Proton Test Beam At KAHVE Laboratory and its Microwave Discharge Ion Source

Abstract

KAHVE Laboratory is currently working on the design of an RFQ operating at 800 MHz which would accelerate 1 uA, 20 keV energy proton beam to 2 MeV. Microwave Discharge Ion Source is the first component that produces the hydrogen ions. As the first task towards this linac, the extraction energy of the existing ion source at KAHVELab has been increased from 8 keV to 20 keV. For this purpose, new electrode systems were designed, simulated, produced and tested in the lab. As the next step, to transmit ions to the RFQ cavity, a Low Energy Beam Transport (LEBT) line was designed using simulations. Its beam pipe and two solenoid magnets were designed, produced. The ion source and LEBT line are currently being commisioned. The designed accelerator cavity will have a total length of 98 cm, making it the world’s smallest RFQ. This presentation consists of two parts: first, the overview of the Microwave Discharge Ion Source and the proton beamline will bediscussed, then the RFQ design will be shown by comparing it to other high frequency RFQs, together with its RF power needs, and its beam dynamics simulation results. The first part of the study is supported by Istanbul University Scientific Research Commission Project ID 33250 and second part is supported by TUBITAK project ID 118E838