Online Data Processing at ID26

RIXS plotter

RixsPlotter displays the currently acquiring RIXS plane in a Flint widget. It is best to instantiate the object in the Bliss session setup script but you can also do it from the command line:

from blissoda.id26.rixs_plotter import RixsPlotter
rixs_plotter = RixsPlotter()

Several instances may coexist (e.g. for different types of RIXS planes). The current configuration can be displayed like this:

OPTICS [11]: rixs_plotter

Methods

enable()

Enables the workflow and sets rixs_plotter.filename to the current SCAN_SAVING.filename. To plot a different dataset, change the attribute directly:

rixs_plotter.filename = '/data/id26/inhouse/.../sample_0002.h5'

disable()

Disables the workflow.

reset()

Resets start_scan_id and stop_scan_id, allowing a new map to be plotted automatically. Call enable() after the reset.

The workflow can also be triggered manually:

rixs_plotter(2, 25)   # Create a RIXS plot from scans 2 to 25.

Y-axis Options

The Y-axis can be configured to plot either the emission energy (default) or the energy transfer (incident energy - emission energy).

rixs_plotter.y_axis = "energy transfer"
# or
rixs_plotter.y_axis = "emission energy"

Data mappings

Before running or enabling the plotter, make sure the data mappings match your measurement variables (motors/counters). You can change them by simple assignment:

rixs_plotter.data_mappings['x'] = ".1/measurement/elapsed_time"
rixs_plotter.data_mappings['y'] = ".1/instrument/positioners/xes_en"
rixs_plotter.data_mappings['signal'] = ".1/measurement/sim_gaussian_1"