def _mask_t0_crop(self, run_number, name):
"""
Load a run into a workspace with:
1. Masked detectors
2. Delayed emission time from moderator removed
3. Conversion of units to momentum
4. Remove events outside the valid momentum range
:param run_number: BASIS run number
:param name: name for the output workspace
:return: workspace object
"""
ws = self._load_single_run(run_number, name)
MaskDetectors(ws, MaskedWorkspace=self._t_mask)
ws = ModeratorTzeroLinear(InputWorkspace=ws.name(),
Gradient=self._tzero['gradient'],
Intercept=self._tzero['intercept'],
OutputWorkspace=ws.name())
# Correct old DAS shift of fast neutrons. See GitHub issue 23855
if self._das_version == VDAS.v1900_2018:
ws = self.add_previous_pulse(ws)
ws = ConvertUnits(ws, Target='Momentum', OutputWorkspace=ws.name())
ws = CropWorkspace(ws,
OutputWorkspace=ws.name(),
XMin=self._momentum_range[0],
XMax=self._momentum_range[1])
return ws
def _mask_t0_crop(self, run_number, name):
"""
Load a run into a workspace with:
1. Masked detectors
2. Delayed emission time from moderator removed
3. Conversion of units to momentum
4. Remove events outside the valid momentum range
:param run_number: BASIS run number
:param name: name for the output workspace
:return: workspace object
"""
ws = self._load_single_run(run_number, name)
MaskDetectors(ws, MaskedWorkspace=self._t_mask)
ws = ModeratorTzeroLinear(InputWorkspace=ws.name(),
Gradient=self._tzero['gradient'],
Intercept=self._tzero['intercept'],
OutputWorkspace=ws.name())
# Correct old DAS shift of fast neutrons. See GitHub issue 23855
if self._das_version == VDAS.v1900_2018:
ws = self.add_previous_pulse(ws)
ws = ConvertUnits(ws, Target='Momentum', OutputWorkspace=ws.name())
ws = CropWorkspace(ws,
OutputWorkspace=ws.name(),
XMin=self._momentum_range[0],
XMax=self._momentum_range[1])
return ws
def _save_t0(self, run_number, name='_t_ws'):
"""
Create temporary events file with delayed emission time from
moderator removed
:param run: run number
:param name: name for the output workspace
:return: file name of event file with events treated with algorithm
ModeratorTzeroLinear.
"""
ws = self._load_single_run(run_number, name)
ws = ModeratorTzeroLinear(InputWorkspace=ws.name(),
Gradient=self._tzero['gradient'],
Intercept=self._tzero['intercept'],
OutputWorkspace=ws.name())
# Correct old DAS shift of fast neutrons. See GitHub issue 23855
if self._das_version == VDAS.v1900_2018:
ws = self.add_previous_pulse(ws)
file_name = self._spawn_tempnexus()
SaveNexus(ws, file_name)
return file_name
def _save_t0(self, run_number, name='_t_ws'):
"""
Create temporary events file with delayed emission time from
moderator removed
:param run: run number
:param name: name for the output workspace
:return: file name of event file with events treated with algorithm
ModeratorTzeroLinear.
"""
ws = self._load_single_run(run_number, name)
ws = ModeratorTzeroLinear(InputWorkspace=ws.name(),
Gradient=self._tzero['gradient'],
Intercept=self._tzero['intercept'],
OutputWorkspace=ws.name())
# Correct old DAS shift of fast neutrons. See GitHub issue 23855
if self._das_version == VDAS.v1900_2018:
ws = self.add_previous_pulse(ws)
file_name = self._spawn_tempnexus()
SaveNexus(ws, file_name)
return file_name