Eur. Phys. J. A (2017) 53: 24
https://doi.org/10.1140/epja/i2017-12215-8

Regular Article - Experimental Physics

In-beam study of ²⁵³No using the SAGE spectrometer

¹ Oliver Lodge Laboratory, University of Liverpool, L69 7ZE, Liverpool, UK
² University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014, Jyvaskyla, Finland
³ TRIUMF, University of British Columbia, V6T 2A3, Vancouver, British Columbia, Canada
⁴ CSNSM, CNRS, IN2P3, Université Paris-Sud, F-91405, Orsay, France
⁵ STFC, Daresbury Laboratory, WA4 4AD, Daresbury, Warrington, UK

^* e-mail: a.k.mistry@gsi.de

Received: 17 October 2016
Accepted: 26 January 2017
Published online: 14 February 2017

Abstract

The heavy actinide nucleus ²⁵³No (Z = 102) was studied using the (S)ilicon (A)nd (Ge)rmanium (SAGE) spectrometer allowing simultaneous in-beam -ray and conversion electron spectroscopy at the accelerator laboratory of the University of Jyväskylä. Using the recoil-tagging technique, -electron coincidences have allowed for the extension of the level scheme in the lower-spin region of the yrast band. In addition, internal conversion coefficient (ICC) measurements to establish the multipolarity of transitions have been performed. Measurement of the interband-intraband branching ratios supports the assignment of the Nilsson band-head configuration assigned in previous studies. The study shows the viability of combined in-beam electron and -ray spectroscopy down to μb cross sections.