#name   Format    carbon (graphite)
Diamond 	2
#
#  Elem	 rho(g/cm^3)	Gas/Solid(1/0)  refl.index  Birks c

1         3.51           0             0        0 0 0
# 	Z	A  	N
	6	12	1

#  ⟨Z/A⟩   I[eV]   a       k      x0    x1     Cbar  delta0
  0.5	 78.0  0.2614  2.8697 -0.1135  2.2458   2.4271 0.12
