Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 48: Poster

HK 48.13: Poster

Wednesday, March 25, 2015, 17:00–19:00, C/Foyer

Status of a High Gradient CH - Cavity — •Ali Almomani and Ulrich Ratzinger — IAP - Frankfurt Universität

This pulsed linac activity aims on compact designs and on a considerable increase of the voltage gain per meter. A high gradient CH - cavity operated at 325 MHz was developed at IAP - Frankfurt. The mean effective accelerating field for this cavity is expected well above 10 MV/m at β = 0.164. This cavity is developed within a funded project. The results might influence the rebuilt of the UNILAC - Alvarez section, aiming to achieve the beam intensities specified for the GSI - FAIR project (15 mA U28+). Another motivation is the development of an efficient pulsed ion accelerator for significantly higher energies like 60 AMeV. The new GSI 3 MW Thales klystron test stand will be used for the cavity RF power tests. Detailed studies on two different types of copper plating will be performed with this cavity. Additionally, operating of normal conducting cavities at cryogenic temperatures will be discussed for the case of very short RF pulses. The first measurement results for this cavity will be presented.