supply and installation of x-ray diffraction equipment and accessories , supply and installation of x-ray diffraction equipment and accessoriesas per technical specification in annexure-a , optional item: , a 4-bounce ge(220s) monochromator for high resolution measurements , a variable temperature stage ranging from -180 deg c to +400 deg c that is mounted in a eulerian cradle for thin-film, powder and solid samples , an attachment for small angle x-ray scattering (saxs) measurement (in capillary) along with evacuated flight tube and necessary software , dedicated software for rietveld analysis (minimum 10 multiuser protected licenses) , additional axial and equatorial soller slits of different sizes , optional item: amc of the equipment for a period of 4 yearsafter the standard warranty , 1st year amc after expiry of the standard warranty , 2nd year amc , 3rd year amc , 4th year amc