Recent Results on Ne and Mg from the MISTRAL Mass Measurement Program at ISOLDE

Springer Science and Business Media LLC - 2001
D. Lunney1, C. Monsanglant1, G. Audi1, G. Bollen2, C. Borcea3,2, H. Doubre1, C. Gaulard1, S. Henry1, M. deSaintSimon1, C. Thibault1, C. Toader1,3, N. Vieira1
1Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNS) IN2P3-CNRS, Université de Paris Sud, Orsay, France
2CERN, Geneva, Switzerland
3INPE, Bucharest-Magurele, Romania

Tóm tắt

The MISTRAL experiment (Mass measurements at ISOLDE with a Transmission and Radiofrequency spectrometer on-Line), conceived for very short-lived nuclides, has reached the end of its commissioning phase. Installed in 1997, results have been obtained consistent with all aspects of the projected spectrometer performance: nuclides with half-lives as short as 30 ms have been measured and accuracies of 0.4 ppm have been achieved, despite the presence of a systematic shift and difficulties with isobaric contamination. Masses of several nuclides, including 25–26Ne and 32Mg that forms the famous island of inversion around N=20, have been significantly improved.

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