ICALEPCS1991 - Classification: Status Reports: Subsystems

Paper	Title	Page
S04SRS01	Digital Control of the Superconducting Cavities for the LEP Energy Upgrade	159
	G. Cavallari, E. Ciapala CERN, Meyrin, Switzerland
	The superconducting (SC) cavities for the LEP200 energy upgrade will be installed in units of 16 as for the present copper cavity system. Similar equipment will be used for RF power generation and distribution, for the low level RF system and for digital control. The SC cavities and their associated equipment however require different interface hardware and new control software. To simplify routine operation control of the SC cavity units is made to resemble as closely as possible that of the existing units. Specific controls for the SC cavities at the equipment level, the facilities available and the integration of the SC cavity units into the LEP RF control system are described.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS01
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)

S04SRS02	A PC Based Control System for the CERN ISOLDE Separators	162
	R. Billinge, A. Bret, I. Deloose, A. Pace, G. Shering CERN, Meyrin, Switzerland
	The control system of the two isotope separators of CERN, named ISOLDE, is being completely redesigned with the goal of having a flexible, high performance and inexpensive system. A new architecture that makes heavy use of the commercial software and hardware available for the huge Personal Computer (PC) market is being implemented on the 1700 geographically distributed control channels of the separators. 8 MS-DOS™ i386-based PCs with about 80 acquisition/control boards are used to access the equipments while 3 other PCs running Microsoft Windows™ and Microsoft Excel™ are used as consoles, the whole through a Novell™ Local Area Network with a PC Disk Server used as a database. This paper describes the interesting solutions found and discusses the reduced programming workload and costs that are expected to build the system before the start of the separators in March 1992.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS02
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)

S04SRS03	Status of the Control and Beam Diagnostic Systems of the CRYRING Project	167
	J. Starker, M. Engström MSL, Stockholm, Sweden
	CRYRING is a facility for research in atomic, molecular and nuclear physics. It uses a cryogenic electron beam ion source, CRYSIS, together with an RFQ linear accelerator as injector into a synchrotron/storage ring for very highly charged, heavy ions. The first circulating beam was achieved in December 1990. The status of the systems for control and beam diagnostics are described.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS03
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)

S04SRS04	Magnet Test Facility Control System for Superconducting Magnets of UNK	171
	A.I. Agueev, K.F. Guertsev, A. Kazarian, H. Khoetsian, A. Agababian, A. Matevosian, V.I. Gridassov, A.A. Gussak, A.F. Dunaitsev, V.M. Proshin, V.E. Solovyov, E.A. Ustinov, V. Alferov, V. Krendelev, A. Lukyantsev, A. Sytin IHEP, Moscow Region, Russia
	An UNK Magnet Test Facility (MTF) is being constructed to provide cryogenic, electrical and magnet tests of superconducting (SC) magnets of UNK. The main parts of it are: The cryogenic system consisting in its turn of the central liquefier, ten satellite refrigerators, two compressors, purification system and transfer lines. The central liquefier supplies the satellite refrigerators with liquid helium. The liquefier is manufactured according to the scheme incorporating re-cooling by liquid nitrogen, two turbine expanders and a wet expander, - Four 8 kA, 24 V, ramped Power Supplies (PS) for cold testing of SC magnets, two 3 kA PS’s for instrumentation testing and calibration. Test facility in its turn consisting of: a) two dipoles and one quad benches for warm measurements; b) eight dipoles and two quad benches for cold measurements; c) two benches for instrumentation.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS04
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)

S04SRS05	Beam Extraction Controlsystems of the Fast-Cycling Synchrotron	174
	A. Toumanian, A. Kazarian, N. Khoetsian, N. Zapolski YerPhI, Yerevan, Armenia
	A compact system controlling the extraction of different beams (gamma, electron, synchrotron radiation) in single and simultaneous operation modes at high electromagnetic disturbances level based on using one computer of IBM PC/AT type is described.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS05
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)

