2011 Particle Accelerator Conference - List of Authors (Eichhorn, R.)

Paper	Title	Page
TUP019	The S-DALINAC Polarized Injector SPIN - Performance and Results	853
	C. Eckardt, T. Bahlo, P. Bangert, R. Barday, U. Bonnes, M. Brunken, C. Burandt, R. Eichhorn, J. Enders, M. Espig, C. Ingenhaag, J. Lindemann, M. Platz, Y. Poltoratska, M. Roth, F. Schneider, H. Schüßler, M. Wagner, A. Weber, B. Zwicker TU Darmstadt, Darmstadt, Germany W. Ackermann, W.F.O. Müller, T. Weiland TEMF, TU Darmstadt, Darmstadt, Germany K. Aulenbacher IKP, Mainz, Germany
	Funding: * Work supported by DFG through SFB 634. At the superconducting 130 MeV Darmstadt electron linac S-DALINAC the new source of polarized electrons uses a GaAs cathode illuminated with pulsed Ti:Sapphire and diode laser light. The electron source had been set up and commissioned at a test stand with a beam line where a Wien filter for spin manipulation, a Mott polarimeter for polarization measurement and a chopper-prebuncher system were part of the system. Upon completion of the tests, test stand and beam line were dismantled and re-installed at the S-DALINAC. The new photo injector opens up the potential for experiments with polarized electron and photon beams for nuclear structure studies at low momentum transfers. Various polarimeters will be installed at all experimental sites to monitor the beam polarization. We report on the S-DALINAC, the results from the teststand performance, the implementation of the polarized source and the polarimeter research and development. * A. Richter, Proc. of the 5th EPAC, Sitges (1996) 110 Y. Poltoratska et al., AIP Conference Proc. 1149 (2009) 983 * P. Mohr et al., Nucl. Instr. and Meth. A423 (1999) 480

WEP277	Operational Findings and Upgrade Plans on the Superconducting Electron Accelerator S-DALINAC	1999
	F. Hug, C. Burandt, J. Conrad, R. Eichhorn, M. Kleinmann, M. Konrad, T. Kürzeder, P.N. Nonn, N. Pietralla, S.T. Sievers TU Darmstadt, Darmstadt, Germany
	Funding: DFG through SFB 634. The S-DALINAC is a superconducting recirculating electron accelerator with a final energy of 130 MeV. It operates in cw at 3 GHz. It accelerates beams of either unpolarized or polarized electrons and is used as a source for nuclear- and astrophysical experiments at the university of Darmstadt since 1987. We will report on the operational findings, recent modifications and on the future upgrade plans: First results from the new digital rf control system, the injector current upgrade and the improved longitudinal working point will be presented. In addition, an overview of the future plans, namely installing an additional recirculation path and two scraper systems will be given.

Paper

Title

Page

The S-DALINAC Polarized Injector SPIN - Performance and Results

853

C. Eckardt, T. Bahlo, P. Bangert, R. Barday, U. Bonnes, M. Brunken, C. Burandt, R. Eichhorn, J. Enders, M. Espig, C. Ingenhaag, J. Lindemann, M. Platz, Y. Poltoratska, M. Roth, F. Schneider, H. Schüßler, M. Wagner, A. Weber, B. Zwicker
TU Darmstadt, Darmstadt, Germany
W. Ackermann, W.F.O. Müller, T. Weiland
TEMF, TU Darmstadt, Darmstadt, Germany
K. Aulenbacher
IKP, Mainz, Germany

Funding: * Work supported by DFG through SFB 634.
At the superconducting 130 MeV Darmstadt electron linac S-DALINAC the new source of polarized electrons uses a GaAs cathode illuminated with pulsed Ti:Sapphire and diode laser light. The electron source had been set up and commissioned at a test stand with a beam line where a Wien filter for spin manipulation, a Mott polarimeter for polarization measurement and a chopper-prebuncher system were part of the system. Upon completion of the tests, test stand and beam line were dismantled and re-installed at the S-DALINAC. The new photo injector opens up the potential for experiments with polarized electron and photon beams for nuclear structure studies at low momentum transfers. Various polarimeters will be installed at all experimental sites to monitor the beam polarization. We report on the S-DALINAC, the results from the teststand performance, the implementation of the polarized source and the polarimeter research and development.
* A. Richter, Proc. of the 5th EPAC, Sitges (1996) 110
** Y. Poltoratska et al., AIP Conference Proc. 1149 (2009) 983
*** P. Mohr et al., Nucl. Instr. and Meth. A423 (1999) 480

WEP277

Operational Findings and Upgrade Plans on the Superconducting Electron Accelerator S-DALINAC

1999

F. Hug, C. Burandt, J. Conrad, R. Eichhorn, M. Kleinmann, M. Konrad, T. Kürzeder, P.N. Nonn, N. Pietralla, S.T. Sievers
TU Darmstadt, Darmstadt, Germany

Funding: DFG through SFB 634.
The S-DALINAC is a superconducting recirculating electron accelerator with a final energy of 130 MeV. It operates in cw at 3 GHz. It accelerates beams of either unpolarized or polarized electrons and is used as a source for nuclear- and astrophysical experiments at the university of Darmstadt since 1987. We will report on the operational findings, recent modifications and on the future upgrade plans: First results from the new digital rf control system, the injector current upgrade and the improved longitudinal working point will be presented. In addition, an overview of the future plans, namely installing an additional recirculation path and two scraper systems will be given.