the detector efficiency can be fitted VS energy. The fit can be interpolated and converted back to calib yields for the elements/lines for which no experimental info was available (i.e. construct the calib file)
Added "SAngFract" to the EXP_PARAM structure (and needed for deNormalize2() )
Added "Fluence" to the EXP_PARAM structure (and needed for deNormalize2() )
Note: This function is only valid for 10 Z2 in range [10,99]
finish implementation of secondary fluorescence
implement forward geometry