Latest Developments from the S-DALINAC

The S-DALINAC is a 130 MeV superconducting recirculating electron accelerator serving several nuclear and radiation physics experiments as well as driving an infrared free-electron laser. A system of normal conducting rf resonators for noninvasive beam position and current measurement was establishe...

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Bibliographic Details
Published inarXiv.org
Main Authors Brunken, M, Genz, H, Gopych, M, H -D Graef, Khodyachykh, S, Kostial, S, Laier, U, Lenhardt, A, Loos, H, Muehl, J, Platz, M, Richter, A, Richter, S, Schweizer, B, Stascheck, A, Titze, O, Watzlawik, S, Doebert, S
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 16.08.2000
Subjects
Chemical polishing
Free electron lasers
Holes
Infrared lasers
Laser beams
Magnetic shielding
Optical transition
Organic chemistry
Position measurement
Q factors
Radiation shielding
Superconductivity
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Summary:The S-DALINAC is a 130 MeV superconducting recirculating electron accelerator serving several nuclear and radiation physics experiments as well as driving an infrared free-electron laser. A system of normal conducting rf resonators for noninvasive beam position and current measurement was established. For the measurement of gamma-radiation inside the accelerator cave a system of Compton diodes has been developed and tested. Detailed investigations of the transverse phasespace were carried out with a tomographical reconstruction method of optical transition radiation spots. The method can be applied also to non-Gaussian phasespace distributions. The results are in good accordance with simulations. To improve the quality factor of the superconducting 3 GHz cavities, an external 2K testcryostat was commissioned. The influence of electro-chemical polishing and magnetic shielding is currently under investigation. A digital rf-feedback-system for the accelerator cavities is being developed in order to improve the energy spread of the beam of the S-DALINAC. * Supported by the BMBF under contract no. 06 DA 820, the DFG under contract no. Ri 242/12-1 and -2 and the DFG Graduiertenkolleg 'Physik und Technik von Beschleunigern'
ISSN:2331-8422