SANSLoad dialog.
Table of Contents
| Name | Direction | Type | Default | Description |
|---|---|---|---|---|
| SANSState | Input | Dictionary | A property manager which fulfills the SANSState contract. | |
| PublishToCache | Input | boolean | True | Publish the calibration workspace to a cache, in order to avoid reloading for subsequent runs. |
| UseCached | Input | boolean | True | Checks if there are loaded files available. If they are, those files are used. |
| MoveWorkspace | Input | boolean | False | Move the workspace according to the SANSState setting. This might be usefulfor manual inspection. |
| BeamCoordinates | Input | dbl list | The coordinates which is used to position the instrument component(s). If the workspaces should be loaded with an initial move, then this needs to be specified. | |
| Component | Input | string | Component that should be moved. If the workspaces should be loaded with an initial move, then this needs to be specified. | |
| SampleScatterWorkspace | Output | Workspace | The sample scatter workspace. This workspace does not contain monitors. | |
| SampleScatterMonitorWorkspace | Output | Workspace | The sample scatter monitor workspace. This workspace only contains monitors. | |
| SampleTransmissionWorkspace | Output | MatrixWorkspace | The sample transmission workspace. | |
| SampleDirectWorkspace | Output | MatrixWorkspace | The sample scatter direct workspace. | |
| NumberOfSampleScatterWorkspaces | Output | number | The number of workspace for sample scatter. | |
| NumberOfSampleTransmissionWorkspaces | Output | number | The number of workspace for sample transmission. | |
| NumberOfSampleDirectWorkspaces | Output | number | The number of workspace for sample direct. | |
| CanScatterWorkspace | Output | MatrixWorkspace | The can scatter workspace. This workspace does not contain monitors. | |
| CanScatterMonitorWorkspace | Output | MatrixWorkspace | The can scatter monitor workspace. This workspace only contains monitors. | |
| CanTransmissionWorkspace | Output | MatrixWorkspace | The can transmission workspace. | |
| CanDirectWorkspace | Output | MatrixWorkspace | The sample scatter direct workspace. | |
| NumberOfCanScatterWorkspaces | Output | number | The number of workspace for can scatter. | |
| NumberOfCanTransmissionWorkspaces | Output | number | The number of workspace for can transmission. | |
| NumberOfCanDirectWorkspaces | Output | number | The number of workspace for can direct. |
This algorithm loads SANS data sets. The loading can handle nexus and raw files which can be plain or multi-period data. The SANS data sets which can be loaded with this algorithm are:
In addition a calibration file which is applied after the data has been loaded can be specified. This calibration workspace can be used when the PublishToADS option is enabled.
The required information for the loading operation is retrieved from a SANSState input. It contains information about the data files which are involved during the calibration process. It also contains information about the calibration file which is applied to the scatter workspaces.
The elements of the SANSState are:
| Entry | Type | Description | Mandatory |
|---|---|---|---|
| sample_scatter | String | The name of the sample scatter file | Yes |
| sample_scatter_period | Int | The selected period or (0 for all) | No |
| sample_transmission | String | The name of the sample transmission file | No, only if sample_direct was specified |
| sample_transmission_period | Int | The selected period or (0 for all) | No |
| sample_direct | String | The name of the sample direct file | No, only if sample_transmission was specified |
| sample_direct_period | Int | The selected period or (0 for all) | No |
| can_scatter | String | The name of the can scatter file | No, only if can_transmission was specified |
| can_scatter_period | Int | The selected period or (0 for all) | No |
| can_transmission | String | The name of the can transmission file | No, only if can_direct was specified |
| can_transmission_period | Int | The selected period or (0 for all) | No |
| can_direct | String | The name of the can direct file | No, only if can_direct was specified |
| can_direct_period | Int | The selected period or (0 for all) | No |
| calibration | String | The name of the calibration file | No |
| sample_scatter_run_number | Int | The run number of the sample scatter | auto setup |
| sample_scatter_is_multi_period | Bool | If the sample is multi-period | auto setup |
| instrument | SANSInstrument enum | The name of the calibration file | auto setup |
| idf_file_path | String | The path to the IDF | auto setup |
| ipf_file_path | String | The path to the IPF | auto setup |
Note that these settings should be only populated via the GUI or the Python Interface of ISIS SANS.
The PublishToCache setting will store the calibration workspace on the AnalysisDataService when it has been loaded for the first time. The loaded workspaces themselves will not be published.
The UseCached setting will look for appropriate workspaces on the AnalysisDataService and use these workspaces instead of reloading them.
It is possible to perform an initial, instrument-specific move of the selected component. Currently this move mechanism is implemented for SANS2D, LOQ and LARMOR. Other instruments will not be moved. If MoveWorkspace is selected, then a component and a beam position needs to be selected.
Categories: Algorithms | SANS\Load
Python: SANSLoad.py (last modified: 2017-12-21)