S04SRS06	Instrumentation & Control System For PLS-IM-T 60 MeV LINAC	177
	D.K. Liu, K.R. Yei, H.J. Cheng, L.P. Yang, C.Z. Chuang, W. Yue, P. Lu, Y.H. Su, Q. Lin, H. Huang IHEP, Beijing, People’s Republic of China
	The PLS/ MT is a 60 MeV LINAC as a preinjector for 2 GeV LINAC of PLS project. The instrumentation and control system have been designed under the institutional collaboration between the IHEP (Beijing, China) and POSTECH (Pohang, Korea). So far, the I&C system are being set up nowadays at the POSTECH of Pohang. This paper describes its major characteristics and present status.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS06
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)

S04SRS07	Multi-Microprocessor Control of the Main Ring Magnet Power Supply of the 12 GeV KEK Proton Synchrotron	180
	T. Sueno, K. Mikawa, M. Toda, T. Toyama, H. Sato, S. Matsumoto KEK, Ibaraki, Japan
	A general description of the computer control system of the KEK 12 GeV PS main ring magnet power supply is given, including its peripheral devices. The system consists of the main HIDIC-V90/2S CPU and of the input and output controllers HISEC-04M. The main CPU, supervised by UNIX, provides the man-machine interfacing and implements the repetitive control algorithm to correct for any magnet current deviation from reference. Two sub-CPU’s are linked by a LAN and supported by a real time multi-task monitor. The output process controller distributes the control patterns to 16-bit DAC’s, at 1.67 ms clock period in synchronism with the 3-phase ac line systems. The input controller logs the magnet current and voltage, via 16-bit ADC’s at the same clock rate.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS07
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)

S04SRS08	VME Computer Monitoring System of KEK-PS Fast Pulsed Magnet Currents and Beam Intensities	184
	T. Kawakubo, A. Akiyama, T. Ishida, E. Kadokura KEK, Ibaraki, Japan T. Ishida Mitsubishi Electric Corporation, Tokyo, Japan
	For beam transfer from the KEK-PS Linac to the Booster synchrotron ring and from the Booster to the Main ring, many pulse magnets have been installed. It is very important for the machine operation to monitor the firing time, rising time and peak value of the pulsed magnet currents. It is also very important for magnet tuning to obtain good injection efficiency of the Booster and the Main ring, and to observe the last circulating bunched beam in the Booster as well as the first circulating in the Main. These magnet currents and beam intensity signals are digitized by a digital oscilloscope with signal multiplexers, and then shown on a graphic display screen of the console via a VME computer.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS08
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)

S04SRS09	Magnet Power Supply and Beam Line Control for a Secondary Beam Line K6	188
	Y. Suzuki, M. Takasaki, M. Minakawa, H. Ishii, Y. Kato, M. Ieiri, K.H. Tanaka, H. Noumi, Y. Yamanoi KEK, Ibaraki, Japan
	K6 is a secondary separated-beam line with momentum range up to 2.0 GeV/c in the north experimental hall at the KEK 12 GeV Proton Synchrotron (KEK-PS). On the construction, newly developed magnet power supplies (MPSs), in each of them a microprocessor is embedded, are introduced. The features of the MPS are as follows: 1) The MPS is connected to an upper-level beam line controller (BLC) by GPIB highway for exchanging simple messages. 2) All the operations of the MPS are supervised by the microprocessor, which has its individual parameters and fault messages. It reduces the load of the upper-level controller. 3) The MPS has functions to inspect itself and to report the results. It saves much time and labor of maintenance.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS09
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)

S04SRS10	Specific Beam Delivery System of Medical Accelerator HIMAC	192
	S. Minohara, T. Kohno, M. Sudou, M. Endo, T. Kanai, F. Soga, K. Kawachi NIRS, Chiba-shi, Japan
	A specific beam delivery system for radiation therapy in HIMAC is being designed. This report describes an outline of the beam delivery control system and its operation.
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS10
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

