Jungfrau GUI architecture

This page summarizes the high-level structure of the Jungfrau GUI, the external services it depends on, and how the main UI components coordinate data acquisition, TEM control, and metadata tagging.

Architecture diagram

Jungfrau GUI architecture diagram

Click the diagram to open it in a new tab and zoom in.

Quick reading guide

Entry point

The application starts in main_ui.py: connect to Redis, create the ZMQ receiver, create the main window, then enter the Qt event loop.

Main window

ApplicationWindow (ui_main_window.py) is the composition root: it owns the pyqtgraph display objects and hosts the three main tabs.

Tabs

  • VisualizationPanel (visualization_panel.py): stream viewing + backend control (live/collect/pedestal/cancel)

  • TemControls (tem_controls.py): TEM control pipeline (actions + worker + tasks)

  • FileOperations (file_operations.py): experiment metadata/UI + snapshot orchestration + metadata tagging

External services

  • Noether hosts the Redis config DB, Jungfraujoch backend (ZeroMQ PUB/SUB), HDF5 storage, and the metadata updater server.

  • TEM PC hosts server_tem.py (pyJEM endpoint) controlling the microscope.

Notes on external libraries