| Paper | Title | Other Keywords | Page |
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| S01SRA10 | HESYRL Control System Status | controls, timing, injection, operation | 40 |
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| HESYRL synchrotron radiation storage ring was completed in 1989 and has been in commissioning since then. Now it has met its design specification and is ready for synchrotron light experiments. Control system of the project was completed in 1989 and some modifications were made during commissioning. This paper describes its present configuration, status and upgrading plan. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S01SRA10 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S02SRU09 | Upgrade Plan for the Control System of the KEK e⁻/e⁺ Linac | controls, network, software, operation | 89 |
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| The KEK 2.5-GeV linac has been operating since 1982. However, in order to maintain reliable operation, the control system should be upgraded within a few years. We plan to replace the minicomputers and the main network connecting them. Thus, the architecture of the control software will also be revised. In the new system we should adopt software and hardware standards. In the next control system we will employ the TCP/IP (DARPA) protocol suite for the main network and Unix workstations to replace the minicomputers. For connections to the local controllers, VME bus (IEEE 1014) will be utilized. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S02SRU09 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S03SRD04 | Standards and the Design of the Advanced Photon Source Control System | controls, software, network, interface | 116 |
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Funding: Work supported by U.S. Department of Energy, Office of Basic Energy Sciences under Contract No. W-31-109-ENG-38. The Advanced Photon Source (APS), now under construction at Argonne National Laboratory (ANL), is a 7 GeV positron storage ring dedicated to research facilities using synchrotron radiation. This ring, along with its injection accelerators is to be controlled and monitored with a single, flexible, and expandable control system. In the conceptual stage the control system design group faced the challenges that face all control system designers: (1) to force the machine designers to quantify and codify the system requirements, (2) to protect the investment in hardware and software from rapid obsolescence, and (3) to find methods of quickly incorporating new generations of equipment and replace obsolete equipment without disrupting the existing system. To solve these and related problems, the APS control system group made an early resolution to use standards in the design of the system. This paper will cover the present status of the APS control system as well as discuss the design decisions which led us to use industrial standards and collaborations with other laboratories whenever possible to develop a control system. |
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| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD04 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S03SRD13 | Design of a Control System of the Linac for SPring-8 | controls, network, synchrotron, software | 154 |
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| The design of a control system of the linac which is a large scale system including many unstable components like klystrons and modulatora. The linac for SPring-8 requires to be operated automatically for injection to the synchrotron. Under these conditions, we chose a distributed control system architecture of a single layer net-work to simplify the protocol of the net-work between the linac, the booster synchrotron and the storage ring. A VME computer of 68030 is put in every modulator of the linac, and all control signals are gathered to the nearest VME computer. OS-9 and OS-9000 are on trial for investigation of the performances. TCP/IP is tentatively chosen as a protocol of the net-work, but we expect that MAP/MMS makes a high performance, and we are preparing a test of it. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S03SRD13 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S04SRS06 | Instrumentation & Control System For PLS-IM-T 60 MeV LINAC | controls, software, klystron, interface | 177 |
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| 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 | ||
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| S08NC01 | ARCNET as a Field Bus in the Fermilab Linac Control System | network, controls, hardware, software | 291 |
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Funding: Work supported by the U.S. Department of Energy under contract No. DE-AC02-76CHO3000 Data acquisition hardware in accelerator control systems is connected by a field bus to networked computers that supply data to consoles. Industry attempts to standardize on a low level field bus have not succeeded in providing a single well supported bus. This paper describes a data acquisition chassis that connects to VMEbus computers using ARCNET, a full featured token-passing local area network, as the field bus. The performance of this technique as implemented in the control system for the Fermilab Linac is given. |
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| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC01 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S08NC08 | Network Communication Libraries for the Next Control System of the KEK e⁻/e⁺ Linac | controls, network, Ethernet, power-supply | 318 |
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| The network communication libraries for the next control system of the KEK Linac have been developed. They are based on TCP/IP sockets, and show high availability among the different operating systems: UNIX, VAX/VMS, and MS-DOS. They also show high source portability of application programs among the different computer systems provided by various vendors. The performance and problems are presented in detail. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S08NC08 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S10TS04 | The Development of RF Reference Lines and a Timing System for Japan Linear Collider | timing, controls, gun, operation | 356 |
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| 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 | ||
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| S10TS08 | An Optical Fiber Phase Lock Network of a Radio Interferometer | network, controls, detector, gun | 371 |
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| 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 | ||
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| S11LLC02 | Device Controllers Using an Industrial Personal Computer of the PF 2.5-GeV Electron Linac at KEK | controls, electron, gun, software | 378 |
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| 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 | ||
