Keyword: electronics
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MOPPC036 The BPM Integration in the Taiwan Photon Source booster, storage-ring, feedback, FPGA 158
 
  • C.H. Kuo, Y.-T. Chang, J. Chen, Y.-S. Cheng, P.C. Chiu, K.T. Hsu, K.H. Hu, D. Lee, C.Y. Wu
    NSRRC, Hsinchu, Taiwan
 
  TPS (Taiwan Photon Source) is a 3 GeV synchrotron light source which is being in construction at NSRRC. The TPS BPM is based on xTCA platform, is used for various request and function reasons. These functions will be discussed. Another purpose is for orbit feedback system. The tradition BPM electronic is separated from orbit feedback system, is just monitor. In the TPS, the orbit feedback system is embedded in the BPM crate with FPGA modules. High throughput backplane, data transfer and processing support rich function for waveform recorder, diagnostic, beam study and transient analysis. The implementation result of the BPM system will be reported in this conference.  
 
MOPPC077 Open Hardware Collaboration: A Way to Improve Efficiency for a Team detector, hardware, controls, FPGA 273
 
  • Y.-M. Abiven, P. Betinelli-Deck, J. Bisou, F. Blache, G. Renaud, S.Z. Zhang
    SOLEIL, Gif-sur-Yvette, France
 
  SOLEIL* is a third generation Synchrotron radiation source located near Paris in France. Today, the Storage Ring delivers photon beam to 26 beamlines. In order to improve the machine and beamlines performance, new electronics requirements are identified. For these improvements, up-to-date commercial products are preferred but sometimes custom hardware designs become essential. At SOLEIL, the electronic team (8 people) is in charge of design, implementation and maintenance of 2000 electronics installed for control and data acquisition. This large basement and small team mean there is only little time left to focus on the development of new hardware designs. As alternative, we focus our development on the open Hardware (OHWR) initiative from the CERN dedicated for electronics designers at experimental physics facilities to collaborate on hardware designs. We collaborate as an evaluator and a contributor. We share some boards in the project SPI BOARDS PACKAGE**, developed to face our current challenges. We evaluated TDC core project, and we plan to evaluate FMC carrier. We will present our approach on how to be more efficient with developments, issues to face and the benefit we get.
*: www.synchrotron-soleil.fr
**: www.ohwr.org/projects/spi-board-package
 
 
MOPPC081 The Case of MTCA.4: Managing the Introduction of a New Crate Standard at Large Scale Facilities and Beyond controls, data-acquisition, operation, klystron 285
 
  • T. Walter, F. Ludwig, K. Rehlich, H. Schlarb
    DESY, Hamburg, Germany
 
  The demands on hardware for control and data acquisition at large-scale research organizations have increased considerably in recent years. In response, modular systems based on the new MTCA.4 standard, jointly developed by large Public Research Organizations and industrial electronics manufacturers, have pushed the boundary of system performance in terms of analog/digital data processing performance, remote management capabilities, timing stability, signal integrity, redundancy and maintainability. Whereas such public-private collaborations are not entirely new, novel instruments are in order to test the acceptance of the MTCA.4 standard beyond the physics community, identify gaps in the technology portfolio and align collaborative R&D programs accordingly. We describe the ongoing implementation of a time-limited validation project as means towards this end, highlight the challenges encountered so far and present solutions for a sustainable division of labor along the industry value chain.  
 
MOPPC111 Overview of LINAC4 Beam Instrumentation Software linac, software, emittance, controls 374
 
  • L.K. Jensen, M. Andersen, A. Guerrero, B. Kolad, M. Ludwig, U. Raich, F. Roncarolo
    CERN, Geneva, Switzerland
 
  This paper presents an overview of results from the recent LINAC4 commissioning with H beam at CERN. It will cover beam instrumentation systems acquiring beam position, intensity, size and emittance starting from the project proposal to commissioning results.  
 
TUPPC038 Simultaneous On-line Ultrasonic Flowmetery and Binary Gas Mixture Analysis for the ATLAS Silicon Tracker Cooling Control System controls, operation, detector, Ethernet 642
 
  • M. Doubek, V. Vacek, M. Vitek
    Czech Technical University in Prague, Faculty of Mechanical Engineering, Prague, Czech Republic
  • R.L. Bates, A. Bitadze
    University of Glasgow, Glasgow, Scotland, United Kingdom
  • M. Battistin, S. Berry, J. Berthoud, P. Bonneau, J. Botelho-Direito, G. Bozza, O. Crespo-Lopez, E. Da Riva, B. Di Girolamo, G. Favre, J. Godlewski, D. Lombard, L. Zwalinski
    CERN, Geneva, Switzerland
  • N. Bousson, G.D. Hallewell, M. Mathieu, A. Rozanov
    CPPM, Marseille, France
  • G. Boyd
    University of Oklahoma, Norman, Oklahoma, USA
  • C. Degeorge
    Indiana University, Bloomington, Indiana, USA
  • C. Deterre
    DESY, Hamburg, Germany
  • S. Katunin
    PNPI, Gatchina, Leningrad District, Russia
  • S. McMahon
    STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
  • K. Nagai
    University of Tsukuba, Graduate School of Pure and Applied Sciences,, Tsukuba, Ibaraki, Japan
  • C. Rossi
    Università degli Studi di Genova, Genova, Italy
 
