Contribution to a conference proceedings

GSI-2025-00487

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Cavity Designs for the Ch3 to Ch11 and Bellow Tuner Investigation of the Superconducting Heavy Ion Accelerator Heliac

Conrad, T. (Corresponding author) ; Aulenbacher, K. ; Barth, W.GSI* ; Basten, M.GSI* ; Busch, M. ; Dziuba, F.GSI* ; Gettmann, V.GSI* ; Heilmann, M.GSI* ; Kürzeder, T.GSI* ; Lauber, S.GSI* ; List, J.GSI* ; Miski-Oglu, M.GSI* ; Podlech, H. ; Rubin, A.GSI* ; Schnase, A.GSI* ; Schwarz, M. ; Yaramyshev, S.GSI* ; Zimmermann, F. (Editor) ; Tanaka, H. (Editor) ; Sudmuang, P. (Editor) ; Klysubun, P. (Editor) ; Sunwong, P. (Editor) ; Chanwattana, T. (Editor) ; Petit-Jean-Genaz, C. (Editor) ; Schaa, V. R. W. (Editor)

2022
JACoW Publishing Geneva, Switzerland

Please use a persistent id in citations: doi:10.18429/JACOW-IPAC2022-TUPOTK008  doi:10.15120/GSI-2025-00487

Abstract: New CH-DTL cavities designs of the planned Helmholtz Linear Accelerator (HELIAC) are developed in collaboration of HIM, GSI and IAP Frankfurt. The linac, operated in cw-mode with a final energy of 7.3 MeV/u, is intended for various experiments, in particular with heavy ions at energies close to the Coulomb barrier for research on SHE. Twelve sc CH cavities are foreseen, divided into four different cryostats. Each cavity will be equipped with dynamic bellow tuner. After successful beam tests with CH0, CH3 to CH11 are being designed. Based on the experience gained so far, optimization will be made, which will lead to both an increase in performance in terms of reducing the peak fields limiting superconductivity and a reduction in manufacturing costs and time. In order to optimize manufacturing, attention was paid to design many parts of the cavity, such as lids, spokes, tuner and helium shell, with the same geometrical dimensions. In addition, a tuner test rig was developed, which will be used to investigate the mechanical properties of the bellow tuner. For this purpose, different simulations were made in order to realize conditions as close as possible to reality in the test rig.

Keyword(s): Accelerator Physics ; MC7: Accelerator Technology

Note: Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license.

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Contributing Institute(s):

1. Linac (LIN)
2. UNILAC Post Stripper Upgrade (PSU)
3. Linac HF (LRF)

Research Program(s):

1. 899 - ohne Topic (POF4-899) (POF4-899)

Experiment(s):

1. no experiment theory work (theory)

Appears in the scientific report 2022

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