material	thickness	bulkdensity	roughness_type	srough	optconst_rdb
S	N	N	S	N	S
Ir	327.8525	1	nc	4.47625	/proj/axaf/Simul/databases/optconsts/synch_19991215/065o_optconsts_merged.rdb
Cr	97.22625	1	nc	6.855	/proj/axaf/simul/databases/optconsts/Cr_Gullikson95.rdb
Zerodur	1e+30	1	nc	7.065	/proj/axaf/simul/databases/optconsts/Zerodur_Gullikson95.rdb