ICALEPCS1991 - List of Authors (Chang, S.-S.)

Paper	Title	Page
S03SRD11	Status Report on Control System Development for PLS	147
	S.C. Won, S.-S. Chang, J. Huang, J.W. Lee, J. Lee, J.H. Kirn PAL, Pohang, Kyungbuk, Republic of Korea
	Funding: Work supported by Pohang Iron & Steel Co., Ltd. (POSCO) and Ministry of Science and Technology (MOST), Government of Republic of Korea. Emphasizing reliability and flexibility, hierarchical architecture with distributed computers have been designed into the Pohang Light Source (PLS) computer control system. The PLS control system has four layers of computer systems connected via multiple data communication networks. This paper presents an overview of the PLS control system. The accelerator control system provides means for accessing all machine components so that the whole system could be monitored and controlled remotely. These tasks include setting magnet currents, collecting status data from the vacuum subsystem, taking orbit data with beam position monitors, feedback control of electron beam orbit, regulating the safety interlock monitors, and so forth. To design a control system which can perform these functions satisfactorily, certain basic design requirements must be fulfilled. Among these are reliability, capability, expa.nsibility, cost control, and ease of operation.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD11
About •	Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

S10TS02	Injection Timing System for PLS	349
	S.-S. Chang, S.J. Choi, M.S. Kim, W. Namkung, S.Y. Park, S.C. Won PAL, Pohang, Republic of Korea
	The ultimate goal of the PLS timing system is to successfully inject a electron bunch to a predesigned bucket in the Storage Ring. In the Linac, a pretrigger of 10².8 microseconds prior to the Gun trigger may be required to charge the pulsed divces properly and it should be precisely delayed to synchronize with beam pass at each accelerating column. To inject the electron bunch, which fully accelerated in the Linac, into a target bucket of SR, the injection kicker magnets must be energized to provide the appropriate magnetic field. For the sequential filling of the SR buckets, the appropriate timing delays throughout the entire timing system are programmable controlled by operator.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS02
About •	Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Status Report on Control System Development for PLS

147

S.C. Won, S.-S. Chang, J. Huang, J.W. Lee, J. Lee, J.H. Kirn
PAL, Pohang, Kyungbuk, Republic of Korea

Funding: Work supported by Pohang Iron & Steel Co., Ltd. (POSCO) and Ministry of Science and Technology (MOST), Government of Republic of Korea.
Emphasizing reliability and flexibility, hierarchical architecture with distributed computers have been designed into the Pohang Light Source (PLS) computer control system. The PLS control system has four layers of computer systems connected via multiple data communication networks. This paper presents an overview of the PLS control system. The accelerator control system provides means for accessing all machine components so that the whole system could be monitored and controlled remotely. These tasks include setting magnet currents, collecting status data from the vacuum subsystem, taking orbit data with beam position monitors, feedback control of electron beam orbit, regulating the safety interlock monitors, and so forth. To design a control system which can perform these functions satisfactorily, certain basic design requirements must be fulfilled. Among these are reliability, capability, expa.nsibility, cost control, and ease of operation.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD11

About •

Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992

Cite •

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

S10TS02

Injection Timing System for PLS

349

S.-S. Chang, S.J. Choi, M.S. Kim, W. Namkung, S.Y. Park, S.C. Won
PAL, Pohang, Republic of Korea

The ultimate goal of the PLS timing system is to successfully inject a electron bunch to a predesigned bucket in the Storage Ring. In the Linac, a pretrigger of 10².8 microseconds prior to the Gun trigger may be required to charge the pulsed divces properly and it should be precisely delayed to synchronize with beam pass at each accelerating column. To inject the electron bunch, which fully accelerated in the Linac, into a target bucket of SR, the injection kicker magnets must be energized to provide the appropriate magnetic field. For the sequential filling of the SR buckets, the appropriate timing delays throughout the entire timing system are programmable controlled by operator.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS02

About •

Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992

Cite •

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