5-circle diffractometer, mythen 1D detector and TetrAMM picoammeter interfacing in SPEC through EPICS for perform x-ray reflectivity and x-ray absorption measurement at BL-09, Indus-2

摘要

The EXAFS BL-09 beamline of Indus-2, RRCAT have been in growing demand owing to their outstanding performance for x-ray absorption (XAFS) data collection in transmission mode and fluorescence mode. To take full advantage of the state-of-the-art of this beamline, a significant effort has been devoted for designing of 5-Circle diffractometer to perform depth-selective XAFS study and fast, intuitive beamline controls through EPICS and SPEC diffractometer-control program to perform x-ray reflectivity (XRR) and XAFS measurements. In the present work, we mainly focus on the communication of Si(111) double crystal monochromator and 3 ionization chambers whose output is connected with 4 channel TetrAMM picoammeter through EPICS for XAFS measurement and using Mythen Detector (1D) for X-ray reflectivity (XRR) measurement at various energies.