Istanbul University, Istanbul, Turkey
YTU, Istanbul, Turkey
Bogazici University, Bebek / Istanbul, Turkey
IBU, Istanbul, Turkey
IZTECH, Izmir, Turkey
Istinye University, Institute of Sciences, Istanbul, Turkey
Marmara University, Istanbul, Turkey
Turkish Atomic Energy Authority, Ankara, Turkey
UCI, Irvine, California, USA
Proton Test Beam at KahveLAB (Kandilli Detector, Accelerator and Instrumentation Laboratory) project aims to design and produce a radio frequency quadrupole (RFQ) operating at 800 MHz in Istanbul, Turkey using the local resources. The beamline consists of a proton source, a low energy beam transport (LEBT) line including the beam diagnostic section, and the RFQ cavity itself. This RFQ is a 4-vane, 1-meter-long cavity to accelerate the 20 keV beam extracted from the plasma ion source to 2 MeV. Its engineering prototype is already produced and subjected to mechanical, low-power RF, and vacuum tests. In this poster, the results of the first test production, especially the bead-pull test setup will be discussed.
Marmara University, Istanbul, Turkey
Istanbul University, Istanbul, Turkey
Ankara University, Faculty of Sciences, Ankara, Turkey
YTU, Istanbul, Turkey
Bogazici University, Bebek / Istanbul, Turkey
Istinye University, Institute of Sciences, Istanbul, Turkey
TENMAK-NUKEN, Ankara, Turkey
UCI, Irvine, California, USA
IZTECH, Izmir, Turkey
The 800 MHz RFQ (radio-frequency quadrupole), developed and built at KAHVElab (Kandilli Detector, Accelerator and Instrumentation Laboratory) at Bogazici University in Istanbul, Turkey, has been designed to provide protons that have an energy of 2 MeV within only 1 m length. The RFQ consists of two modules and the test module of RFQ was constructed. The algorithm developed by CERN, based on the measurements generated by the tuner settings estimated through the response matrix [1,2,3], has been optimized for a single module and 16 tuners. The desired field consistent with the simulation was obtained by bead pull measurements. In this study, we present low-power rf measurements and field tuning of the test module.
[1] Koubek, B., et al., PHY. REV. ACC. AND BEAMS 20,08010(2017)
[2] Koubek, B., et al., CERN-2017-0006,(2017)
[3] Pommerenke, Hermann W., et al., Nuc. Inst. and Meth. in Phy. Res. Sec.A),165564(2021)
YTU, Istanbul, Turkey
Bogazici University, Bebek / Istanbul, Turkey
Istanbul University, Istanbul, Turkey
Dumlupinar University, Faculty of Science and Arts, Kutahya, Turkey
Bogaziçi University, Kandilli Accelerator, Istanbul, Turkey
Marmara University, Istanbul, Turkey
Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France
UCI, Irvine, California, USA
A testbeam using a Radio Frequency Quadrupole (RFQ) operating at 800 MHz, to accelerate a 1.5mA proton beam to 2MeV energy has been designed, manufactured and is currently being commissioned at KAHVELab, Istanbul. The beam from the microwave discharge ion source (IS) must be matched to the RFQ via an optimized Low Energy Beam Transport (LEBT) line. The LEBT line consists of two solenoid magnets, two stereer magnets and a beam diagnostics station named MBOX. All the beamline components are locally designed, simulated, manufactured and tested with local resources. The MBOX should be able to measure the beam current and profile, as well as the beam emittance, to ensure an accurate match between IS and RFQ. It includes a number of diagnostic tools: a Faraday Cup, a scintillator screen, and a pepper pot plate (PP). An analysis software is developed and tested for the PP photo analysis. This contribution will present the proton beamline components and will focus on the MBOX measurements, especially on the PP emittance analysis.