TY  - CONF
AU  - Karau, S.
AU  - Bousonville, M.
AU  - Hülsmann, P.
AU  - Choroba, S.
TI  - Development of single mode cavity at 1.5 GHz for the third harmonic RF-system in PETRA IV
JO  - Journal of physics / Conference Series
VL  - 2687
IS  - 3
SN  - 1742-6588
CY  - Bristol
PB  - IOP Publ.
M1  - PUBDB-2024-07185
T2  - Journal of Physics: Conference Series
SP  - 032029
PY  - 2024
N1  - Literaturangaben;
AB  - The PETRA IV storage ring currently under development at DESY will require a third harmonic 1.5 GHz RF-system to prevent negative effects on both, lifetime and emittance, caused by Touschek effect and Intrabeam scattering. These cavities lengthen the bunches and thereby reduce their charge density.For this 3rd harmonic system, a one-cell single-mode cavity with a simple mechanical and electrical structure is under design that should also reduce Higher Order Modes (HOMs) to a quality factor less than 100. Therefore, the well-known approach of the Choke Mode Cavity was chosen, that use a radial line damper to attenuate the HOMs and a radial choke that traps the acceleration mode.The general behaviour of the choke mode structure was simulated, discussed and optimized for the requirements of a one-cell cavity with high effective shunt impedance, high-quality factor and simple manufacturing.
T2  - 14th International Particle Accelerator Conference
CY  - 7 May 2023 - 15 May 2023, Venice (Italy)
Y2  - 7 May 2023 - 15 May 2023
M2  - Venice, Italy
LB  - PUB:(DE-HGF)16 ; PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
DO  - DOI:10.1088/1742-6596/2687/3/032029
UR  - https://bib-pubdb1.desy.de/record/618832
ER  -