Digital Control of the Superconducting Cavities for the LEP Energy Upgrade

159

G. Cavallari, E. Ciapala
CERN, Meyrin, Switzerland

The superconducting (SC) cavities for the LEP200 energy upgrade will be installed in units of 16 as for the present copper cavity system. Similar equipment will be used for RF power generation and distribution, for the low level RF system and for digital control. The SC cavities and their associated equipment however require different interface hardware and new control software. To simplify routine operation control of the SC cavity units is made to resemble as closely as possible that of the existing units. Specific controls for the SC cavities at the equipment level, the facilities available and the integration of the SC cavity units into the LEP RF control system are described.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS01

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)

S04SRS02

A PC Based Control System for the CERN ISOLDE Separators

162

R. Billinge, A. Bret, I. Deloose, A. Pace, G. Shering
CERN, Meyrin, Switzerland

The control system of the two isotope separators of CERN, named ISOLDE, is being completely redesigned with the goal of having a flexible, high performance and inexpensive system. A new architecture that makes heavy use of the commercial software and hardware available for the huge Personal Computer (PC) market is being implemented on the 1700 geographically distributed control channels of the separators. 8 MS-DOS™ i386-based PCs with about 80 acquisition/control boards are used to access the equipments while 3 other PCs running Microsoft Windows™ and Microsoft Excel™ are used as consoles, the whole through a Novell™ Local Area Network with a PC Disk Server used as a database. This paper describes the interesting solutions found and discusses the reduced programming workload and costs that are expected to build the system before the start of the separators in March 1992.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS02

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)

S04SRS03

Status of the Control and Beam Diagnostic Systems of the CRYRING Project

167

J. Starker, M. Engström
MSL, Stockholm, Sweden

CRYRING is a facility for research in atomic, molecular and nuclear physics. It uses a cryogenic electron beam ion source, CRYSIS, together with an RFQ linear accelerator as injector into a synchrotron/storage ring for very highly charged, heavy ions. The first circulating beam was achieved in December 1990. The status of the systems for control and beam diagnostics are described.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS03

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)

S04SRS04

Magnet Test Facility Control System for Superconducting Magnets of UNK

171

A.I. Agueev, K.F. Guertsev, A. Kazarian, H. Khoetsian, A. Agababian, A. Matevosian, V.I. Gridassov, A.A. Gussak, A.F. Dunaitsev, V.M. Proshin, V.E. Solovyov, E.A. Ustinov, V. Alferov, V. Krendelev, A. Lukyantsev, A. Sytin
IHEP, Moscow Region, Russia

An UNK Magnet Test Facility (MTF) is being constructed to provide cryogenic, electrical and magnet tests of superconducting (SC) magnets of UNK. The main parts of it are: The cryogenic system consisting in its turn of the central liquefier, ten satellite refrigerators, two compressors, purification system and transfer lines. The central liquefier supplies the satellite refrigerators with liquid helium. The liquefier is manufactured according to the scheme incorporating re-cooling by liquid nitrogen, two turbine expanders and a wet expander, - Four 8 kA, 24 V, ramped Power Supplies (PS) for cold testing of SC magnets, two 3 kA PS’s for instrumentation testing and calibration. Test facility in its turn consisting of: a) two dipoles and one quad benches for warm measurements; b) eight dipoles and two quad benches for cold measurements; c) two benches for instrumentation.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS04

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)

S04SRS05

Beam Extraction Controlsystems of the Fast-Cycling Synchrotron

174

A. Toumanian, A. Kazarian, N. Khoetsian, N. Zapolski
YerPhI, Yerevan, Armenia

A compact system controlling the extraction of different beams (gamma, electron, synchrotron radiation) in single and simultaneous operation modes at high electromagnetic disturbances level based on using one computer of IBM PC/AT type is described.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS05

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)

