Keyword: extraction
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MOM309 Upgrade of the Beam Monitor System for Hadron Experimental Facility at J-PARC EPICS, PLC, hadron, operation 1
  • Y. Morino, K. Agari, Y. Sato, A. Toyoda
    KEK, Tokai, Ibaraki, Japan
  Hadron experimental facility(HD hall) at Japan Proton Accelerator Research Complex (J-PARC) is designed to provide high intensity beam for particle and nuclear physics. Slow-extracted proton beam(2 second spill per 6 seconds) from main ring is injected to a production target at the HD hall. On May 2013, proton beam was instantaneously extracted to the HD hall in 5 milliseconds. The short pulse beam melted the production target. After the accident, the beam operation was stopped at the HD hall. For the recovery of the HD hall, we upgraded the beam line of the HD hall in many aspects to sustain the abnormal beam injection. The monitor system of the beam line was also upgraded to detect the abnormal beam injection. The rate monitor of second particles from the target was prepared to detect short pulse injection. The beam profile monitor was upgraded to measure at several times during one pulse to detect a sudden change of the beam profile. The beam loss monitor was upgraded to read out always to detect unexpected high intensity beam promptly. These signals were included in the interlock system. In this paper, the detail of the beam monitor system upgrade will be reported.  
slides icon Slides MOM309 [1.980 MB]  
MOPGF123 Upgrades of Temperature Measurements and Interlock System for the Production Target at J-PARC Hadoron Experimental Facility target, EPICS, proton, hadron 1
  • K. Agari, Y. Morino, Y. Sato, A. Toyoda
    KEK, Tsukuba, Japan
  Funding: This work was supported by Grant-in-Aid (No. 26800153) for Young Scientists (B) of the Japan Ministry of Education, Culture, Sports, Science and Technology [MEXT].
Hadron experimental facility is designed to handle intense slow-extraction proton beam from Main Ring (MR) of Japan Proton Accelerator Research Complex (J-PARC). On May 23, 2013, 2×1013 proton beams were instantaneously extracted to Hadron experimental facility in 5 milliseconds due to the malfunction of the power supply for Extraction Quadrapole magnet for a spill feedback at MR. Therefore the production target made of gold was locally damaged at Hadron experimental facility because of overheat by absorbing proton beam. After the accident we upgraded target temperature measurements with 100 milliseconds sampling and synchronization with beam spills in order to promptly detect damage to the production target as soon as possible. In addition, we also upgraded temperature trend graphs and an interlock system in order to figure out the state of the production target. Currently Hadron experimental facility ready to accept slow-extraction proton beam. The results of the temperature measurements and the interlock system for the production target during beam operation at J-PARC Hadron experimental facility, will be reported in this paper.
poster icon Poster MOPGF123 [0.497 MB]  
TUC3I01 Machine Protection and Interlock System for Large Research Instruments operation, controls, superconducting-magnet, interlocks 1
  • R. Schmidt
    CERN, Geneva, Switzerland
  Major research instruments such as accelerators and fusion reactors operate with large amount of power and energy stored in beams and superconducting magnets. Highly reliable Machine Protection systems are required to operate such instruments without damaging equipment in case of failure. The increased interest in protection is related to the increasing beam power of high-power proton accelerators such as ISIS, SNS, ESS and the PSI cyclotron, to the large energy stored in the beam (in particular for hadron colliders such as LHC) and to the stored energy in magnet systems such as for ITER and LHC. Machine Protection includes process and equipment monitoring, a system to safely stop operation (e.g. dumping the beam or extracting the energy stored in the magnets) and an interlock system for highly reliable communication between protection systems. Depending on the application, the reaction of the protection function to failures must be very fast (for beam protection systems down to some us). In this paper an overview of the challenges for protection is given, and examples of interlock systems and their use during operation are presented.  
slides icon Slides TUC3I01 [1.883 MB]  
TUC3O02 Design, Implementation and Setup of the Fast Protection System for CSNS proton, neutron, ion-source, timing 1
  • D.P. Jin, Y.L. Zhang, P. Zhu
    IHEP, Beijing, People's Republic of China
  Design, implementation and setup of a FPGA and RocketIO based FPS(Fast Protection System) for CSNS(China Spallation Neutron Source) is introduced. This system is a compact design with high speed serial transmission techniques. RocketIOs (or MGTs) and optical transceivers are used to transmit the interlock signals, with each link to carry 16 signals. Ground loop problems are avoided since the use of fibers. Dedicated firmware is developed for the auto-working of the serial links when both fibers are plugged in under power-on state. A real-time online heart-beat function is also implemented for each interlock signal to make sure the overall safety of the system. The whole system is under installation and will be put into use soon part by part according to the progress of the civil construction and equipment installation.  
slides icon Slides TUC3O02 [3.489 MB]  
WEPGF046 Towards a Second Generation Data Analysis Framework for LHC Transient Data Recording framework, data-analysis, operation, hardware 1
  • S. Boychenko, C. Aguilera-Padilla, M. Dragu, M.A. Galilée, J.C. Garnier, M. Koza, K.H. Krol, R. Orlandi, M.C. Poeschl, T.M. Ribeiro, K.S. Stamos, M. Zerlauth
    CERN, Geneva, Switzerland
  • M. Zenha-Rela
    University of Coimbra, Coimbra, Portugal
  During the last two years, CERNs Large Hadron Collider (LHC) and most of its equipment systems were upgraded to collide particles at an energy level twice higher compared to the first operational period between 2010 and 2013. System upgrades and the increased machine energy represent new challenges for the analysis of transient data recordings, which have to be both dependable and fast. With the LHC having operated for many years already, statistical and trend analysis across the collected data sets is a growing requirement, highlighting several constraints and limitations imposed by the current software and data storage ecosystem. Based on several analysis use-cases, this paper highlights the most important aspects and ideas towards an improved, second generation data analysis framework to serve a large variety of equipment experts and operation crews in their daily work.  
poster icon Poster WEPGF046 [0.497 MB]  
WEPGF152 Time Travel Made Possible at FERMI by the Time-Machine Application database, TANGO, interface, controls 1
  • G. Strangolino, M. Lonza, L. Pivetta
    Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
  The TANGO archiving system HDB++ continuously stores data over time into the historical database. The new time-machine application, a specialization of the extensively used save/restore framework, allows bringing back sets of control system variables to their values at a precise date and time in the past. Given the desired time stamp t0 and a set of TANGO attributes, the values recorded at the most recent date and time preceding or equaling t0 are fetched from the historical database. The user can examine the list of variables with their values before performing a full or partial restoration of the set. The time-machine seamlessly integrates with the well known save/restore application, sharing many of its characteristics and functionalities, such as the matrix-based subset selection, the live difference view and the simple and effective user interface.  
poster icon Poster WEPGF152 [0.443 MB]