Status Reports: Non-Accelerators
Paper Title Page
S05SRN01 A Control System for a Free Electron Laser Experiment 195
 
  • D. Giove
    INFN/LASA, Segrate (MI), Italy
 
  The general layout of a control and data acquisition system for a Free Electron Laser experiment will be discussed. Some general considerations about the requirements and the architecture of the whole system will be developed. The aim or the ELFA (Electron Laser Facility) experiment is to study the physics of a single pass FEL amplifier operating in the high gain Compton regime using a short electron pulse beam. The experimental purpose is the production of high peak power (0.3-1 GW) of microwave radiation, with a basic wavelength of λr=3 mm, and the possibility of tuning from λr= 1 cm to λr=0.1 mm. In order to achieve this goal an electron beam of very high current (400 A) in short pulses (6 cm) and with a maximum energy around 10 MeV will be injected into the wiggler midplane.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN01  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN02 Control System for JAERI Free Electron Laser 198
 
  • M. Sugimoto
    JAEA, Ibaraki-ken, Japan
 
  A control system comprising of the personal computers network and the CAMAC stations for the JAERI Free Electron Laser is designed and is in the development stage. It controls the equipment and analyzes the electron and optical beam experiments. The concept and the prototype of the control system are described. The Free Electron Laser (FEL) facility, SCARLET (Superconducting Accelerator for Research of Light Emission at Tokai), is now under construction at JAERI. It is a first step of the FEL program and the aim is the R&D of the superconducting accelerator (SCA) based FEL system in 10-50 µm range. The SCA is employed due to the suitability for the cw operation in the second phase of the project.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN02  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN03 Control Software for the ESO VLT 202
 
  • G. Raffi
    ESO, Garching bei Muenchen, Germany
 
  The Very Large Telescope (VLT) project of ESO consists of an array of four optical telescopes of 8 m diameter, to be installed at a new site in the Atacama desert in Chile starting in 1995. The control software is completely distributed, being based on LANs interconnecting microprocessors and work­stations, where several users and operators will be active at the same time. Microprocessors are used in a variety of control func­tions, including the active control of the shape of the main mirror and compensation for atmospheric turbulence. Dedicated links and antennas are planned for direct com­munication and remote observation from various European centers. The main concepts and novelties of the software design are explained.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN03  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN04 Distributed Control and Data Acquisition for the EUROGAM Gamma Ray Spectrometer 208
 
  • E.C.G. Owen
    Cockcroft Institute, Warrington, Cheshire, United Kingdom
 
  EUROGAM is an Anglo/French Gamma Ray Detector which will alternate between the Tandem Van der Graaf at Daresbury and the Vivitron at Strasbourg. Because of the need to conform to the standards of Laboratories in two different countries, and the very sensitive nature of electronics for Germanium Gamma Ray telescopes. the newly emerging VXIbus (VMEbus EXtensions for Instrumentation) was chosen as the basis for control and data acquisition. This entailed a major programme of development for both the signal processing front end modules for Germanium and Bismuth Germanate detectors, and also for the hardware and software management of resources from within the VXI environment. The paper will concentrate mainly on the latter areas.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN04  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN05 A Control System of the Nobeyama Millimeter Array 214
 
  • K.I. Morita, H. Iwashita, T. Kanzawa, T. Takahashi
    NAO-NRO, Minamisaku, Nagano, Japan
 
  We have developed a control system of the Nobeyama Millimeter Array which is a radio interferometer for as­tronomical observations at millimeter wavelengths. The system consists of three sub-systems (MANAGER, EN­GINE, and STATUS CONTROLLER). Observers conduct their observations with MANAGER sub-system, which run on a UNIX workstation. ENGINE is a rigid system on an IBM compatible mainframe. It controls the accurate tracking of astronomical radio objects, and acquires a large amount of observed data from a receiver backend. STA­TUS CONTROLLER consists of several personal comput­ers which control and monitor the receiver system. These sub-systems are connected with an ethernet.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN05  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN06 Present Status of the JT-60 Control System 218
 
