Paper |
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Other Keywords |
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MOPC19 |
Virtual Signal Spectrum Analyzer Development Based On RedPitaya and EPICS for Tune Measurement in BEPCII |
EPICS, controls, synchrotron, collider |
159 |
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- Y.H. Lu, J. He
IHEP, Beijing, People’s Republic of China
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An independent tune measurement system was developed in BEPCII with Direct Diode Detect (3D) technique. The system includes two diagonal electrode signals of a set of BPM, a self-developed board based on Direct Diode Detect (3D) technique, and a commercial virtual spectrum analyzer with a proprietary GUI client. Based on the open source digital electronics RedPitaya and open source software Spectrum, a device driver was developed based on EPICS and ASYN support for replacement of the commercial virtual spectrum analyzers and integration with the central system EPICS. According to the application requirements of tune measurement in BEPCII, the device driver finds the frequency point and power value corresponding to the X&Y tune between 631 to 800 kHz. The spectral resolution is 119 Hz. An EPICS IOC was built and run on RedPitaya for accessing the device driver. A CSS-based user interface shows the signal’s power spectra and the tune frequency directly.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2018-MOPC19
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About • |
paper received ※ 04 September 2018 paper accepted ※ 12 September 2018 issue date ※ 29 January 2019 |
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TUPC10 |
The Design of Scanning Control System for Proton Therapy Facility at CIAE |
controls, proton, feedback, cyclotron |
319 |
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- L.C. Cao, T. Ge, F.P. Guan, S.G. Hou, X.T. Lu, Y. Wang, L.P. Wen
CIAE, Beijing, People’s Republic of China
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A new proton therapy facility is being construted at CIAE. As a part of whole control system, the scanning control system is designed to scan the beam for the access of required tumor therapy field. The origin data plan comes from treatment control system. Two set of dipole magnet is driven for changing the beam path. Meanwhile, interfaces between scanning system and other systems is built for beam control and safe considering. In order to acquire high precise feedback control, the beam position and dose monitor ionization chambers will be constructed in the nozzle. Once accident occurs, the scanning system should be able to response instantly to cut off beam and inform safe interlock system simultaneously. The response time of scanning system is at tens of microsecond level, so the scanning controller, feedback controller and the monitor electronics is built in fast mode. Detailed description will be presented in this paper.
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Poster TUPC10 [0.794 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2018-TUPC10
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About • |
paper received ※ 30 August 2018 paper accepted ※ 13 September 2018 issue date ※ 29 January 2019 |
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WEPA01 |
A MicroTCA.4 Timing Receiver for the Sirius Timing System |
timing, controls, feedback, hardware |
375 |
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- J.L. Brito Neto, G.B.M. Bruno, S.R. Marques, L.M. Russo, D.O. Tavares
LNLS, Campinas, Brazil
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The AMC FMC carrier (AFC) is a MicroTCA.4 AMC board which has a very flexible clock circuit that enables any clock source to be connected to any clock input, including telecom clock, FMC clocks, programmable VCXO oscillator and FPGA. This paper presents the use of the AFC board as an event receiver connected to the Sirius timing system to provide low jitter synchronized clocks and triggers for Sirius BPM electronics and other devices.
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Poster WEPA01 [3.299 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2018-WEPA01
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About • |
paper received ※ 04 September 2018 paper accepted ※ 12 September 2018 issue date ※ 29 January 2019 |
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THOA01 |
Low vs High Level Programming for FPGA |
FPGA, operation, experiment, software |
527 |
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- J. Marjanovic
DESY, Hamburg, Germany
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From their introduction in the eighties, Field-Programmable Gate Arrays (FPGAs) have grown in size and performance for several orders of magnitude. As the FPGA capabilities have grown, so have the designs. It seems that current tools and languages (VHDL and (System)Verilog) do not match the complexity required for advanced digital signal processing (DSP) systems usually found in experimental physics applications. In the last couple of years several commercial High-Level Synthesis (HLS) tools have emerged, providing a new method to implement FPGA designs, or at least some parts of it. By providing a higher level of abstraction, new tools offer a possibility to express algorithms in a way which is closer to the mathematical description. Such implementation is understood by a broader range of people, and thus minimizes the documentation and communication issues. Several examples of DSP algorithms relevant for beam instrumentation will be presented. Implementations of these algorithms with different HLS tools and traditional implementation in VHDL will be compared.
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Slides THOA01 [1.873 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2018-THOA01
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About • |
paper received ※ 04 September 2018 paper accepted ※ 12 September 2018 issue date ※ 29 January 2019 |
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THOA02 |
High-Speed Direct Sampling FMC for Beam Diagnostic and Accelerator Protection Applications |
timing, FPGA, controls, diagnostics |
534 |
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- J. Zink, M.K. Czwalinna, M. Fenner, S. Jabłoński, J. Marjanovic, H. Schlarb
DESY, Hamburg, Germany
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The rapid development in the field of digitizers is leading to Analog-to-Digital Converters (ADC) with ever higher sampling rates. Nowadays many high-speed digitizers for RF applications and radio communication are available, which can sample broadband signals, without the need of down converters. These ADCs fit perfectly into beam instrumentation and diagnostic applications, e.g. Bunch Arrival time Monitor (BAM), klystron life-time management or continuous wave synchronization. To cover all these high-frequency diagnostic applications, DESY has developed a direct sampling FMC digitizer board based on a high-speed ADC with an analog input bandwidth of 2.7 GHz. A high-speed data acquisition system capable of acquiring 2 channels at 800 MSP/s will be presented. As first model application of the versatile digitizer board is the coarse bunch arrival time diagnostics in the free electron laser FLASH at DESY.
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Slides THOA02 [5.817 MB]
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2018-THOA02
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About • |
paper received ※ 04 September 2018 paper accepted ※ 13 September 2018 issue date ※ 29 January 2019 |
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