#name   Format    NaI
NaI 	2
#
#  Elem	 rho(g/cm^3)	Gas/Solid(1/0)   refl.index Birks C

2         3.67			0          1.775     0 0 0
# 	Z	A  	N
	11	22.98	1
	53	126.9	1
#  ⟨Z/A⟩   I[eV]   a       k      x0    x1     Cbar  delta0
 0.42697  452.0  0.1252  3.0398  0.1203  3.5920  6.0572 0.00
