SANSSliceEvent dialog.
Table of Contents
| Name | Direction | Type | Default | Description |
|---|---|---|---|---|
| SANSState | Input | Dictionary | A property manager which fulfills the SANSState contract. | |
| InputWorkspace | Input | MatrixWorkspace | Mandatory | The input workspace. If it is an event workspace, then the slice is taken. In case of a Workspace2D the original workspace is returned |
| InputWorkspaceMonitor | Input | MatrixWorkspace | Mandatory | The monitor workspace associated with the main input workspace. |
| DataType | Input | string | Sample | The component of the instrument which is to be reduced. Allowed values: [‘Sample’, ‘Can’] |
| SliceEventFactor | Output | number | The factor of the event slicing. This corresponds to the proportion of the the total proton charge, which the slice corresponds to. | |
| OutputWorkspace | Output | MatrixWorkspace | Mandatory | The sliced workspace |
| OutputWorkspaceMonitor | Output | MatrixWorkspace | Mandatory | The output monitor workspace which has the correct slice factor applied to it. |
This algorithm creates a sliced workspaces from an event-based SANS input workspace according to the settings in the state object. The algorithm will extract a slice based on a start and end time which are set in the state object. In addtion the data type, ie if the slice is to be taken from a sample or a can workspace can be specified. Note that the monitor workspace is not being sliced but scaled by the ratio of the proton charge of the sliced worspace to the full workspace. Currently the mask mechanism is implemented for SANS2D, LOQ and LARMOR.
The required information for the slice operation is retrieved from a state object.
The elements of the slice state are:
| Entry | Type | Description | Mandatory | Default value |
|---|---|---|---|---|
| start_time | List of Float | The first entry is used as a start time for the slice | No | None |
| end_time | List of Float | The first entry is used as a stop time for the slice | No | None |
Note that these settings should be only populated via the GUI or the Python Interface of ISIS SANS.
The Sample setting performs regular slicing
The Can setting does not apply slicing to the specified workspaces.
Categories: Algorithms | SANS\SliceEvent
Python: SANSSliceEvent.py