# Isomeric States in the Light Tc Isotopes

Abstract : Preliminary results from the first experiment of the Stopped Beam RISING campaign are presented. The relativistic projectile fragmentation of a 750 MeV/u beam of 107Ag populated isomeric states in very neutron deficient nuclei at the proton dripline around mass 80–90. Nuclei were unambiguously identified using the FRagment Separator (FRS) and its ancillary detectors located at GSI. The ions produced were slowed down from relativistic energies by means of an Al degrader and implanted in the centre of the high-efficiency Stopped RISING array. This allowed the identification of new excited states in the N = Z = 43 nucleus, $^{86}$Tc, populated following the de-excitation of a microsecond isomer. Preliminary results of this analysis, as well as previously unobserved isomeric states in$^{ 87,88}$Tc, are reported.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00290059
Contributor : Pascale Chambon <>
Submitted on : Tuesday, June 24, 2008 - 3:29:30 PM
Last modification on : Monday, November 25, 2019 - 2:10:04 PM

### Identifiers

• HAL Id : in2p3-00290059, version 1

### Citation

A.B. Garnsworthy, P.H. Regan, S. Piétri, D. Rudolph, L. Caceres, et al.. Isomeric States in the Light Tc Isotopes. Acta Physica Polonica B, Jagellonian University, Cracow, 2007, 38, pp.1265-1269. ⟨in2p3-00290059⟩

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