  We describe a combined ultrasonic instrument for continuous gas flow measurement and simultaneous real-time binary gas mixture analysis. The analysis algorithm compares real time measurements with a stored data base of sound velocity vs. gas composition. The instrument was developed for the ATLAS silicon tracker evaporative cooling system where C3F8 refrigerant may be replaced by a blend with 25% C2F6, allowing a lower evaporation temperature as the LHC luminosity increases. The instrument has been developed in two geometries. A version with an axial sound path has demonstrated a 1 % Full Scale precision for flows up to 230 l/min. A resolution of 0.3% is seen in C3F8/C2F6 molar mixtures, and a sensitivity of better than 0.005% to traces of C3F8 in nitrogen, during a 1 year continuous study in a system with sequenced multi-stream sampling. A high flow version has demonstrated a resolution of 1.9 % Full Scale for flows up to 7500 l/min. The instrument can provide rapid feedback in control systems operating with refrigerants or binary gas mixtures in detector applications. Other uses include anesthesia, analysis of hydrocarbons and vapor mixtures for semiconductor manufacture.
* Comm. author: martin.doubek@cern.ch
Refs
R. Bates et al. Combined ultrasonic flow meter & binary vapour analyzer for ATLAS 2013 JINST 8 C01002
 
poster icon Poster TUPPC038 [1.834 MB]  
 
THPPC140 MTCA Upgrade of the Readout Electronics for the Bunch Arrival Time Monitor at FLASH laser, feedback, LLRF, electron 1380
 
  • J. Szewiński, G. Boltruczyk, S. Korolczuk
    NCBJ, Świerk/Otwock, Poland
  • S. Bou Habib, J. Dobosz, D. Sikora
    Warsaw University of Technology, Institute of Electronic Systems, Warsaw, Poland
  • C. Gerth, H. Schlarb
    DESY, Hamburg, Germany
 
  Bunch Arrival time Monitor (BAM) is an electro-optical device used at FLASH accelerator in DESY for the high precision, femtosecond scale, measurements of the moment when electron bunch arrives at the reference point in the machine. The arrival time is proportional to the average bunch energy, and is used to calculate the amplitude correction for RF field control. Correction is sent to the LLRF system in less than 10 us, and this creates a secondary feedback loop (over the regular LLRF one), which is focused on beam energy stabilization - beam feedback. This paper presents new uTCA BAM readout electronics design based on the uTCA.4 – “uTCA for Physics” and FMC mezzanine boards standards. Presented solution is a replacement for existing, VME based BAM readout devices. It provides higher efficiency by using new measurement techniques, better components (such as ADCs, FPGAs etc.), and high bandwidth uTCA backplane. uTCA provides also different topology for data transfers in the crate, which all together opens new opportunities for the improvement of the overall system performance.  
poster icon Poster THPPC140 [14.281 MB]  
 
THCOBB01 An Upgraded ATLAS Central Trigger for 2015 LHC Luminosities detector, timing, interface, luminosity 1388
 
  • C. Ohm
    CERN, Geneva, Switzerland
 
  The LHC collides protons at a rate of ~40MHz and each collision produces ~1.5MB of data from the ATLAS detector (~60TB of data per second). The ATLAS trigger system reduces the input rate to a more reasonable storage rate of about 400Hz. The Level1 trigger reduces the input rate to ~100kHz with a decision latency of ~2.5us and is responsible for initiating the readout of data from all the ATLAS subdetectors. It is primarily composed of the Calorimeter Trigger, Muon Trigger, and the Central Trigger Processor (CTP). The CTP collects trigger information from all Level1 systems and produces the Level-­-1 trigger decision. The LHC has now shutdown for upgrades and will return in 2015 with an increased luminosity and a center of mass energy of 14TeV. With higher luminosities, the number and complexity of Level1 triggers will increase in order to satisfy the physics goals of ATLAS while keeping the total Level1 rates at or below 100kHz. In this talk we will discuss the current Central Trigger Processor, the justification for its upgrade, including the plans to satisfy the requirements of the 2015 physics run at the LHC.
The abstract is submitted on behalf of the ATLAS Collaboration. The name of the presenter will be chosen by the collaboration and communicated upon acceptance of the abstract.
 
slides icon Slides THCOBB01 [10.206 MB]  
 
THCOCA01 A Design of Sub-Nanosecond Timing and Data Acquisition Endpoint for LHAASO Project timing, network, interface, controls 1442
 
  • W. Pan, Q. Du, G.H. Gong, H. Li, J.M. Li
    Tsinghua University, Beijing, People's Republic of China
 
  Funding: National Science Foundation of China (No.11005065 and 11275111)
The particle detector array (KM2A) of Large High Altitude Air Shower Observatory (LHAASO) project consists of 5631 electron and 1221 muon detection units over 1.2 square km area. To reconstruct the incident angle of cosmic ray, sub-nanosecond time synchronization must be achieved. The White Rabbit (WR) protocol is applied for its high synchronization precision, automatic delay compensation and intrinsic high band-width data transmit capability. This paper describes the design of a sub-nanosecond timing and data acquisition endpoint for KM2A. It works as a FMC mezzanine mounted on detector specific front-end electronic boards and provides the WR synchronized clock and timestamp. The endpoint supports EtherBone protocol for remote monitor and firmware update. Moreover, a hardware UDP engine is integrated in the FPGA to pack and transmit raw data from detector electronics to readout network. Preliminary test demonstrates a timing precision of 29ps (RMS) and a timing accuracy better than 100ps (RMS).
* The authors are with Key Laboratory of Particle and Radiation Imaging, Department of Engineering Physics, Tsinghua University, Beijing, China, 100084
* pwb.thu@gmail.com
 
slides icon Slides THCOCA01 [1.182 MB]