Keyword: experiment
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WEC4 HEPS Controls Status Update controls, database, EPICS, operation 14
 
  • C.P. Chu, D.P. Jin, G. Lei, C.H. Wang, L.X. Zhu
    IHEP, Beijing, People’s Republic of China
 
  The High Energy Photon Source (HEPS) is a planned extremely low emittance synchrotron radiation based light source located in suburban Beijing which requires high precession control systems for both accelerator and beamline controls. This paper outlines the overall design for control systems, including equipment control, fast orbit feedback, machine protection, controls network, database, high-level application architecture, and physics applications. Early plans for beamline controls are also reported.  
slides icon Slides WEC4 [4.005 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEC4  
About • paper received ※ 10 October 2018       paper accepted ※ 15 October 2018       issue date ※ 21 January 2019  
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WEP22 The Lens Effect in the Secondary Emission Based Systems of Joint Searching in EBW electron, target, gun, FPGA 83
 
  • A.M. Medvedev, K.A. Blokhina, M.G. Fedotov, Yu.I. Semenov, M. M. Sizov, A.A. Starostenko, A.S. Tsyganov
    BINP SB RAS, Novosibirsk, Russia
  • M.G. Fedotov, A.M. Medvedev, A.A. Starostenko
    NSU, Novosibirsk, Russia
 
  The results of developed scan lines generator for the magnetic correctors system are presented. Get the dependency between various types of the scan lines and distribution of the allocated energy in the electron beam welding facility. The lens effect in the secondary emission based system of joint searching, using 3-fragment linear scan line is received. The accuracy of the joint searching system (the error of positioning system) is 0.05 mm, the lens effect can decrease this value several times. The requirements for the creation full calibrated system of joint searching are listed.  
poster icon Poster WEP22 [6.704 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEP22  
About • paper received ※ 10 October 2018       paper accepted ※ 15 October 2018       issue date ※ 21 January 2019  
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WEP34 The Control System based on EPICS for the Experimental Target Prototype controls, target, EPICS, PLC 116
 
  • Q. Zhao, M.H. Cui, L. Li, M.B. Lv, L.L. Pang, C.W. Qiang, Y.B. Sheng, J.R. Sun, F. Wang, W.F. Yang, X.Y. Zhang, X. Zhang, S.X. Zhao, Y.B. Zhu
    IMP/CAS, Lanzhou, People’s Republic of China
  • C. Liu
    Lanzhou University, Lanzhou, People’s Republic of China
 
  Building a high power spallation target is one of the critical issues in Accelerator Driven System (ADS). The control system which was built based on the real-time distributed control software of experimental physics and industrial control system (EPICS) was attempted for the experimental target prototype. There are several sub-systems in the target system, e.g. the elevating system, the vacuum system, the heat-exchanging system. As an IOC, each sub-system was finally integrated into the control system of the target by different drivers and methods because different hardware devices were used for each sub-system. The ’SLS s7 driver’ which was devel-oped based on the Ethernet Interface was used for the communication between the Siemens PLCs and the Hu-man Machine Interface (HMI). The interfaces between Labview and EPICS were used for the NI (Nation-al Instruments) DAQs systems. In addition, the driver developed by ourselves was used for devices with serial ports, e.g. RS-232 or RS-485/422. The control system was finally proved stable and could basically meet the ele-mentary requirements of the spallation target system.  
poster icon Poster WEP34 [0.757 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-WEP34  
About • paper received ※ 09 October 2018       paper accepted ※ 15 October 2018       issue date ※ 21 January 2019  
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THCA4 Development of a Network-based Timing and Tag Information Distribution System for Synchrotron Radiation Experiments at SPring-8 timing, FPGA, network, software 131
 
