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Review of the SISAK system in transactinide research

1998; Elsevier BV; Volume: 271-273; Linguagem: Inglês

10.1016/s0925-8388(98)00076-0

1873-4669

J. P. Omtvedt, J. Alstad, Κ. Eberhardt, K. Fure, R. Malmbeck, M. Mendel, A. Nähler, Gunnar Skarnemark, Ν. Trautmann, N. Wiehl, B. Wierczinski,

Neutrino Physics Research

The performance of the SISAK1 liquid–liquid extraction system applied in transactinide experiments has been improved with respect to the equipment itself and the way it is operated. The improvements were checked in on-line experiments, under conditions similar to those during transactinide experiments. As a result, the yield of the separation system was increased by a factor >5. Furthermore, a cleaner organic scintillation phase was obtained due to a better phase separation. This reduced the β-background, which disturbs the α-measurements. The sensitivity of the SISAK apparatus, including the gasjet and the detection system has been improved by more than one order of magnitude.