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Au t hor: Krzysztof Wojtkowiak Supervisor: Sławomir Zalewski PhD

Software suport for control of neutron energy analyzers working in backscattering geometry for the analysis of IINS and QENS of sprectrometer NERA. Au t hor: Krzysztof Wojtkowiak Supervisor: Sławomir Zalewski PhD Frank Laboratory of Neutron Physics. Outline. Experiment

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Au t hor: Krzysztof Wojtkowiak Supervisor: Sławomir Zalewski PhD

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  1. Software suport for control of neutron energy analyzers working in backscattering geometry for the analysis of IINS and QENSof sprectrometer NERA. Author: Krzysztof Wojtkowiak Supervisor: Sławomir Zalewski PhD Frank Laboratory of Neutron Physics

  2. Outline • Experiment • Construction of the system • Information about communication • Benefits of the project

  3. Experiment • NERA spectrometer is used to study inelastic scatering of electrons. • Three kind of measurements: QENS (quasi elastic neutron scatering), IINS (inelastic incoherent neutron scatering) and ND (neutron diffraction) • 16 meausuring segments (each segment contains 2 stepper motors and 2 monocrystals) • Bragg Reflection used to selected neutron energy

  4. Construction of the system • Pin with monocrystal • Angular position indicator • Gearbox • Stepper motor

  5. Information about communication • Controler of stepper motor: OSM-17RA-BL • Data transmisionstandard: RS-485 • Communicationsprotocol:MODBUS RTU

  6. About software • Programming environment: Borland C++ Builder 6 • Additional library: ComPort 3.0 Window of created software

  7. Benefits of the project • Acceleration engine calibration • Control via Gui • People are not exposed to radiation

  8. Thank you for your attention

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