Elsevier

Nuclear Physics A

Volume 496, Issue 3, 5 June 1989, Pages 477-484
Nuclear Physics A

β-Delayed neutron emission of the isotopes 20C, 40,41,42P, 43,44S

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Abstract

Very neutron-rich isotopes have been produced by the fragmentation of 55 MeV/u 48Ca projectiles from GANIL onto a 181Ta target. The nuclei were separated by means of the doubly achromatic spectrometer LISE and implanted into a semiconductor telescope for identification in Z and A. Their β-delayed neutron radioactivity is observed by means of a 4π β-n coincidence detector. The results include first measurements of the half-life T12 and the neutron emission probability Pn for the isotopes 20C, 40,41,42p and 43,44S. They are compared to current theoretical predictions.

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Experiment performed at the national laboratory GANIL, Caen, France.

1

Present address: GANIL, BP5027, F-14021 Caen-Cédex, France.

2

Present address: IPN, F-91406 Orsay-Cedex, France.

3

Present address: CENBG, Le Haut Vigneau, 33170 Gradignan, France.

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