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25 Years of FRS Experiments and New Horizons

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New Horizons in Fundamental Physics

Part of the book series: FIAS Interdisciplinary Science Series ((FIAS))

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Abstract

Heavy-ion research and applications with the FRagment Separator FRS started with the inauguration experiment of the high-energy facilities at GSI 25 years ago. The FRS is primarily a powerful in-flight separator for short-lived nuclei created via projectile fragmentation and abrasion fission at energies up to 1 GeV/u. The ion-optical system of the FRS also represents a versatile magnetic spectrometer for precise momentum and angular measurements of ions up to a maximum magnetic rigidity of 18 Tm. High-resolution spectrometer experiments with exotic nuclei are a great challenge due to the large phase space of the fragments. Solutions are the use of dedicated ion-optical operating modes such as dispersion matching and isochronous conditions or methods based on reduction of the phase space by cooling, slowing down and energy bunching. Results of these spectrometer experiments belong to the high-lights of the research with the FRS and will be reported together with experiments planned with the next generation facility Super-FRS. Some historical remarks and motivations are included in this review. However, it is not the intension of this report to describe the complete scientific program covered with the FRS and planned with the Super-FRS.

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Acknowledgments

It is a great pleasure and our sincere wish to thank the experienced technical team of the FRS, in particular K.-H. Behr, A. Brünle, K. Burkhard and C. Karagiannis, for their competent and continuous hard work to prepare and run the experimental program with the FRS over the last 25 years. Furthermore, we would like to acknowledge the continuous support of all infrastructure and accelerator groups of GSI. Without this excellent technical work all scientific ideas and efforts would have not been successful. However, also the many valuable contributions of our scientific colleagues were essential for the experimental results reviewed in this article and are greatly appreciated. We are confident that also with the next-generation facility, the Super-FRS, many new discoveries in heavy ion research will be achieved.

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Authors and Affiliations

  1. Gesellschaft Für Schwerionenforschung GSI, Planckstraße 1, 64291, Darmstadt, Germany

    H. Geissel, G. Münzenberg & C. Scheidenberger

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  1. H. Geissel
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  2. G. Münzenberg
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  3. C. Scheidenberger
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Correspondence to H. Geissel .

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Editors and Affiliations

  1. FIAS, Goethe University FIAS, Frankfurt, Hessen, Germany

    Stefan Schramm

  2. Frankfurt Inst. for Advanced Studies, FIAS Frankfurt Inst. for Advanced Studies, Frankfurt am Main, Germany

    Mirko Schäfer

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Geissel, H., Münzenberg, G., Scheidenberger, C. (2017). 25 Years of FRS Experiments and New Horizons. In: Schramm, S., Schäfer, M. (eds) New Horizons in Fundamental Physics. FIAS Interdisciplinary Science Series. Springer, Cham. https://doi.org/10.1007/978-3-319-44165-8_5

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