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| Contribution to a conference proceedings/Contribution to a book | GSI-2019-00519 |
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2018
JACoW Publishing, Geneva, Switzerland
9th International Particle Accelerator Conference, IPAC2018, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 2018 JACoW Publishing, Geneva, Switzerland 2796-2799 (2018) [10.18429/JACOW-IPAC2018-WEPML045]
Please use a persistent id in citations: doi:10.18429/JACOW-IPAC2018-WEPML045 doi:10.15120/GSI-2019-00519
Abstract: A superconducting cw LINAC for heavy ions is currently under development at GSI in Darmstadt and HIM in Mainz. This Linac is based on 217 MHz multigap bulk niobium Crossbar H-mode RF-cavities. In order to treat and prepare RF-cavities with such a complex geometry a new cleanroom facility has been already built at the Helmholtz-Institut in Mainz. All tools and machines inside the cleanroom can handle cavities with up to 800 mm in diameter and with up to 1300 mm in length. In its ISO-class 6 and 4 zones, respectively it features a large ultrasonic and conductance rinsing bath, a high pressure rinsing (HPR) cabinet and a vacuum oven. The HPR cabinet has an inside clearance of 1.4 m. The large cavities sit on a rotating table, while the rising wand moves vertically up and down. Due to the crossbar structure of the RF-cavities the HPR device allows for off axis-rinsing in their quadrants. For RF testing a 52 m² (4 m x 13 m) concrete shielded area with sufficient liquid helium and nitrogen supply is located next to the cleanroom and the cryo-module assembly area. We will report on the new SRF infrastructure in Mainz and the commissioning of the new high pressure rinsing cabinet.
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