PCaPAC2018 - List of Keywords (LLRF)

Paper	Title	Other Keywords	Page
THCA2	Development of MicroTCA-based Low-level Radio Frequency Control Systems for cERL and STF	cavity, controls, FPGA, linac	124
	F. Qiu, T. Matsumoto, S. Michizono, T. Miura KEK, Ibaraki, Japan
	Low-level radio frequency (LLRF) control systems based on µTCA standard have been developed for facilities such as compact energy recovery linac (cERL) and superconducting test facility (STF) at the High Energy Accelerator Research Organization (KEK), Japan. Three different types of boards were developed according to their different applications. Experimental physics and industrial control system (EPICS) was selected as the data communication system for all of these µTCA boards. The LLRF systems showed good performance during the beam commissioning. This paper presents the current status of the µTCA-based LLRF systems in the cERL and STF.
	Slides THCA2 [2.000 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THCA2
About •	paper received ※ 10 October 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THP18	Operational Experience of the Digital LLRF Control System at the Booster Ring of Taiwan Photon Source	cavity, booster, controls, operation	204
	Z.K. Liu, F.Y. Chang, L.-H. Chang, M.H. Chang, S.W. Chang, L.J. Chen, F.-T. Chung, Y.D. Li, M.-C. Lin, C.H. Lo, Ch. Wang, M.-S. Yeh, T.-C. Yu NSRRC, Hsinchu, Taiwan
	The purpose of a Low-Level Radio Frequency (LLRF) system is to control the accelerating cavity field amplitude and phase. To have better RF field stability, precise control and high noise reduction, a digital LLRF control system based on Field Programmable Gate Arrays (FPGA) was developed at NSRRC. We replaced the analog LLRF system with a digital version for the TPS booster ring at the beginning of 2018. During routine operation of the booster RF, some faults occurred when the digital LLRF operated in the energy savings mode. The performance and operational experience of the digital LLRF for the TPS booster will be presented here.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THP18
About •	paper received ※ 02 October 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

THCA2

Development of MicroTCA-based Low-level Radio Frequency Control Systems for cERL and STF

cavity, controls, FPGA, linac

124

F. Qiu, T. Matsumoto, S. Michizono, T. Miura
KEK, Ibaraki, Japan

Low-level radio frequency (LLRF) control systems based on µTCA standard have been developed for facilities such as compact energy recovery linac (cERL) and superconducting test facility (STF) at the High Energy Accelerator Research Organization (KEK), Japan. Three different types of boards were developed according to their different applications. Experimental physics and industrial control system (EPICS) was selected as the data communication system for all of these µTCA boards. The LLRF systems showed good performance during the beam commissioning. This paper presents the current status of the µTCA-based LLRF systems in the cERL and STF.

Slides THCA2 [2.000 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THCA2

About •

paper received ※ 10 October 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THP18

Operational Experience of the Digital LLRF Control System at the Booster Ring of Taiwan Photon Source

cavity, booster, controls, operation

204

Z.K. Liu, F.Y. Chang, L.-H. Chang, M.H. Chang, S.W. Chang, L.J. Chen, F.-T. Chung, Y.D. Li, M.-C. Lin, C.H. Lo, Ch. Wang, M.-S. Yeh, T.-C. Yu
NSRRC, Hsinchu, Taiwan

The purpose of a Low-Level Radio Frequency (LLRF) system is to control the accelerating cavity field amplitude and phase. To have better RF field stability, precise control and high noise reduction, a digital LLRF control system based on Field Programmable Gate Arrays (FPGA) was developed at NSRRC. We replaced the analog LLRF system with a digital version for the TPS booster ring at the beginning of 2018. During routine operation of the booster RF, some faults occurred when the digital LLRF operated in the energy savings mode. The performance and operational experience of the digital LLRF for the TPS booster will be presented here.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THP18

About •

paper received ※ 02 October 2018 paper accepted ※ 15 October 2018 issue date ※ 21 January 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)