In-beam spectroscopy of 254No

Journal Article · Wed Apr 26 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2200977· OSTI ID:20798588

Eeckhaudt, S; Grahn, T; Greenlees, P T; Jones, P; Julin, R; Juutinen, S; Kettunen, H; Leino, M; Leppaenen, A -P; Nieminen, P; Pakarinen, J; Perkowski, J; Rahkila, P; Scholey, C; Uusitalo, J; Vel, K van de ^[1]; Amzal, N; Bastin, J E; Butler, P A; Herzberg, R -D ^[2]

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1. Department of Physics, University of Jyvaeskylae (Finland)
2. Oliver Lodge Laboratory, University of Liverpool (United Kingdom)

Evidence for the presence of non-yrast states in 254No has been observed in two different in-beam experiments carried out at the University of Jyvaeskylae. Firstly an in-beam conversion electron spectroscopic study was performed with the SACRED spectrometer, revealing a distribution consisting of high-multiplicity electron cascades. This provides an indirect proof of the presence of high K-bands in 254No. In a more recent in-beam {gamma}-ray spectroscopic measurement, evidence for the decay of non-yrast states in 254No has been observed for the first time. It is speculated that the observation of high-energy {gamma} rays is due to the decay of a K = 3 band-head state.

• OSTI ID: 20798588
• Journal Information: AIP Conference Proceedings, Vol. 831, Issue 1; Conference: International conference on frontiers in nuclear structure, astrophysics, and reactions - FINUSTAR, Isle of Kos (Greece), 12-17 Sep 2005; Other Information: DOI: 10.1063/1.2200977; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CONVERSION
DISTRIBUTION
ELECTRONS
ENERGY-LEVEL TRANSITIONS
GAMMA RADIATION
GAMMA SPECTROSCOPY
IN-BEAM SPECTROSCOPY
MULTIPLICITY
NOBELIUM 254
NUCLEAR DECAY
YRAST STATES