even gamma-gamma-gamma cube analysis. Similarly, the 209Ac was collected successfully, 3400 recoil-correlated alpha decays were collected, which is sufficient for recoil-decay tagged gamma-ray singles spectrum. In the Ac data there is a previously unknown isomer state, which we do have some idea where it comes from.

Publication details

Journal / source
Ministry of Culture and Education
Publication date
19 January 2026
Document type
Dataset