High resolution gamma-ray spectroscopy with a radioactive beam

W.N. Catford, S. Mohammadi, P.H. Regan, C.S. Purry, W. Gelletly, P.M. Walker, G.J. Gyapong, J. Simpson, D.D. Warner, T. Davinson, R. Neal, R.D. Page, A.C. Shotter, I.M. Hibbert, R. Wadsworth, S.A. Forbes, A.M. Bruce, C. Thwaites, P. Thirolf, P. Van DuppenW. Galster, A. Ninane, J. Vervier, P. Decrock, M. Huyse, J. Szerypo, J. Wauters

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The γ-rays de-exciting the yrast states in neutron deficient nuclei around A ∼ 55 have been observed from fusion-evaporation reactions induced by an intense radioactive Ne beam on a Ca target. An array of escape suppressed germanium detectors recorded reaction γ-rays. Background subtraction of radiation from the decay of the beam was achieved using the timing properties of the pulsed beam and through particle detection using the LEDA charged particle array. These data constitute the first use of an on-line separated and accelerated radioactive beam for studies of near yrast nuclear states using fusion-evaporation reactions. Information on the γ-ray yields from evaporation residues, relative to yields with a stable beam, has been obtained and the problems associated with performing such experiments in a highly radioactive background environment have been addressed.
Original languageEnglish
Pages (from-to)449-459
Number of pages11
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number3
Publication statusPublished - 11 Mar 1996


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