Lifetimes in {sup 161}Lu measured with recoil distance method

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Bulletin of the American Physical Society

OSTI ID:243785

Yu, C H; Lewis, J M; Riedinger, L L ^[1]

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1. and others

High spin states of {sup 161}Lu are populated using the {sup 120}Sn({sup 45}Sc,4n){sup 161}Lu reaction with a 205 MeV {sup 45}Sc beam provided by the Oak Ridge National Lab. A plunger was used to stop the recoils at various distances and the {gamma}-rays were detected by the compact array of 20 Compton-suppressed Ge detectors of 17, 30, 60, 85, 140, 210, and 320 micrometers. These data are being analyzed in order to extract lifetimes. High spin lifetimes in the {pi}h{sub 11/12}, 9/2[514] band of {sup 161}Lu were previously measured with DSAM technique. Large energy signature splitting was observed in the low spin portion of this band, which has been interpreted as the evidence for triaxiality and small quadrupole deformation. The authors measured lifetimes at low spin will be helpful for the verification of this prediction.

• DOE Contract Number: FG05-87ER40361; AC05-84OR21400
• OSTI ID: 243785
• Report Number(s): CONF-9304297--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HIGH SPIN STATES
LIFETIME
LUTETIUM 161
MEV RANGE 100-1000
NEUTRONS
SCANDIUM 45 REACTIONS
TIN 120 TARGET