PCaPAC2018 - List of Keywords (injection)

Paper	Title	Other Keywords	Page
WEP21	Injection Control of the TPS	controls, booster, timing, storage-ring	80
	J. Chen, Y.-S. Cheng, K.T. Hsu, K.H. Hu, C.Y. Liao, C.Y. Wu NSRRC, Hsinchu, Taiwan
	Injection control application served for Taiwan Photon Source (TPS) to help commissioning and operation of the machine. Top-up injection functionality is available from machine commissioning stage to accelerate vacuum conditioning. During last two years, several updates have been done to enhance flexibility for the injection control. The injection control includes foreground and background processes to coordinate the operation of e-gun, linear accelerator, booster synchrotron, storage ring by the help of event based timing system. Lifetime calculation of the storage ring is also synchronized with the injection process. Detail of the implementation will be presented in this report.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEP21
About •	paper received ※ 10 October 2018 paper accepted ※ 16 October 2018 issue date ※ 21 January 2019
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THP19	Timing System for Multiple Accelerator Rings at KEK e⁺/e⁻ Injector LINAC	linac, timing, gun, laser	207
	F. Miyahara, K. Furukawa, H. Kaji, M. Satoh, H. Sugimura KEK, Ibaraki, Japan T. Kudo, S. Kusano Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan H.S. Saotome Kanto Information Service (KIS), Accelerator Group, Ibaraki, Japan
	The KEK e⁺/e⁻ injector linac is operated in multiple modes that can be switched every 20 ms for e⁺/e⁻ beam injection to five different accelerator rings, SuperKEKB High Energy Ring (HER), Photon Factory (PF) ring, PF-AR, positron damping ring (DR) and SuperKEKB Low Energy Ring (LER). The MRF event system which consists of event generators (EVG) and event receivers (EVR) is used to distribute event codes that correspond to beam modes and data buffer. The EVR generates various trigger timing signals depending on the event code. The data buffer incudes some important parameters such as HER/PDR injection RF bucket, setting currents of pulsed quad/steering magnets that enables multiple beam injection. The event system uses the linac main clock (114.2 MHz) which synchronized to HER/LER, but due to PF and PF-AR rings are not synchronized to the linac, an additional synchronization system is employed for those rings. We will describe the timing and synchronization system to fulfill multiple injections to independent rings and report status of the system.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THP19
About •	paper received ※ 17 October 2018 paper accepted ※ 17 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

WEP21

Injection Control of the TPS

controls, booster, timing, storage-ring

80

J. Chen, Y.-S. Cheng, K.T. Hsu, K.H. Hu, C.Y. Liao, C.Y. Wu
NSRRC, Hsinchu, Taiwan

Injection control application served for Taiwan Photon Source (TPS) to help commissioning and operation of the machine. Top-up injection functionality is available from machine commissioning stage to accelerate vacuum conditioning. During last two years, several updates have been done to enhance flexibility for the injection control. The injection control includes foreground and background processes to coordinate the operation of e-gun, linear accelerator, booster synchrotron, storage ring by the help of event based timing system. Lifetime calculation of the storage ring is also synchronized with the injection process. Detail of the implementation will be presented in this report.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEP21

About •

paper received ※ 10 October 2018 paper accepted ※ 16 October 2018 issue date ※ 21 January 2019

Export •

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

THP19

Timing System for Multiple Accelerator Rings at KEK e⁺/e⁻ Injector LINAC

linac, timing, gun, laser

207

F. Miyahara, K. Furukawa, H. Kaji, M. Satoh, H. Sugimura
KEK, Ibaraki, Japan
T. Kudo, S. Kusano
Mitsubishi Electric System & Service Co., Ltd, Tsukuba, Japan
H.S. Saotome
Kanto Information Service (KIS), Accelerator Group, Ibaraki, Japan

The KEK e⁺/e⁻ injector linac is operated in multiple modes that can be switched every 20 ms for e⁺/e⁻ beam injection to five different accelerator rings, SuperKEKB High Energy Ring (HER), Photon Factory (PF) ring, PF-AR, positron damping ring (DR) and SuperKEKB Low Energy Ring (LER). The MRF event system which consists of event generators (EVG) and event receivers (EVR) is used to distribute event codes that correspond to beam modes and data buffer. The EVR generates various trigger timing signals depending on the event code. The data buffer incudes some important parameters such as HER/PDR injection RF bucket, setting currents of pulsed quad/steering magnets that enables multiple beam injection. The event system uses the linac main clock (114.2 MHz) which synchronized to HER/LER, but due to PF and PF-AR rings are not synchronized to the linac, an additional synchronization system is employed for those rings. We will describe the timing and synchronization system to fulfill multiple injections to independent rings and report status of the system.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THP19

About •

paper received ※ 17 October 2018 paper accepted ※ 17 October 2018 issue date ※ 21 January 2019

Export •

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