def _group_and_SofQW(self, wsName, etRebins, isSample=True):
""" Transforms from wavelength and detector ID to S(Q,E)
@param wsName: workspace as a function of wavelength and detector id
@return: S(Q,E)
"""
api.ConvertUnits(InputWorkspace=wsName,
OutputWorkspace=wsName,
Target='DeltaE',
EMode='Indirect')
api.CorrectKiKf(InputWorkspace=wsName,
OutputWorkspace=wsName,
EMode='Indirect')
api.Rebin(InputWorkspace=wsName,
OutputWorkspace=wsName,
Params=etRebins)
if self._groupDetOpt != "None":
if self._groupDetOpt == "Low-Resolution":
grp_file = "BASIS_Grouping_LR.xml"
else:
grp_file = "BASIS_Grouping.xml"
# If mask override used, we need to add default grouping file
# location to search paths
if self._overrideMask:
config.appendDataSearchDir(DEFAULT_MASK_GROUP_DIR)
api.GroupDetectors(InputWorkspace=wsName,
OutputWorkspace=wsName,
MapFile=grp_file,
Behaviour="Sum")
wsSqwName = wsName + '_divided_sqw' if isSample and self._doNorm else wsName + '_sqw'
api.SofQW3(InputWorkspace=wsName,
OutputWorkspace=wsSqwName,
QAxisBinning=self._qBins,
EMode='Indirect',
EFixed='2.0826')
return wsSqwName
def _group_and_SofQW(self, wsName, etRebins, isSample=True):
""" Transforms from wavelength and detector ID to S(Q,E)
@param wsName: workspace as a function of wavelength and detector id
@param etRebins: final energy domain and bin width
@param isSample: discriminates between sample and vanadium
@return: S(Q,E)
"""
sapi.ConvertUnits(InputWorkspace=wsName,
OutputWorkspace=wsName,
Target='DeltaE',
EMode='Indirect')
sapi.CorrectKiKf(InputWorkspace=wsName,
OutputWorkspace=wsName,
EMode='Indirect')
sapi.Rebin(InputWorkspace=wsName,
OutputWorkspace=wsName,
Params=etRebins)
if self._groupDetOpt != "None":
if self._groupDetOpt == "Low-Resolution":
grp_file = "BASIS_Grouping_LR.xml"
else:
grp_file = "BASIS_Grouping.xml"
# If mask override used, we need to add default grouping file
# location to search paths
if self._overrideMask:
config.appendDataSearchDir(DEFAULT_MASK_GROUP_DIR)
sapi.GroupDetectors(InputWorkspace=wsName,
OutputWorkspace=wsName,
MapFile=grp_file,
Behaviour="Sum")
wsSqwName = wsName + '_divided_sqw' if isSample and self._doNorm else wsName + '_sqw'
sapi.SofQW3(InputWorkspace=wsName,
QAxisBinning=self._qBins,
EMode='Indirect',
EFixed=self._reflection["default_energy"],
OutputWorkspace=wsSqwName)
# Rebin the vanadium within the elastic line
if not isSample:
sapi.Rebin(InputWorkspace=wsSqwName,
OutputWorkspace=wsSqwName,
Params=self._reflection["vanadium_bins"])
return wsSqwName
def _group_and_SofQW(self, wsName, prefix, etRebins, isSample=True):
r"""
Transforms from wavelength and detector ID to S(Q,E)
Parameters
----------
wsName: str
Name of a workspace as a function of wavelength and detector id
prefix: str
Name prefix for output workspaces and files
etRebins: list
Final energy domain and bin width
isSample: bool
Discriminates between sample and vanadium
Returns
-------
str
Name of S(Q,E) workspace
"""
sapi.ConvertUnits(InputWorkspace=wsName,
OutputWorkspace=wsName,
Target='DeltaE',
EMode='Indirect',
EFixed=self._reflection['default_energy'])
sapi.CorrectKiKf(InputWorkspace=wsName,
OutputWorkspace=wsName,
EMode='Indirect',
EFixed=self._reflection['default_energy'])
sapi.Rebin(InputWorkspace=wsName,
OutputWorkspace=wsName,
Params=etRebins)
if self._groupDetOpt != 'None':
if self._groupDetOpt == 'Low-Resolution':
grp_file = 'BASIS_Grouping_LR.xml'
else:
grp_file = 'BASIS_Grouping.xml'
# If mask override used, we need to add default grouping file
# location to search paths
if self._overrideMask:
mantid_config.appendDataSearchDir(DEFAULT_MASK_GROUP_DIR)
sapi.GroupDetectors(InputWorkspace=wsName,
OutputWorkspace=wsName,
MapFile=grp_file,
Behaviour='Sum')
# Output NXSPE file (must be done before transforming the
# vertical axis to point data)
if isSample and self._nsxpe_do:
extension = '.nxspe'
run = mtd[wsName].getRun()
if run.hasProperty(self._nxspe_psi_angle_log):
psi_angle_logproperty = \
run.getProperty(self._nxspe_psi_angle_log)
psi_angle = np.average(psi_angle_logproperty.value)
psi_angle += self._nxspe_offset
nxspe_filename = prefix + extension
sapi.SaveNXSPE(InputWorkspace=wsName,
Filename=nxspe_filename,
Efixed=self._reflection['default_energy'],
Psi=psi_angle,
KiOverKfScaling=1)
else:
error_message = 'Runs have no log entry named {}'\
