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.

Author: Krzysztof WojtkowiakSupervisor: Sławomir Zalewski

PhDFrank Laboratory of Neutron

Physics

Outline

Experiment Construction of the system Information about communication Benefits of the project

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

Construction of the system

Pin with monocrystal

Angular position indicator

Gearbox Stepper motor

Information about communication

Controler of stepper motor: OSM-17RA-BL

Data transmisionstandard: RS-485

Communicationsprotocol:MODBUS RTU

About software

Programming environment: Borland C++ Builder 6

Additional library: ComPort 3.0

Window of created software

Benefits of the project

Acceleration engine calibration Control via Gui People are not exposed to radiation

Thank you for your attention