By combining the effectiveness of the projectile‐fragmentation mechanism at intermediate energy, the relatively high beam intensities available at GANIL and the performances of the doubly achromatic spectrometer LISE, a breakthrough has been achieved in reaching the neutron and proton drip‐lines. The achromatic refocusing of the products by the spectrometer allows identification by a small high‐resolution solid‐state detector telescope. Combined with the time of flight measurement of the nuclei, a redundant determination of A and Z is ensured. By fragmentation of various profectiles such as 40Ar, 36Ar, 86Kr, 40Ca, 58Ni, it has been possible to produce new light neutron‐ rich or neutron‐deficient nuclei.

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