def __init__(self, bl=None, instrument='origin', d_offset=0, **kwargs):
"""
inputs:
bl: instance of the beamline class from xrt
instrument: LCLS instrument ('TXI','XPP','XCS','MFX','CXI','MEC')
d_offset: offset distance from the sample position
**kwargs: kwargs argument to pass to GeometricSource instance
"""
GeometricSource.__init__(self, bl=bl, name=instrument, **kwargs)
FWHM, div = self.LCLS_source_properties()
d = {
'origin': 0,
'TXI': 140,
'XPP': 150,
'XCS': 400,
'MFX': 415,
'CXI': 425,
'MEC': 440
} #[m]
# Sample position for each instrument
d = d[instrument] + d_offset
FWHM = FWHM + div * d #um
self.dx = FWHM / 1000 / 2.634 # sigma [mm]
self.dz = FWHM / 1000 / 2.634 # sigma [mm]
self.dxprime = div / 1e6 # [rad]
self.dzprime = div / 1e6 # [rad]
def __init__(self, *args, **kwargs):
self.enstep = kwargs.pop('enstep', None)
self.ensig = kwargs.pop('ensig', None)
self.enmix = kwargs.pop('enmix', 1)
GeometricSource.__init__(self, *args, **kwargs)
self.distE = 'lines'