SRF2013 - List of Authors (Han, J.)

Paper

Title

Page

Design of LLRF System for RAON

1135

H. Do, O.R. Choi, J. Han, J.-W. Kim
IBS, Daejeon, Republic of Korea
C.K. Hwang
KAERI, Daejon, Republic of Korea

The low-level RF (LLRF) system being designed for RAON will allow research in the rare isotope beam facility. The LLRF system is used to feed the superconducting quarter-wave resonator having the frequency of 81.25 MHz with controlled the amplitude and phase of RF. The LLRF system uses a field programmable gate array (FPGA) to provide controlled RF amplitude and phase with ±1° and less than ±1% of stabilities, respectively. The resolution and working range is 0.004 dB and 20 dB in amplitude, respectively, and 0.5° and 360° in phase. For the RF performance test, a prototype of LLRF system is designed and fabricated. This paper will describe the design detail. Also, testing results of the prototype of LLRF system are presented.

THP091

Stability Test of 7 kW SSPA for QWR SC Cavity RF System

J. Han
IBS, Daejeon, Republic of Korea

The RAON accelerator planned SC linac in Korea will use solid state power amplifiers to provide superconducting cavities with rf power. The RAON accelerator is composed of a normal conducting injector and a SC linac. We are going to provide for in house development about all SSPA. The papers describes the test result for 81.25 MHz, 7 kW SSPA.

Paper	Title	Page
THP089	Design of LLRF System for RAON	1135
	H. Do, O.R. Choi, J. Han, J.-W. Kim IBS, Daejeon, Republic of Korea C.K. Hwang KAERI, Daejon, Republic of Korea
	The low-level RF (LLRF) system being designed for RAON will allow research in the rare isotope beam facility. The LLRF system is used to feed the superconducting quarter-wave resonator having the frequency of 81.25 MHz with controlled the amplitude and phase of RF. The LLRF system uses a field programmable gate array (FPGA) to provide controlled RF amplitude and phase with ±1° and less than ±1% of stabilities, respectively. The resolution and working range is 0.004 dB and 20 dB in amplitude, respectively, and 0.5° and 360° in phase. For the RF performance test, a prototype of LLRF system is designed and fabricated. This paper will describe the design detail. Also, testing results of the prototype of LLRF system are presented.

THP091	Stability Test of 7 kW SSPA for QWR SC Cavity RF System
	J. Han IBS, Daejeon, Republic of Korea
	The RAON accelerator planned SC linac in Korea will use solid state power amplifiers to provide superconducting cavities with rf power. The RAON accelerator is composed of a normal conducting injector and a SC linac. We are going to provide for in house development about all SSPA. The papers describes the test result for 81.25 MHz, 7 kW SSPA.