Peak Profile of different instruments Configuration FWHM Pk Ht to (deg) Bkg Ratio Rigaku,LHS,0.5 DS,0.3mm RS 0.076 528 Rigaku,LHS,1 DS,0.3mm RS 0.097 293 Rigaku,RHS,0.5DS,0.3mm RS 0.124 339 Rigaku,RHS,1 DS,0.3mm RS 0.139 266 X'Pert Pro,High-speed,0.25 DS 0.060 81 X'Pert Pro,High-speed,0.5 DS 0.077 72 X'Pert,0.09 Parallel Beam Collimator 0.175 50 X'Pert,0.27 Parallel Beam Collimator 0.194 55 66 Configuration FWHM (deg) Pk Ht to Bkg Ratio Rigaku, LHS, 0.5° DS, 0.3mm RS 0.076 528 Rigaku, LHS, 1° DS, 0.3mm RS 0.097 293 Rigaku, RHS, 0.5° DS, 0.3mm RS 0.124 339 Rigaku, RHS, 1° DS, 0.3mm RS 0.139 266 X’Pert Pro, High-speed, 0.25° DS 0.060 81 X’Pert Pro, High-speed, 0.5° DS 0.077 72 X’Pert, 0.09° Parallel Beam Collimator 0.175 50 X’Pert, 0.27° Parallel Beam Collimator 0.194 55 Peak Profile of different instruments