Online Data Processing for Streamline HT-XRPD

Fully automated Powder diffraction (scanning and data processing)

Usage

DEMO_SESSION [1]: from blissoda.demo.streamline_scanner import streamline_scanner,sample_changer
DEMO_SESSION [2]: streamline_scanner.eject()
DEMO_SESSION [3]: streamline_scanner.load()
DEMO_SESSION [4]: streamline_scanner.calib(0.1, sample_index=3)
DEMO_SESSION [5]: streamline_scanner.run(0.1)

The arguments of calib and run are the same as sct with some additional keyword arguments. The calibration is done by selecting a specific sample sample_index.

Installation

Installation on lid31dat1 (data processing)

One conda environment called ewoksworker

Dependencies installed:

pip install ewoksjob[blissworker]
pip install ewoksxrpd

Processes registered with the supervisor

• ewoksmonitor: monitor data processing http://lid31dat1:5555/

• ewoksworker: celery worker that does the actual calculation

Installation on bibhelm (acquisition control)

Add ewoks configuration to beacon.

Dependencies installed in the bliss environment

pip install blissoda[streamline]

Install and configure the streamline sample changer.

Add this to the bliss session setup script that needs the streamline scanner

from blissoda.streamline.streamline_scanner import StreamlineScanner as _StreamlineScanner
streamline_scanner = _StreamlineScanner()