ICALEPCS1991 - List of Keywords (gun)

Paper	Title	Other Keywords	Page
S10TS02	Injection Timing System for PLS	timing, injection, klystron, kicker	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)

S10TS04	The Development of RF Reference Lines and a Timing System for Japan Linear Collider	timing, controls, linac, operation	356
	J. Urakawa, S. Araki, T. Kawamoto, T. Mimashi, Y. Otake, Y. Satoh KEK, Ibaraki, Japan
	The main linac of Japan Linear Collider(JLC) will be operated at an X-band frequency of 11.424 GHz. The positioning of the X-band accelerating structures at JLG requires precise phase synchronisation over about 10 km. Temperature compensated fiber optic cables will be used for the transmission of the 11.424 GHz RF signal. The performance of this transmission line is described. Many timing signals will be also transmitted from the main control room, in which the master RF frequency generator will be situated, via this l.3 ¿m single mode fiber optic link. The outline of the timing system for JLC is given in this paper.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS04
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)

S10TS08	An Optical Fiber Phase Lock Network of a Radio Interferometer	network, controls, linac, detector	371
	M. Nishio, S. Kawashima, H. Nakajima, C. Torii NAO-NRO, Minamisaku, Nagano, Japan N. Futagawa, K. Nishikawa, T. Takabayashi Space and Laser Communication Development Division, NEC Corporation, Yokohama, Japan S. Tanaka Sumitomo Electric Industries Ltd., Yokohama Laboratory, Yakohama, Japan
	A new phase-lock network using fiber-optic system was developed as a local signal distribution system for 84 antennas of the Nobeyama Radioheliograph. This network is an open loop system and consists of a master oscillator with an E/O converter, an 1-to-84 optical divider, phase stable optical fiber cables and phase stable phase-locked oscillators with O/E converters. Phase stability of the network and phase noise generated at the O/E converter are discussed. This phase-lock network insures the required phase stability of 3°/6 hours. The phase noise increases the coherent loss of 0.1 % at the correlator output, which is very low. This is the first large application of fiber optic devices to an open loop phase-lock network. Our system is very simple and phase-stable. Therefore, it is suitable to the connected array with large number of antennas.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS08
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)

S11LLC02	Device Controllers Using an Industrial Personal Computer of the PF 2.5-GeV Electron Linac at KEK	controls, linac, electron, software	378
	Y. Otake, K. Kakihara, K. Nakahara, Y. Ogawa, S. Ohsawa, T. Shidara, M. Yokota KEK, Ibaraki, Japan
	Device controllers for electron guns and slits using an industrial personal computer have been designed and installed in the Photon Factory 2.5-Ge V Electron Linac at KEK. The design concept of the controllers is to realize a reliable system and good productivity of hardware and software by using an industrial personal computer and a programmable sequence controller. The device controllers have been working reliably for several years.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC02
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

Other Keywords

Page

S10TS02

Injection Timing System for PLS

timing, injection, klystron, kicker

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)

S10TS04

The Development of RF Reference Lines and a Timing System for Japan Linear Collider

timing, controls, linac, operation

356

J. Urakawa, S. Araki, T. Kawamoto, T. Mimashi, Y. Otake, Y. Satoh
KEK, Ibaraki, Japan

The main linac of Japan Linear Collider(JLC) will be operated at an X-band frequency of 11.424 GHz. The positioning of the X-band accelerating structures at JLG requires precise phase synchronisation over about 10 km. Temperature compensated fiber optic cables will be used for the transmission of the 11.424 GHz RF signal. The performance of this transmission line is described. Many timing signals will be also transmitted from the main control room, in which the master RF frequency generator will be situated, via this l.3 ¿m single mode fiber optic link. The outline of the timing system for JLC is given in this paper.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS04

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)

S10TS08

An Optical Fiber Phase Lock Network of a Radio Interferometer

network, controls, linac, detector

371

M. Nishio, S. Kawashima, H. Nakajima, C. Torii
NAO-NRO, Minamisaku, Nagano, Japan
N. Futagawa, K. Nishikawa, T. Takabayashi
Space and Laser Communication Development Division, NEC Corporation, Yokohama, Japan
S. Tanaka
Sumitomo Electric Industries Ltd., Yokohama Laboratory, Yakohama, Japan

A new phase-lock network using fiber-optic system was developed as a local signal distribution system for 84 antennas of the Nobeyama Radioheliograph. This network is an open loop system and consists of a master oscillator with an E/O converter, an 1-to-84 optical divider, phase stable optical fiber cables and phase stable phase-locked oscillators with O/E converters. Phase stability of the network and phase noise generated at the O/E converter are discussed. This phase-lock network insures the required phase stability of 3°/6 hours. The phase noise increases the coherent loss of 0.1 % at the correlator output, which is very low. This is the first large application of fiber optic devices to an open loop phase-lock network. Our system is very simple and phase-stable. Therefore, it is suitable to the connected array with large number of antennas.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S10TS08

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)

S11LLC02

Device Controllers Using an Industrial Personal Computer of the PF 2.5-GeV Electron Linac at KEK

controls, linac, electron, software

378

Y. Otake, K. Kakihara, K. Nakahara, Y. Ogawa, S. Ohsawa, T. Shidara, M. Yokota
KEK, Ibaraki, Japan

Device controllers for electron guns and slits using an industrial personal computer have been designed and installed in the Photon Factory 2.5-Ge V Electron Linac at KEK. The design concept of the controllers is to realize a reliable system and good productivity of hardware and software by using an industrial personal computer and a programmable sequence controller. The device controllers have been working reliably for several years.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC02

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)