Present and future experiments with stored exotic nuclei at the FRS-ESR facility

Geißel, H.; Litvinov, Yu. A.; Beckert, K.; Béller, P.; Bosch, F.; Boutin, D.; Brandau, C.; Chen, L.; Hausmann, M.; Klepper, O.; bel, R. Knö; Kozhuharov, C.; Kurcewicz, J.; Litvinov, S.; Mazzocco, M.; Münzenberg, G.; Nociforo, C.; Nolden, F.; Patyk, Z.; ̈tzner, M. Pfu; Plaß, W. R.; Scheidenberger, C.; Steck, M.; Sun, B.; Takahashi, Kohji; Weick, H.; Winckler, N.; Winkler, M.

doi:10.1140/epjst/e2007-00280-x

Cited by 41 publications

(17 citation statements)

References 27 publications

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“…It is possible to correct for the above non-isochronicity effect if a velocity or a magnetic rigidity of each particle is known in addition to its revolution time [122]. This has been proven in a test experiment at GSI [123,124], where only the particles with a well-defined magnetic rigidity (∆(Bρ)/(Bρ) = ±1.5 · 10 −5 ) were injected into the ESR. This is the so-called Bρ-tagging method.…”

Section: Isochronous Mass Spectrometrymentioning

confidence: 99%

Storage ring mass spectrometry for nuclear structure and astrophysics research

et al. 2016

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In the last two and a half decades ion storage rings have proven to be powerful tools for precision experiments with unstable nuclides in realm of nuclear structure and astrophysics. There are presently three storage ring facilities in the world at which experiments with stored radioactive ions are possible. These are the ESR in GSI, Darmstadt/Germany, the CSRe in IMP, Lanzhou/China, and the R3 storage ring in RIKEN, Saitama/Japan. In this work, an introduction to the facilities is given. Selected characteristic experimental results and their impact in nuclear physics and astrophysics are presented. Planned technical developments and the envisioned future experiments are outlined.

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Section: Isochronous Mass Spectrometrymentioning

confidence: 99%

Storage ring mass spectrometry for nuclear structure and astrophysics research

et al. 2016

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“…By using energy-loss degraders, also the separation of mono-isotopic beams is possible [20]. The cocktail beams are ideally suited for precision mass measurements [39][40][41][42][43][44][45][46][47][48][49][50].…”

mentioning

confidence: 99%

“…For electron-cooled ions, the mass resolving power of about 750000 is reached, which is sufficient to separate isobars and even low-lying isomers by their revolution frequencies in the ring. The intensities of stored ions are continuously monitored with non-destructive time-resolved Schottky spectrometry [54][55][56][57][58]. In addition, the decay/reaction products can be intercepted by dedicated particle detectors [59,60].…”

mentioning

confidence: 99%

Studies at the border between nuclear and atomic physics: Weak decays of highly charged ions

Atanasov¹,

Blaum²,

Bosch³

et al. 2017

J. Phys.: Conf. Ser.

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“…IMS measurements are difficult because of the restricted isochronicity range with respect to the different magnetic rigidities of the circulating ions [26,27]. In addition, the stored ions have different mean velocities and the assignment of reference masses have to take this into account.…”

Section: New Mass and Lifetime Measurements Of Stored Exotic Nucleimentioning

confidence: 99%

Recent Precision Experiments with Exotic Nuclei Produced with Uranium Projectiles and Experimental Prospects at Fair

Geißel

Chen

Dickel

et al. 2014

EPJ Web of Conferences

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Abstract.Precision experiments with relativistic fragments separated in-flight require special experimental methods to overcome the inherent large emittance from the creation in nuclear reactions and atomic interactions in matter. At GSI relativistic exotic nuclei have been produced via uranium projectile fragmentation and fission and investigated with the inflight separator FRS directly, or in combination with either the storage-cooler ring ESR or the FRS Ion Catcher. 1000 A·MeV 238 U ions were used to create 60 new neutron-rich isotopes separated and identified with the FRS to measure their production cross sections. In another experimental campaign the fragments were separated in flight and injected into the storage-cooler ring ESR for accurate mass and lifetime measurements. In these experiments we have obtained accurate new mass values analyzed via a novel method which has reduced the systematic errors for both Schottky Mass Spectrometry (SMS) and for Isochronous Mass Spectrometry (IMS). Pioneering experiments have been carried out with the FRS Ion Catcher consisting of three experimental components, the dispersive magnetic system of the FRS with a monoenergetic and a homogeneous degrader, a cryogenic stopping cell filled with pure helium and a multiple-reflection time-of flight mass separator. The FRS Ion Catcher enables high precision spectroscopy experiments with eV to keV exotic nuclides. Results from these different FRS experiments are presented in this overview together with prospects for the next-generation facility Super-FRS. The novel features of the Super-FRS compared with the present FRS will be discussed in addition.

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Present and future experiments with stored exotic nuclei at the FRS-ESR facility

Cited by 41 publications

References 27 publications

Storage ring mass spectrometry for nuclear structure and astrophysics research

Storage ring mass spectrometry for nuclear structure and astrophysics research

Studies at the border between nuclear and atomic physics: Weak decays of highly charged ions

Recent Precision Experiments with Exotic Nuclei Produced with Uranium Projectiles and Experimental Prospects at Fair

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