Abstract
Total nuclear reaction cross-sections are determined by means of a 4π-γ method. The results cover a wide span of targets for various stable beams. The validity of the method is shown in a combined systematics including also the results of transmission-type experiments. The data are very well described by the formula developed by Kox et al. The same method is applied to secondary fragment beams produced from a 44 MeV/u22Ne beam on a 332mg/cm2 181Ta target. Using the LISE spectrometer the fragments4, 6He,6–9, 11Li,7, 9–12, 14Be,10–15, 17B11–19C,13–19N,15–21O,18– 21F and20,21 Ne are analyzed and transported to interact with a 199.4 mg/cm2 Cu target surrounded by a 4π-γ counter. The measured total reaction cross-sectionsσ R are discussed in terms of the reduced strong absorption radiusr 0 and compared with other experimental results.
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Experiment performed at the French national accelerator GANIL
On leave from Institute of Modern Physics, Lanzhou, China
We like to express our thanks to A. Fontenille and F. Geoffroy whose mechanical skills have enabled these experiments. The help of P. Stassi with the operation of the electronics has been decisive. Two of us, R.N. and E.A., acknowledge support by the German federal minister for research and technology (BMFT, contract n∘ 06MZ458I).
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Saint-Laurent, M.G., Anne, R., Bazin, D. et al. Total cross sections of reactions induced by neutron-rich light nuclei. Z. Physik A - Atomic Nuclei 332, 457–465 (1989). https://doi.org/10.1007/BF01292431
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DOI: https://doi.org/10.1007/BF01292431