Cavity Designs for the CH3 to CH11 of the Superconducting Heavy Ion Accelerator HELIAC

Conrad, Thorsten; Aulenbacher, Kurt; Barth, Winfried; Basten, Markus; Busch, Marco; Dziuba, Florian; Gettmann, Viktor; Heilmann, Manuel; Kürzeder, Thorsten; Lauber, Simon; List, Julian; Miski-Oglu, Maksym; Podlech, Holger; Rubin, Anna; Schnase, Alexander; Schwarz, Malte; Yaramyshev, Stepan

doi:10.18429/JACoW-SRF2019-TUP005

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RIS citation export for TUP005: Cavity Designs for the CH3 to CH11 of the Superconducting Heavy Ion Accelerator HELIAC

TY  - CONF
AU  - Conrad, T.
AU  - Aulenbacher, K.
AU  - Barth, W.A.
AU  - Basten, M.
AU  - Busch, M.
AU  - Dziuba, F.D.
AU  - Gettmann, V.
AU  - Heilmann, M.
AU  - Kürzeder, T.
AU  - Lauber, S.
AU  - List, J.
AU  - Miski-Oglu, M.
AU  - Podlech, H.
AU  - Rubin, A.
AU  - Schnase, A.
AU  - Schwarz, M.
AU  - Yaramyshev, S.
ED  - Michel, Peter
ED  - Arnold, André
ED  - Schaa, Volker RW
TI  - Cavity Designs for the CH3 to CH11 of the Superconducting Heavy Ion Accelerator HELIAC
J2  - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019
CY  - Dresden, Germany
T2  - International Conference on RF Superconductivity
T3  - 19
LA  - english
AB  - In collaboration of GSI, HIM and Goethe University Frankfurt new designs for the CH-DTL cavities of the proposed Helmholtz Linear Accelerator (HELIAC) are developed. The cw-mode operated linac with a final energy of 7.3 MeV/u is intended for various experiments, especially with heavy ions at energies near the coulomb barrier. Currently twelve superconducting CH-cavities are considered which will be split into four different cryostats. Each cavity will be equipped with dynamic bellow tuners. After successful beam tests with CH⁰ as well as last surface preparations and ongoing rf tests with CH1 and CH2, CH3 to CH11 will be designed. Based on the successful test results, individual optimizations are carried out on the cavity design. Attention was paid to reduce production costs, for example by keeping the cavity diameter in each cryostat constant despite varying particle velocities and gap numbers. In addition to reaching the resonance frequency of 216.816 MHz and the influence of the bellow tuners on the frequency, the mechanical stability of the bellow tuners, the thermal effects on the cavity and the measures to mitigate secondary electron emission are investigated.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 396
EP  - 398
KW  - cavity
KW  - linac
KW  - heavy-ion
KW  - resonance
KW  - electron
DA  - 2019/08
PY  - 2019
SN  - ""
SN  - 978-3-95450-211-0
DO  - doi:10.18429/JACoW-SRF2019-TUP005
UR  - http://jacow.org/srf2019/papers/tup005.pdf
ER  -