.format(self._nxspe_psi_angle_log)
self.log().error(error_message)
wsSqwName = prefix if isSample is True else wsName
wsSqwName += '_divided_sqw' if self._doNorm is True else '_sqw'
sapi.SofQW3(InputWorkspace=wsName,
QAxisBinning=self._qBins,
EMode='Indirect',
EFixed=self._reflection['default_energy'],
OutputWorkspace=wsSqwName)
# Rebin the vanadium within the elastic line
if not isSample:
sapi.Rebin(InputWorkspace=wsSqwName,
OutputWorkspace=wsSqwName,
Params=self._reflection['vanadium_bins'])
return wsSqwName
def PyExec(self):
config['default.facility'] = "SNS"
config['default.instrument'] = self._long_inst
self._doIndiv = self.getProperty("DoIndividual").value
self._etBins = self.getProperty(
"EnergyBins").value / MICROEV_TO_MILLIEV
self._qBins = self.getProperty("MomentumTransferBins").value
self._noMonNorm = self.getProperty("NoMonitorNorm").value
self._maskFile = self.getProperty("MaskFile").value
self._groupDetOpt = self.getProperty("GroupDetectors").value
datasearch = config["datasearch.searcharchive"]
if datasearch != "On":
config["datasearch.searcharchive"] = "On"
# Handle masking file override if necessary
self._overrideMask = bool(self._maskFile)
if not self._overrideMask:
config.appendDataSearchDir(DEFAULT_MASK_GROUP_DIR)
self._maskFile = DEFAULT_MASK_FILE
api.LoadMask(Instrument='BASIS',
OutputWorkspace='BASIS_MASK',
InputFile=self._maskFile)
# Work around length issue
_dMask = api.ExtractMask('BASIS_MASK')
self._dMask = _dMask[1]
api.DeleteWorkspace(_dMask[0])
# Do normalization if run numbers are present
norm_runs = self.getProperty("NormRunNumbers").value
self._doNorm = bool(norm_runs)
self.log().information("Do Norm: " + str(self._doNorm))
if self._doNorm:
if ";" in norm_runs:
raise SyntaxError("Normalization does not support run groups")
# Setup the integration (rebin) parameters
normRange = self.getProperty("NormWavelengthRange").value
self._normRange = [
normRange[0], normRange[1] - normRange[0], normRange[1]
]
# Process normalization runs
self._norm_run_list = self._getRuns(norm_runs)
for norm_set in self._norm_run_list:
extra_extension = "_norm"
self._normWs = self._makeRunName(norm_set[0])
self._normWs += extra_extension
self._normMonWs = self._normWs + "_monitors"
self._sumRuns(norm_set, self._normWs, self._normMonWs,
extra_extension)
self._calibData(self._normWs, self._normMonWs)
api.Rebin(InputWorkspace=self._normWs, OutputWorkspace=self._normWs,\
Params=self._normRange)
api.FindDetectorsOutsideLimits(InputWorkspace=self._normWs,\
OutputWorkspace="BASIS_NORM_MASK")
self._run_list = self._getRuns(self.getProperty("RunNumbers").value)
for run_set in self._run_list:
self._samWs = self._makeRunName(run_set[0])
self._samMonWs = self._samWs + "_monitors"
self._samWsRun = str(run_set[0])
self._sumRuns(run_set, self._samWs, self._samMonWs)
# After files are all added, run the reduction
self._calibData(self._samWs, self._samMonWs)
if self._doNorm:
api.MaskDetectors(Workspace=self._samWs,\
MaskedWorkspace='BASIS_NORM_MASK')
api.Divide(LHSWorkspace=self._samWs, RHSWorkspace=self._normWs,\
OutputWorkspace=self._samWs)
api.ConvertUnits(InputWorkspace=self._samWs,
OutputWorkspace=self._samWs,
Target='DeltaE',
EMode='Indirect')
api.CorrectKiKf(InputWorkspace=self._samWs,
OutputWorkspace=self._samWs,
EMode='Indirect')
api.Rebin(InputWorkspace=self._samWs,
OutputWorkspace=self._samWs,
Params=self._etBins)
if self._groupDetOpt != "None":
if self._groupDetOpt == "Low-Resolution":
grp_file = "BASIS_Grouping_LR.xml"
else:
grp_file = "BASIS_Grouping.xml"
# If mask override used, we need to add default grouping file location to
# search paths
if self._overrideMask:
config.appendDataSearchDir(DEFAULT_MASK_GROUP_DIR)
api.GroupDetectors(InputWorkspace=self._samWs,
OutputWorkspace=self._samWs,
MapFile=grp_file,
Behaviour="Sum")
self._samSqwWs = self._samWs + '_sqw'
api.SofQW3(InputWorkspace=self._samWs,
OutputWorkspace=self._samSqwWs,
QAxisBinning=self._qBins,
EMode='Indirect',
EFixed=DEFAULT_ENERGY)
dave_grp_filename = self._makeRunName(self._samWsRun,
False) + ".dat"
api.SaveDaveGrp(Filename=dave_grp_filename,
InputWorkspace=self._samSqwWs,
ToMicroEV=True)
processed_filename = self._makeRunName(self._samWsRun,
False) + "_sqw.nxs"
api.SaveNexus(Filename=processed_filename,
InputWorkspace=self._samSqwWs)
