Abstract
We report here a novel internal x-ray slit assembly to carry out laboratory based high pressure x-ray diffraction (HPXRD) experiments in a Mao Bell type diamond anvil cell. In this assembly a tiny sheet of lead with a 100 micron hole immediately below the diamond table acts as an x-ray slit. Data resolution and statistics were compared with the older slit. This novel slit assembly has two major advantages (i) eliminates cumbersome and lengthy procedure usually adopted for alignment of x-ray slit (ii) provides high flux and improved resolution due to the comparatively low beam divergence and effective utilization of the maxima of the beam profile.
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