The use of EXOGAM for in-beam spectroscopy of proton drip-line nuclei with radioactive ion beams

M. Petri (1) , E.S. Paul (1) , P.J. Nolan (1) , A.J. Boston (1) , H.C. Boston (1) , R.J. Cooper (1) , M.R. Dimmock (1) , S. Gros (1) , B.M. Mcguirk (1) , G. Turk (1) , D. Guinet (2) , Ph. Lautesse (2) , M. Meyer (2) , N. Redon (2) , B. Rosse (2) , Ch. Schmitt (2) , O. Stezowski (2) , S. Bhattacharyya (3) , G. de France (3) , G. Mukherjee (3) , F. Rejmund (3) , H. Savajols (3) , J.N. Scheurer (4) , J. Gal (5) , B.M. Nyako (5) , L. Zolnai (5) , K. Juhasz (6) , A. Astier (7) , I. Deloncle (7) , M.G. Porquet (7) , A. Prevost (7) , V.F.E. Pucknell (8) , R. Wadsworth (9) , P. Joshi (9) , G. Larana (10) , R. Moro (10) , M. Trotta (10) , E. Vardaci (10) , G. Hackman (11) , G.C. Ball (11)

1 Oliver Lodge Laboratory
2 IPNL - Institut de Physique Nucléaire de Lyon
3 GANIL - Grand Accélérateur National d'Ions Lourds
4 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
5 Institute for Nuclear Research and Nuclear Energy
6 Department of Information Technology
7 CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
8 STFC Daresbury Laboratory
9 Department of Physics
10 INFN, Sezione di Napoli - Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
11 TRIUMF [Vancouver]

One of the first fusion–evaporation experiments using radioactive ion beams was performed at GANIL in order to study proton-rich nuclei of the light rare-earth region. The low production cross-section of the exotic species of interest, in combination with the low intensity of the beam and its induced background, demanded the use of a highly efficient experimental setup. This consisted of the EXOGAM γ-ray spectrometer coupled for the first time with both the DIAMANT charged-particle array and the VAMOS recoil spectrometer. In this report the experimental challenges of such studies will be discussed and the experimental achievements of the in-beam spectroscopy of proton drip-line nuclei using EXOGAM will be presented.

Mots clés: EXOGAM array of HPGe detectors; DIAMANT array of CsI charged-particle detectors; Radioactive ion beam; Linear polarisation; Segmented Clover germanium detector

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

M. Petri, E.S. Paul, P.J. Nolan, A.J. Boston, H.C. Boston, et al.. The use of EXOGAM for in-beam spectroscopy of proton drip-line nuclei with radioactive ion beams. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2009, 607, pp.412-420. ⟨10.1016/j.nima.2009.04.031⟩. ⟨in2p3-00400166⟩