#name   Format    Ni
Ni 	2
#
#  Elem	 rho(g/cm^3)	Gas/Solid(1/0)  refl.index Birks c
#      rho may be 8.902
1         8.85            0              0        0 0 0
# 	Z	A  	N
	28	58.7	1
#  ⟨Z/A⟩   I[eV]   a       k      x0    x1     Cbar  delta0
 0.4770	 311.0   0.1650  2.8430 -0.0566  3.1851   4.3115 0.10
