Author: Serednyakov, S.S.
Paper Title Page
MOPMU001 Software and Capabilities of the Beam Position Measurement System for Novosibirsk Free Electron Laser 422
  • S.S. Serednyakov, E.N. Dementyev, A.S. Medvedko, E. Shubin, V.G. Tcheskidov, N. Vinokurov
    BINP SB RAS, Novosibirsk, Russia
  The system that measures the electron beam position in Novosibirsk free electron laser with the application of electrostatic pick-up electrodes is described. The measuring hardware and main principles of measurement are considered. The capabilities and different operation modes of this system are described. In particular, the option of simultaneous detection of accelerated and decelerated electron beams at one pick-up station is considered. Besides, the operational features of this system at different modes of FEL performance (the 1st, 2nd, and 3rd stages) are mentioned.  
poster icon Poster MOPMU001 [0.339 MB]  
MOPMU021 Control System for Magnet Power Supplies for Novosibirsk Free Electron Laser 480
  • S.S. Serednyakov, B.A. Dovzhenko, A.A. Galt, V.R. Kozak, E.A. Kuper, L.E. Medvedev, A.S. Medvedko, Y.M. Velikanov, V.F. Veremeenko, N. Vinokurov
    BINP SB RAS, Novosibirsk, Russia
  The control system for the magnetic system of the free electron laser (FEL) is described. The characteristics and structure of the power supply system are presented. The power supply control system based on embedded intelligent controllers with the CAN-BUS interface is considered in detail. The control software structure and capabilities are described. Besides, software tools for power supply diagnostics are described.  
poster icon Poster MOPMU021 [0.291 MB]  
WEPMS020 NSLS-II Booster Power Supplies Control 1018
  • P.B. Cheblakov, S.E. Karnaev, S.S. Serednyakov
    BINP SB RAS, Novosibirsk, Russia
  • W. Louie, Y. Tian
    BNL, Upton, Long Island, New York, USA
  The NSLS-II booster Power Supplies (PSs) [1] are divided into two groups: ramping PSs providing passage of the beam during the beam ramp in the booster from 200 MeV up to 3 GeV at 300 ms time interval, and pulsed PSs providing beam injection from the linac and extraction to the Storage Ring. A special set of devices was developed at BNL for the NSLS-II magnetic system PSs control: Power Supply Controller (PSC) and Power Supply Interface (PSI). The PSI has one or two precision 18-bit DACs, nine channels of ADC for each DAC and digital input/outputs. It is capable of detecting the status change sequence of digital inputs with 10 ns resolution. The PSI is placed close to current regulators and is connected to the PSC via fiber-optic 50 Mbps data link. The PSC communicates with EPICS IOC through a 100 Mbps Ethernet port. The main function of IOC includes ramp curve upload, ADC waveform data download, and various process variable control. The 256 Mb DDR2 memory on PSC provides large storage for up to 16 ramping tables for the both DACs, and 20 second waveform recorder for all the ADC channels. The 100 Mbps Ethernet port enables real time display for 4 ADC waveforms. This paper describes a project of the NSLS-II booster PSs control. Characteristic features of the ramping magnets control and pulsed magnets control in a double-injection mode of operation are considered in the paper. First results of the control at PS testing stands are presented.
[1] Power Supply Control System of NSLS-II, Y. Tian, W. Louie, J. Ricciardelli, L.R. Dalesio, G. Ganetis, ICALEPCS2009, Japan
poster icon Poster WEPMS020 [1.818 MB]  
WEPMU001 Temperature Measurement System of Novosibirsk Free Electron Laser 1044
  • S.S. Serednyakov, B.A. Gudkov, V.R. Kozak, E.A. Kuper, P.A. Selivanov, S.V. Tararyshkin
    BINP SB RAS, Novosibirsk, Russia
  This paper describes the temperature-monitoring system of Novosibirsk FEL. The main task of this system is to prevent the FEL from being overheated and its individual components from being damaged. The system accumulates information from a large number of temperature sensors installed on different parts of the FEL facility, which allows measuring the temperature of the vacuum chamber, cooling water, and magnetic elements windings. Since the architecture of this system allows processing information not only from temperature sensors, it is also used to measure, for instance, vacuum parameters and some parameters of the cooling water. The software part of this system is integrated into the FEL control system, so readings taken from all sensors are recorded to the database every 30 seconds.  
poster icon Poster WEPMU001 [0.484 MB]