| Paper | Title | Page |
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TUP020 |
Development of Stripline Fast Faraday Cup at MEBT of RAON | |
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| RAON (Rare isotope accelerator complex for On-line experiment) is an accelerator that accelerates heavy ions such as uranium, oxygen, and protons. In the MEBT section, the ion beam is accelerated and focused by RFQ, has bunch structure with a period of 81.25 MHz, and has an energy of 507 keV/u. To measure the shape of a beam, the transverse and longitudinal profiles should be obtained using beam diagnostic device. To measure bunch lengths of less than 1 ns, 50 Ω matched stripline type fast faraday cup was fabricated and the signal was amplified by a 4 GHz broadband signal amplifier with a gain of 42 dB. The amplified signal was measured using an oscilloscope with a high sampling frequency of 25 GSPS and a wide frequency bandwidth of 4 GHz. The developed fast faraday cup was installed at the end of the MEBT in front of SCL3. This poster describes the design of a stripline fast faraday cup and the results of measuring the bunch length at a MEBT section using Ar 9+ at 30 uA current. | ||
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TUP043 |
Beam Diagnosis Control System Upgrade Based on EPICS at RAON | |
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| The Rare-isotope Accelerator complex for ON-line experiment (RAON) is a heavy ion accelerator with a maximum beam power of 400 kW. RAON is equipped with various diagnostic devices, including the Faraday Cup, Wire Scanner, and Beam Viewer, for measuring beam characteristics. EPICS is used for integrated control of driving devices such as motors and air cylinders and data collection devices, and performs sequential operations according to an algorithm written in SEQUENCER. As beam commissioning operation progressed, various improvement requirements were identified. Algorithms have been upgraded to provide error signals and prevent collisions between devices, ensuring stability. In this paper, we present the RAON’s upgraded diagnostic control system. | ||
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