S04SRS06

Instrumentation & Control System For PLS-IM-T 60 MeV LINAC

177

D.K. Liu, K.R. Yei, H.J. Cheng, L.P. Yang, C.Z. Chuang, W. Yue, P. Lu, Y.H. Su, Q. Lin, H. Huang
IHEP, Beijing, People’s Republic of China

The PLS/ MT is a 60 MeV LINAC as a preinjector for 2 GeV LINAC of PLS project. The instrumentation and control system have been designed under the institutional collaboration between the IHEP (Beijing, China) and POSTECH (Pohang, Korea). So far, the I&C system are being set up nowadays at the POSTECH of Pohang. This paper describes its major characteristics and present status.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS06

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)

S04SRS07

Multi-Microprocessor Control of the Main Ring Magnet Power Supply of the 12 GeV KEK Proton Synchrotron

180

T. Sueno, K. Mikawa, M. Toda, T. Toyama, H. Sato, S. Matsumoto
KEK, Ibaraki, Japan

A general description of the computer control system of the KEK 12 GeV PS main ring magnet power supply is given, including its peripheral devices. The system consists of the main HIDIC-V90/2S CPU and of the input and output controllers HISEC-04M. The main CPU, supervised by UNIX, provides the man-machine interfacing and implements the repetitive control algorithm to correct for any magnet current deviation from reference. Two sub-CPU’s are linked by a LAN and supported by a real time multi-task monitor. The output process controller distributes the control patterns to 16-bit DAC’s, at 1.67 ms clock period in synchronism with the 3-phase ac line systems. The input controller logs the magnet current and voltage, via 16-bit ADC’s at the same clock rate.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS07

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)

S04SRS08

VME Computer Monitoring System of KEK-PS Fast Pulsed Magnet Currents and Beam Intensities

184

T. Kawakubo, A. Akiyama, T. Ishida, E. Kadokura
KEK, Ibaraki, Japan
T. Ishida
Mitsubishi Electric Corporation, Tokyo, Japan

For beam transfer from the KEK-PS Linac to the Booster synchrotron ring and from the Booster to the Main ring, many pulse magnets have been installed. It is very important for the machine operation to monitor the firing time, rising time and peak value of the pulsed magnet currents. It is also very important for magnet tuning to obtain good injection efficiency of the Booster and the Main ring, and to observe the last circulating bunched beam in the Booster as well as the first circulating in the Main. These magnet currents and beam intensity signals are digitized by a digital oscilloscope with signal multiplexers, and then shown on a graphic display screen of the console via a VME computer.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS08

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)

S04SRS09

Magnet Power Supply and Beam Line Control for a Secondary Beam Line K6

188

Y. Suzuki, M. Takasaki, M. Minakawa, H. Ishii, Y. Kato, M. Ieiri, K.H. Tanaka, H. Noumi, Y. Yamanoi
KEK, Ibaraki, Japan

K6 is a secondary separated-beam line with momentum range up to 2.0 GeV/c in the north experimental hall at the KEK 12 GeV Proton Synchrotron (KEK-PS). On the construction, newly developed magnet power supplies (MPSs), in each of them a microprocessor is embedded, are introduced. The features of the MPS are as follows: 1) The MPS is connected to an upper-level beam line controller (BLC) by GPIB highway for exchanging simple messages. 2) All the operations of the MPS are supervised by the microprocessor, which has its individual parameters and fault messages. It reduces the load of the upper-level controller. 3) The MPS has functions to inspect itself and to report the results. It saves much time and labor of maintenance.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS09

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)

S04SRS10

Specific Beam Delivery System of Medical Accelerator HIMAC

192

S. Minohara, T. Kohno, M. Sudou, M. Endo, T. Kanai, F. Soga, K. Kawachi
NIRS, Chiba-shi, Japan

A specific beam delivery system for radiation therapy in HIMAC is being designed. This report describes an outline of the beam delivery control system and its operation.

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS10

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)