A new device for combined Coulomb excitation and isomeric conversion electron spectroscopy with fast fragmentation beams - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Year : 2008

A new device for combined Coulomb excitation and isomeric conversion electron spectroscopy with fast fragmentation beams

S.P. Fox
  • Function : Author
G. Georgiev
J. Iwanicki
  • Function : Author
P. Joshi
  • Function : Author

Abstract

A new setup has been designed to perform Coulomb excitation experiments with fragmentation beams at intermediate energy and to measure at the same time conversion electrons from isomeric states populated in the fragmentation reaction. The newly designed setup is described and experimental results from a first experiment are shown. Radioactive even-even nuclei in the mass region A ≃ 70 close to the N = Z line were Coulomb excited after fragmentation of an intense primary $^{78}$Kr beam and selection in flight with the LISE3 spectrometer at GANIL. The rays emitted after Coulomb excitation were detected in an array of four large segmented HPGe clover detectors in a very close geometry. The scattered ions were identified in a stack of highly segmented annular silicon detectors combined with a time-of-flight measurement using beam tracking detectors. Conversion electrons from isomeric $0^+_2$ states decaying via electric monopole transitions were detected in an array of segmented cooled silicon detectors surrounding a telescope of plastic scintillators. Reduced transitions probabilities B(E2; $0^+_1$ → $2^+_1$ ) were deduced for several stable and radioactive nuclei.
Fichier principal
Vignette du fichier
dapnia-07-102.pdf (612.46 Ko) Télécharger le fichier
Origin Files produced by the author(s)
Loading...

Dates and versions

in2p3-00189007 , version 1 (19-11-2007)

Identifiers

Cite

E. Clément, A. Görgen, W. Korten, A. Bürger, A. Chatillon, et al.. A new device for combined Coulomb excitation and isomeric conversion electron spectroscopy with fast fragmentation beams. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2008, 587, pp.292-299. ⟨10.1016/j.nima.2008.01.059⟩. ⟨in2p3-00189007⟩
20 View
87 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More