  • T. Kimura
    JAEA/NAKA, Ibaraki-ken, Japan
 
  The present status of the control system for a large fusion device of the JT-60 upgrade tokamak is reported including its original design concept, the progress of the system in the past five-year operation and modification for the upgrade. The control system has the features of hierarchical structure, computer control, adoption of CAMAC interfaces and protective interlock by both software and hard-wired systems. Plant monitoring and control are performed by an efficient data communication via CAMAC highways. Sequential discharge control of is executed by a combination of computers and a timing system. A plasma feedback control system with fast 32-bit microprocessors and a man/machine interface with modern workstations have been newly developed for the operation of the JT-60 upgrade.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN06  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN07 Conceptual Design of Centralized Control System for LHD 224
 
  • H. Kaneko, Y. Taniguchi, K. Yamazaki
    NIFS, Chikusa-ku, Nagoya, Japan
 
  A centralized control system for a fusion experimental machine is discussed. A configuration whereby a number of complete and uniform local systems are controlled by a central computer, a timer and an interlock system is appropriate for the control system of the Large Helical Device (LHD). A connection among local systems can be made by Ethernet, because a faster transmission of control data is processed by a specific system.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN07  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN08 Status of LHD Control System Design 228
 
  • K. Yamazaki, H. Kaneko, 0. Motojima, Y. Taniguchi
    NIFS, Chikusa-ku, Nagoya, Japan
 
  The present status of LHD (Large Helical Device) control system design is described, emphasizing on the plasma operation modes, the architecture of the LHD control system, the real-time plasma feedback system with PID or Fuzzy controllers and the construction schedule of the LHD control system. The conceptual and detailed designs are under way taking flexible and reliable operations for physics experiments into account.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN08  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN09 Control and Monitoring System Design Study for the UNK Experimental Setups 232
 
  • A. Ekimov, Yu. Ermolin, M. Matveev, S. Ovcharov, V. Petrov, V. Vaniev
    IHEP, Moscow Region, Russia
 
  At present a number of experimental setups for the new UNK project are under construction. A common approach to the architecture of control/DAO/trigger systems will be used in the development of electronics for all these detectors. The system analysis and design group has been formed for this purpose. The group activity is aimed at the development of such unified system. The group has started with control and monitoring system as one of the most important parts and the environment for the DAO/trigger systems. The group activity status report is presented.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN09  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN10 Hard-and Software for Measurement and Control of the Pulse Thermonuclear Installation 235
 
  • V.V. Bulan, V.M. Chikovsky, E.I. Dudorova, A.V. Kartashev, Yu.N. Lusin, A.I. Nebogin, G.M. Oleinik, Yu.V. Papazyan, V.H. Savochkin, V.P. Smirnov, V.I. Zaitsev
    I.V. Kurchatov Institute of Atomic Energy, Troitsk, Russia
 
  This paper describes control and measuring sys­tems of the pulse thermonuclear installation "Angara­-5". The "Angara-5" operates in a monopulse mode. It takes a long time to prepare the installation to the work shot. The main information flow about the in­stallation output parameters and the target processes comes for 10-7-10-8 sec. The measuring-control equipment has a multi-level hierarchy structure where the lower level is local systems controlled by own computers. Measuring systems contain waveform digitizers of different types. The supervisor console system realizes the communications with the local systems, as well as the data acquisition, processing and storage. Hardware and software structures are given. Careful equipment shielding and grounding have provided level of noise 30 mV. Fast signals processing features are discussed.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN10  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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S05SRN11 A Control & Data Acquisition System for Photoelectron Spectroscopy Experiment Station at Hefei National Synchrotron Radiation Laboratory 239
 
  • W. Xu, Y. Liu
    USTC, Hefei, Anhui, People’s Republic of China
 
  The paper describes system configuration and software design. The system has the following features: flexible user interface, succinct control levels, strict protection and high intelligence. It can run EDC, CFS, CIS experiment modes very conveniently with SR light source, Its construction and design idea of the system can be applied to other data acquisition systems.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S05SRN11  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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