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Recent Status New Superconducting CW Heavy Ion LINAC@GSI
| Content Provider | Semantic Scholar |
|---|---|
| Author | Gettmann, Viktor Amberg, Michael Aulenbacher, Kurt Barth, Winfried Basten, Markus Bänsch, Daniel Dziuba, Florian Heilmann, Manuel Mickat, Sascha Miski-Oglu, Maksym Podlech, Holger Ratzinger, Ulrich Yaramyshev, Stepan |
| Copyright Year | 2015 |
| Abstract | The demonstrator is a prototype of the first section of the proposed cw-LINAC@GSI, comprising a superconducting CH-cavity embedded by two superconducting solenoids. The sc CH-structure is the key component and offers a variety of research and development. The beam focusing solenoids provide maximum fields of 9.3 T at an overall length of 380 mm and a free beam aperture of 30 mm. The magnetic induction of the fringe is minimized to 50 mT at the inner NbTi-surface of the neighboring cavity. The fabrication of the key components is still in progress and is near to completion. After cold performance testing of the RF cavity, the helium jacket will be welded on. The cryostat is partly assembled and will be finished in the next weeks. The test environment is completely prepared. Advanced emittance measurement is foreseen to prepare for best matching of the heavy ion beam from the injector. Integration of the cryostat into the beam line, the first cool down of the module and commissioning of the RF elements will be performed as next steps towards a complete testing of the demonstrator. CW LINAC DEMONSTRATOR The Demonstrator project kick-off at GSI was in 2010, which was followed by design studies for the 217 MHz CH cavity, two sc solenoids, and the cryostat. Meanwhile the fabrication is near completion. The main parameters are listed in Table 1. The concept of a suspended support frame, which carries the cavity embedded by two sc solenoids, was chosen (Fig.1) [1]. The support frame as well the accelerator components are suspended each by eight tie rods in a cross-like configuration (nuclotron suspension) balancing the mechanical stress during the cooling-down and warm up (Fig.2). This way the components will stay always within the tolerance limits related to the beam axis (longitudinal ±2 mm, transversal ±0.2 mm). Cryogenic Limited (UK), assembled already the cryostat, the solenoids, the support frame, and the helium supply. After mounting and cool down tests, the cryostat will be delivered to GSI in end of 2015 (Table 2). Table 1: Main Parameters CH-Cavity 0.059 max A/Q 6 Resonance Frequency MHz 217 |
| Starting Page | 589 |
| Ending Page | 591 |
| Page Count | 3 |
| File Format | PDF HTM / HTML |
| DOI | 10.18429/JACoW-SRF2015-TUPB020 |
| Alternate Webpage(s) | http://accelconf.web.cern.ch/AccelConf/SRF2015/papers/tupb020.pdf |
| Alternate Webpage(s) | https://repository.gsi.de/record/194904/files/tupb020.pdf?subformat=pdfa |
| Alternate Webpage(s) | https://doi.org/10.18429/JACoW-SRF2015-TUPB020 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
