Thumbnail
Access Restriction
Open

Author Podlech, H. ♦ Hahn, R. V. ♦ Papureanu, S. ♦ Repnow, R. ♦ Schwalm, D.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Rex-isolde-project Cern ♦ Design Voltage ♦ Radioactive Beam ♦ Infrastructure Work ♦ Duty Cycle ♦ Iso-tope Separator Isolde ♦ Interdigital H-structure ♦ High Power Test ♦ Variable Final Energy ♦ Kw Rf Power ♦ Linear Accelerator ♦ Radiation Safety ♦ Pulsed Power ♦ Successful Test ♦ Isolde Hall ♦ Beam Axis ♦ Radioactive Nucleus
Abstract The REX-ISOLDE-Experiment which is presently under construction at CERN is intended to investigate exotic, very neutron rich, radioactive nuclei. A linear accelerator will deliver radioactive beams which are produced by the iso-tope separator ISOLDE, with energies between 0.85 and 2.2 MeV/u. The Linac will consist of an RFQ-accelerator, an interdigital H-Structure (IH) and three 7-gap-resonators for variable final energy. The 7-gap-resonators are being oper-ated at a frequency of f=101.28 MHz with a pulsed power of P=90 kW (duty cycle 1:10). After the fabrication of the power type resonators high power tests were performed in order to prof the design voltage of 1.74 MV at 90 kW rf power. These tests were carried out with a 32S beam and showed that the 7-gap-resonators exeed their design voltage and voltages between 1.77 and 1.88 MV could be reached. After the successful tests all resonators were shielded with lead due to the radiation safety in the ISOLDE hall. They are already delivered to CERN and aligned on beam axis. The infrastructure work, e.g. water, electricity and vac-uum is in progress. In this paper the status of the 7-gap-resonator-accelerator and the results of the high power test are reported. 1
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article