ICALEPCS1991 - List of Authors (Huang, J.Y.)

Paper	Title	Page
S12FC05	PLS Beam Position Measurement and Feedback System	427
	J.Y. Huang, J.-H. Kim, J.-W. Lee, M.K. Park, S.C. Won PAL, Pohang, 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. A real-time orbit correction system is proposed for the stabilization of beam orbit and photon beam positions in Pohang Light Source. PLS beam position monitor system is designed to be VMEbus compatible to fit the real-time digital orbit feedback system. A VMEbus based subsystem control computer, Mil-1553B communication network and 12 BPM/PS machine interface units constitute digital part of the feedback system. With the super-stable PLS correction power supply, power line frequency noise is almost filtered out and the dominant of beam orbit fluctuations are expected to appear below 15 Hz. DSP board in SCC for the computation and using an appropriate compensation circuit for the phase delay by the vacuum chamber, PLS real-time orbit correction system is realizable without changing the basic structure of PLS computer control system.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S12FC05
About •	Received ※ 02 December 1991 — Accepted ※ 02 January 1992 — Issued ※ 04 December 1992
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

PLS Beam Position Measurement and Feedback System

427

J.Y. Huang, J.-H. Kim, J.-W. Lee, M.K. Park, S.C. Won
PAL, Pohang, 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.
A real-time orbit correction system is proposed for the stabilization of beam orbit and photon beam positions in Pohang Light Source. PLS beam position monitor system is designed to be VMEbus compatible to fit the real-time digital orbit feedback system. A VMEbus based subsystem control computer, Mil-1553B communication network and 12 BPM/PS machine interface units constitute digital part of the feedback system. With the super-stable PLS correction power supply, power line frequency noise is almost filtered out and the dominant of beam orbit fluctuations are expected to appear below 15 Hz. DSP board in SCC for the computation and using an appropriate compensation circuit for the phase delay by the vacuum chamber, PLS real-time orbit correction system is realizable without changing the basic structure of PLS computer control system.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S12FC05

About •

Received ※ 02 December 1991 — Accepted ※ 02 January 1992 — Issued ※ 04 December 1992

Cite •

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