  • T. Masuda
    JASRI/SPring-8, Hyogo, Japan
 
  Time-resolved measurements in synchrotron radiation experiments require an RF clock of a storage ring accelerator and a fundamental revolution frequency (zero address) signal. For the usage of these signals around the experimental station, long RF cables from the accelerator timing station, divider modules and delay modules must be deployed. These installations need a lot of cost and require a lot of efforts to adjust the timing by experts. To lower these costs and efforts, the revolution frequency, which is ~209 kHz at the SPring-8 storage ring, and tag information distribution system has been studied based on a high precision time synchronization technology over a network. In this study, the White Rabbit* (WR) technology is adopted. The proof of concept system has been built, which consists of a master PC, a slave PC and two WR switches. The master PC detects the zero-address signal and distributes the time stamps with tag information to the slave PC. Then the slave PC generates the ~209 kHz signals synchronized with the target bunch by adding the offset time by software. The measured one-σ jitter of the output signals from the slave PC has been achieved less than 100 ps.
* https://www.ohwr.org/projects/white-rabbit
 
slides icon Slides THCA4 [3.309 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THCA4  
About • paper received ※ 09 October 2018       paper accepted ※ 15 October 2018       issue date ※ 21 January 2019  
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THP03 Marvin Update ’ the Robotic Sample Mounting System at the Embl-Hamburg controls, software, LabView, detector 163
 
  • U. Ristau, M. Bueno, S. Fiedler, T. Gehrmann, D. Jahn, V. Palnati
    EMBL, Hamburg, Germany
 
  In this article we give an overview about the controls of the robotic sample mounting system Marvin in user operation at the DESY Petra III synchrotron Beamlines of the EMBL. Two protein crystallography Beamlines each equipped with the in house build robotic sample mounting system are in user operation. The controls of the sample mounting system ‘Marvin’ and especially new developments to decrease down times as well as system recovery routines will be described in detail.  
slides icon Slides THP03 [1.024 MB]  
poster icon Poster THP03 [2.047 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THP03  
About • paper received ※ 10 October 2018       paper accepted ※ 26 October 2018       issue date ※ 21 January 2019  
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THP12 Upgrading the Synchronisation and Trigger Systems on the Vulcan High-Power Nd:glass Laser timing, laser, fibre-optics, operation 187
 
  • D.A. Pepler, I. O. Musgrave, P.B.M. Oliveira
    STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
 
  The Vulcan Neodymium-Glass High-Power Laser Facility at the Central Laser Facility in the UK has been operational for over 40 years providing a world-leading and high-profile service to International researchers in the field of Plasma Physics. Over that time the Facility has had many modifications and enhancements to the buildings, the laser hardware and to the computerised control, synchronisation and timing systems. As the laser systems have developed and the user experiments have continued to become much more complex and demanding, many new operational conditions have been required. The use of four independent laser oscillators with different properties - including temporal, spectral and operating frequencies - have meant that the optical and electrical multiplexing and the timing and synchronisation systems have all had to be adapted and extended to cope with these additional needs. However, these changes have resulted in the build-up of the overall system jitter to ± 250 ps between long (ns) and short (ps) optical pulses and this is a limiting factor for time-critical experiments. This paper will present some of the key changes and improvements that have recently been made.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-THP12  
About • paper received ※ 27 September 2018       paper accepted ※ 15 October 2018       issue date ※ 21 January 2019  
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FRCA1 New Collaborative Approach to Scientific Data Management with NOVA detector, synchrotron, electron, data-analysis 224
 
  • W. Mexner, E. Bründermann, M. Caselle, S. Funkner, A. Kopmann, G. Niehues, N. Tan Jerome, M. Vogelgesang
    KIT, Eggenstein-Leopoldshafen, Germany
 
  Funding: Supported by Federal Ministry of Education and Research, Germany, 05K2016
Accelerator physics studies at the storage ring KARA at KIT produce terabytes of diagnostics data per day, which is recorded once and then reused on a long-term basis to answer different research questions at KIT. Finally, raw data and intermediate analysis results should be published along with scientific results. Thus storing from the very beginning the data of all analysis steps and its metadata in a central portal would be very beneficial. Similar requirements exist for synchrotron X-rayμtomography at the KIT imaging cluster and there is an interest to share the large data analysis effort. By using a new collaborative approach, the NOVA project aims to create tools, to enable an efficient use of valuable beam time. Forμtomography beamlines the project will build up a comprehensive database of various demonstrator organisms up for the morphological analysis of animals. The NOVA portal is integrated in the local data handling procedures and the datasets automatically appear in the NOVA portal as they are recorded. For both applications, accelerator diagnostics and X-ray tomography, the NOVA portal will offer new collaborative tools to enable synergetic data analysis.
 
slides icon Slides FRCA1 [6.082 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-PCaPAC2018-FRCA1  
About • paper received ※ 09 October 2018       paper accepted ※ 16 October 2018       issue date ※ 21 January 2019  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)