Keyword: monitoring
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MOPA06 Recent Advances in Beam Monitoring During SEE Testing on ISDE&JINR Heavy Ion Facilities detector, heavy-ion, radiation, real-time 36
  • P.A. Chubunov
    ISDE, Moscow, Russia
  • V.S. Anashin
    United Rocket and Space Corporation, Institute of Space Device Engineering, Moscow, Russia
  • A. Issatov
    JINR/FLNR, Moscow region, Russia
  • S.V. Mitrofanov
    JINR, Dubna, Moscow Region, Russia
  SEE testing of candidate electronic components for space applications is essential part of a spacecraft radiation hardness assurance process in terms of its operability in the harsh space radiation environment. The unique in Russia SEE test facilities have been created to provide SEE testing. The existing ion beam monitoring system has been presented at IBIC 2017, however, it has a number of shortcomings related to the lack of reliable online ion fluence measurement on the DUT, and inability to measure energies of the high-energy (15-60 MeV/nucleon) long-range (10-2000 µm) ions on the DUT. The paper presents the latest developments and their test results of the ISDE and JINR collaboration in the field of flux online monitoring (including, on the DUT) during tests using scintillation detectors based on flexible optical fibers, and measuring ion energies by the method of total absorption in the volume of scintillation or semiconductor detector. The modernization of the standard beam monitoring procedure during tests is proposed.  
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MOPA13 Fast Luminosity Monitoring for the SuperKEKB Collider (LumiBelle2 Project) luminosity, MMI, detector, feedback 51
  • C.G. Pang, P. Bambade, S. Di Carlo, D. Jehanno, V. Kubytskyi, Y. Peinaud, C. Rimbault
    LAL, Orsay, France
  • Y. Funakoshi, S. Uehara
    KEK, Ibaraki, Japan
  LumiBelle2 is a fast luminosity monitoring system prepared for SuperKEKB. It uses sCVD diamond detectors placed in both the electron and positron rings to measure the Bhabha scattering process at vanishing scattering angle. Two types of online luminosity signals are provided, a Train-Integrated-Luminosity at 1 kHz as input to the dithering feedback system used to maintain optimum overlap between the colliding beams in horizontal plane, and Bunch-Integrated-Luminosities at about 1 Hz to check for variations along the bunch trains. Individual beam sizes and offsets can also be determined from collision scanning. This paper will describe the design of LumiBelle2 and report on its performance during the Phase-2 commissioning of SuperKEKB.  
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MOPB07 Beam Parameter Measurements for the J-PARC High-Intensity Neutrino Extraction Beamline proton, target, radiation, extraction 85
  • M.L. Friend
    KEK, Ibaraki, Japan
  Proton beam monitoring is absolutely essential for the J-PARC neutrino extraction beamline, where neutrinos are produced by the collision of 30 GeV protons from the J-PARC MR accelerator with a long carbon target. Continuous beam monitoring is crucial for the stable and safe operation of the extraction line high intensity proton beam, since even a single misfired beam spill can cause serious damage to beamline equipment at 2.5x1014 and higher protons-per-pulse. A precise understanding of the proton beam intensity and profile on the neutrino production target is also necessary for predicting the neutrino beam flux with high precision. Details of the suite of monitors used to continuously and precisely monitor the J-PARC neutrino extraction line proton beam will be shown, including recent running experiences, challenges, and future upgrade plans.  
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MOPC14 The Design of Dose Parameter Acquisition and Control System for a Pencil Beam Scanning System in HUST-PTF controls, proton, software, EPICS 143
  • Y.Y. Hu, H.D. Guo, H. Lei, X.Y. Li, Y.J. Lin, P. Tan, Y.C. Yu
    HUST, Wuhan, People's Republic of China
  Pencil beam scanning (PBS) technology is a flexible and accurate dose delivery technology in proton therapy, which can deliver beams adapting to irregularly shaped tumors, while it requires precise diagnostic and real-time control of the beam dose and position. In this paper,a dose parameter acquisition and control system for the pencil beam scanning system based on the EPICS and LabVIEW is designed for HUST-PTF. The EPICS environment is built to realize the data exchange function between the front-end devices and control system. A channel access server(CAS)is designed to convert treatment parameters into the process variables (PVs) and expose them to the network for data sharing. Under current experimental conditions, the simulated beam current is generated according to the dose parameters in the treatment plan file. The current are processed by a digital electrometer and transmitted to the EPICS database in real time. Then the control system user interface based on LabVIEW is realized for displaying and parameter analysis.  
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TUPC03 Beam Quality Monitoring System in the HADES Experiment at GSI Using CVD Diamond Material* detector, electron, experiment, electronics 300
  • A. Rost, T. Galatyuk
    TU Darmstadt, Darmstadt, Germany
  • J. Adamczewski-Musch, S. Linev, J. Pietraszko, M. Traxler
    GSI, Darmstadt, Germany
  Funding: *Work supported by the DFG through GRK 2128 and VH-NG-823.
The beam quality monitoring of extracted beams from SIS18, transported to the HADES experiment, is of great importance to ensure high efficiency data recording. The main detector system used for this purpose is the Start-Veto system which consists of two diamond based sensors made of pcCVD and scCVD materials. Both sensors are equipped with a double-sided strip segmented metalization (300 µm width) which allows a precise position determination of the beam position. Those senors are able to deliver a time precision <100 ps and can handle rate capabilities up to 107 particles/channel. The read-out of the sensors is based on the TRB3 system [1]. Precise FPGA-TDCs (264 channels, <10 ps RMS) are implemented inside FPGAs. The TRB3 system serves as data acquisition system with scaler capability. Analysis and on-line visualization will be performed in DABC [2]. Having the precise time measurement and a precise position information of the incoming beam ions one can monitor important beam parameters namely the beam intensity, its position during extraction and the beam time structure. In this contribution the general read-out concept will be introduced.
[1] A. Neiser et al., TRB3: a 264 channel high precision TDC platform and its applications, 2013 JINST 8 C12043.
[2], 30.05.2018
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