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| S11LLC05 | Fast Automatic System for Measurements of Beam Parameters of the MMF Linac | controls, interface, ECR, proton | 389 |
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| Fast transverse beam profile and current monitoring systems have been tested at the Linear Accelerator of Moscow Meson Factory. The signals for each system are derived from multiwire secondary emission chamber and beam current transformer. Each beam pulse is digitized by fast ADC’s. There are two modes for systems. First one is for detailed beam adjustment and second one is for normal 100 Hz rate of the MMF Linac. Essential features of the hardware, software, data acquisition, measurement accuracy and beam results are presented. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S11LLC05 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S12FC02 | Generalized Fast Feedback System in the SLC | feedback, controls, software, database | 414 |
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Funding: Work supported by Department of Energy contract DE-AC03-76SF00515. A generalized fast feedback system has been developed to stabilize beams at various locations in the SLC. The system is designed to perform measurements and change actuator settings to control beam states such as position, angle and energy on a pulse to pulse basis. The software design is based on the state space formalism of digital control theory. The system is database-driven, facilitating the addition of new loops without requiring additional software. A communications system, KISNet, provides fast communications links between microprocessors for feedback loops which involve multiple micros. Feedback loops have been installed in seventeen locations throughout the SLC and have proven to be invaluable in stabilizing the machine. |
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| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S12FC02 | ||
| About • | Received ※ 10 October 1991 — Accepted ※ 02 January 1992 — Issued ※ 04 December 1992 | ||
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| S13MMI09 | Porting Linac Applieation Programs to a Windowing Environment | controls, optics, software, interface | 479 |
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| We report our experience in porting Linac application programs written for CAMAC controlled hardware consoles to an X·Windows/Motif based workstation environment. Application programs acquire their parameter values from a front end computer (FEC), controlling the acceleration process, via a local area network. The timing for data acquisition and control is determined by the particle source timing. Two server programs on the FEC for repetitive acquisition and command-response mode will be described. The application programs on the workstations access a common parameter access server who establishes the necessary connection to the parameters on the FEC. It displays the parameter’s current values and allows control through Motif interactive synoptics editor and its corresponding driver program allow easy generation of synoptics displays and interaction through command panels. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI09 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S13MMI12 | Human-Machine Interface Software Package | controls, software, MMI, operation | 490 |
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| The Man-Machine Interface software Package (MMISP) is designed to configure the console software of PLS 60 Mev LINAC control system. The control system of PLS 60 Mev LINAC ia a distributed control system which includes the main computer (Intel 310) four local station, and two sets of industrial level console computer. The MMISP provides the operator with the display page editor, various I/0 configuration such as digital signals In/Out, analog signal In/Out, waveform TV graphic display, and interactive with operator through graphic picture display, voice explanation, and touch panel. This paper describes its function and application. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S13MMI12 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S16MS05 | Modelling and Optimization of Beams Dynamics in Linac | controls, focusing, solenoid, simulation | 555 |
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| Problems of acceleration and focusing in linear accelerators are considered. A general mathematical problem of charged particle beam control is formulated. Methods and algorithms of solving these problems are developed. Problems of mathematical simulation of beam dynamics are discussed in detail. Some beam quality functions depending on all particle tracks are proposed. Mathematical methods are used for choosing parameters of forming systems. Designed codes allow to simulate and optimize beam dynamics. This report is devoted to the realization of general approach to problem of dynamical system trajectories control in accelerating and focusing structures. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S16MS05 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S17AIA01 | Development of a Diagnostic System for Klystron Modulators Using a Neural Network | controls, klystron, network, diagnostics | 558 |
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| The diagnostic system for klystron modulators using a neural network has been developed. Large changes in the voltage and current of the main circuit in a klystron modulator were observed just several ten milli-seconds before the modulator experienced trouble. These changes formed a peculiar pattern that depended on the parts with problems. Diagnosis was possible by means of pattern recognition. The recognition test of patterns using a neural network has shown good results. This system, which is built in a linac control system, is presently being operated so as to collect new trouble patterns and to carry out tests for practical use. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S17AIA01 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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| S17AIA02 | Diagnostic Expert System in the RF Linac | network, diagnostics, controls, operation | 562 |
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| A prototype diagnostic expert system (ES) was developed for the Photon Factory 2.5-GeV electron/ positron LINAC injector system. The ES has been on-lined with the conventional linac computer network for receiving real data. This project was undertaken in an attempt to reduce the linac operator’s mental workload, diagnosis duties, and to explore Artificial Intelligence (AI) technologies. The outlook for ES and its problems, and what has been achieved are outlined in this presentation. | |||
| DOI • | reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S17AIA02 | ||
| About • | Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992 | ||
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