smedge: smeared edge
A smeared edge (Ebisawa PhD thesis, implemented by Frank Marshall).
|
1 E < Ec |
|
where:
par1= Ec |
the threshold energy (keV) |
par2= f |
the maximum absorption factor at threshold |
par3= a |
index for photo-electric cross-section (normally –2.67) |
par4= W |
smearing width (keV) |