A one-coordinate gaseous detector of soft X-ray photons for wide-angle X-ray scattering (WAXS) studies is being developed. The detector operates in counting mode and is based on multi-stage Gas Electron Multiplier(GEM). Full size detector is assembled and has 67 degrees aperture with 350mm distance to the source, readout multi-strip structure with 2048 strips at 0.2mm pitch and is partially equipped with readout electronics in the central part. Main parameters of the detector have been measured with 8keV X-ray beam at VEPP-3 synchrotron ring. Spatial resolution of 470 um (FWHM) has been demonstrated that will allow to distinguish diffraction spots at 0.1 degrees.
@article{arxiv.0711.4570,
title = {Development of one-coordinate gaseous detector for wide angle diffraction studies},
author = {V. M. Aulchenko and P. A. Papushev and M. R. Sharafutdinov and L. I. Shekhtman and V. M. Titov and B. P. Tolochko and V. V. Zhulanov},
journal= {arXiv preprint arXiv:0711.4570},
year = {2008}
}