COOL2013 - List of Authors (Stoehlker, T.)

Paper

Title

Page

Laser Cooling of Relativistic C³⁺ Ion Beams with a Large Initial Momentum Spread

166

D.F.A. Winters, C.J. Clark, C. Dimopoulou, T. Giacomini, C. Kozhuharov, T. Kühl, Yu.A. Litvinov, M. Lochmann, W. Nörtershäuser, F. Nolden, R.M. Sanchez Alarcon, M.S. Sanjari, M. Steck, T. Stöhlker, J. Ullmann
GSI, Darmstadt, Germany
T. Beck, G. Birkl, B. Rein, S. Tichelmann, T. Walther
TU Darmstadt, Darmstadt, Germany
M.H. Bussmann, U. Schramm, M. Seltmann
Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiation Physics, Dresden, Germany
X. Ma, W.Q. Wen, J. Yang, D. Zhang
IMP, Lanzhou, People's Republic of China
M. Siebold
HZDR, Dresden, Germany

We present new results on broadband laser cooling of stored relativistic C³⁺ ion beams at the ESR in Darmstadt. For the first time we could show laser cooling of bunched relativistic ion beams using a UV-laser which could scan over a very large range and thus cool all the ions in the ‘bucket’. This scheme is much more versatile than a previous scheme, where the bunching frequency was scanned relative to a fixed laser frequency. We have also demonstrated that this cooling scheme works without pre-electron cooling, which is a pre-requisite for its general application to future storage rings and synchrotrons, such as the HESR and the SIS100 at FAIR. We also present results from in vacuo UV-fluorescence detectors, which have proven to be very effective.

Slides THAM1HA04 [4.231 MB]

THPM1HA01

The Low Energy Storage Ring CRYRING@ESR

189

F. Herfurth, A. Bräuning-Demian, W. Enders, B. J. Franzke, O.K. Kester, M. Lestinsky, Yu.A. Litvinov, M. Steck, T. Stöhlker, G. Vorobjev
GSI, Darmstadt, Germany
H. Danared
ESS, Lund, Sweden
M. Engström, A. Källberg, A. Simonsson, Ö. Skeppstedt
MSL, Stockholm, Sweden
A. Heinz
Chalmers University of Technology, Chalmers Tekniska Högskola, Gothenburg, Sweden
D. Reistad
Intégro Utbildnings AB, Sigtuna, Sweden
J. Sjöholm
FYSIKUM, AlbaNova, Stockholm University, Stockholm, Sweden

The Swedish in-kind contribution to the FAIR facility in Darmstadt, the heavy-ion storage ring CRYRING, has been transported to Darmstadt recently. Instead of warehousing until installation at the Facility for Antiproton and Ion Research, FAIR, the immediate installation behind the existing Experimental Storage Ring, ESR, has been proposed. CRYRING can decelerate, cool and store heavy, highly charged ions that come from the ESR down to a few 100 keV/nucleon. It provides a high performance electron cooler in combination with a gas jet target and thus opens up a very attractive physics program as a natural extension of the ESR, which can only operate down to about 4 MeV/nucleon. CRYRING@ESR also provides beams of low charged ions independently on the GSI accelerator. All this makes CRYRING@ESR the perfect machine for FAIR related tests of diagnostics, software and concepts, and atomic physics experiments with heavy, highly charged ions stored at low energy. Perspectives are also opened up for low-energy nuclear physics investigations. CRYRING@ESR is a first step towards atomic physics with low-energy, highly charged ions at FAIR as planned within the SPARC and APPA collaborations.

Slides THPM1HA01 [4.611 MB]

Paper	Title	Page
THAM1HA04	Laser Cooling of Relativistic C³⁺ Ion Beams with a Large Initial Momentum Spread	166
	D.F.A. Winters, C.J. Clark, C. Dimopoulou, T. Giacomini, C. Kozhuharov, T. Kühl, Yu.A. Litvinov, M. Lochmann, W. Nörtershäuser, F. Nolden, R.M. Sanchez Alarcon, M.S. Sanjari, M. Steck, T. Stöhlker, J. Ullmann GSI, Darmstadt, Germany T. Beck, G. Birkl, B. Rein, S. Tichelmann, T. Walther TU Darmstadt, Darmstadt, Germany M.H. Bussmann, U. Schramm, M. Seltmann Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Institute of Radiation Physics, Dresden, Germany X. Ma, W.Q. Wen, J. Yang, D. Zhang IMP, Lanzhou, People's Republic of China M. Siebold HZDR, Dresden, Germany
	We present new results on broadband laser cooling of stored relativistic C³⁺ ion beams at the ESR in Darmstadt. For the first time we could show laser cooling of bunched relativistic ion beams using a UV-laser which could scan over a very large range and thus cool all the ions in the ‘bucket’. This scheme is much more versatile than a previous scheme, where the bunching frequency was scanned relative to a fixed laser frequency. We have also demonstrated that this cooling scheme works without pre-electron cooling, which is a pre-requisite for its general application to future storage rings and synchrotrons, such as the HESR and the SIS100 at FAIR. We also present results from in vacuo UV-fluorescence detectors, which have proven to be very effective.
	Slides THAM1HA04 [4.231 MB]

THPM1HA01	The Low Energy Storage Ring CRYRING@ESR	189
	F. Herfurth, A. Bräuning-Demian, W. Enders, B. J. Franzke, O.K. Kester, M. Lestinsky, Yu.A. Litvinov, M. Steck, T. Stöhlker, G. Vorobjev GSI, Darmstadt, Germany H. Danared ESS, Lund, Sweden M. Engström, A. Källberg, A. Simonsson, Ö. Skeppstedt MSL, Stockholm, Sweden A. Heinz Chalmers University of Technology, Chalmers Tekniska Högskola, Gothenburg, Sweden D. Reistad Intégro Utbildnings AB, Sigtuna, Sweden J. Sjöholm FYSIKUM, AlbaNova, Stockholm University, Stockholm, Sweden
	The Swedish in-kind contribution to the FAIR facility in Darmstadt, the heavy-ion storage ring CRYRING, has been transported to Darmstadt recently. Instead of warehousing until installation at the Facility for Antiproton and Ion Research, FAIR, the immediate installation behind the existing Experimental Storage Ring, ESR, has been proposed. CRYRING can decelerate, cool and store heavy, highly charged ions that come from the ESR down to a few 100 keV/nucleon. It provides a high performance electron cooler in combination with a gas jet target and thus opens up a very attractive physics program as a natural extension of the ESR, which can only operate down to about 4 MeV/nucleon. CRYRING@ESR also provides beams of low charged ions independently on the GSI accelerator. All this makes CRYRING@ESR the perfect machine for FAIR related tests of diagnostics, software and concepts, and atomic physics experiments with heavy, highly charged ions stored at low energy. Perspectives are also opened up for low-energy nuclear physics investigations. CRYRING@ESR is a first step towards atomic physics with low-energy, highly charged ions at FAIR as planned within the SPARC and APPA collaborations.
	Slides THPM1HA01 [4.611 MB]