fsweep
Description
fsweep is a 1-motor continuous scan like fscan. Unlike fscan, fsweep covers all angular space by rewinding the motor for each acquisition. Each acquisition can be viewed as a 1-dimensional scan of a single point. To align the end of one exposure with the start of the following one, triggers are always in POSITION and lima detectors' trigger modes are set to EXTERNAL_GATE.
This scan is typically used on single crystal diffraction experiment. Particularly, when the exposure time is longer than the readout time and the readout time exceeds the motor rewind time. Finterlaced will be faster, if this does not apply.
The lima accumulation mode is not supported.
Parameters
| parameter | description | |
|---|---|---|
| motor | bliss motor object (not motor name string !!) | |
| start_pos | start position of first acquisition | |
| acq_size | size of one acquisition in position | |
| acq_time | [sec] | acquisition time |
| npoints | total number of points |
Common parameters implemented: save_flag, display_flag, sync_encoder, home_rotation, acc_margin, sampling_time.