Documentation

Based on ITk week Sep 2025 presentation.

Communication

Twiki: https://twiki.cern.ch/twiki/bin/view/Atlas/ITkPixelModules Mailing lists

• General mailing list: atlas-itk-pixel-modules@cern.ch
• Quads: atlas-itk-pixel-modules-quadassembly@cern.ch
• Triplets: atlas-itk-pixel-modules-L0inner@cern.ch
• Electrical testing: atlas-itk-pixel-modules-TestSystem@cern.ch

Mattermost (most active channels on ITkPix)

• Electrical Testing
• Local Database User Support
• Module Stat Data Analysis
• Module Assembly
• Quad Module
• Triplet Module

Meetings

Can be found on indico

Weekly schedule (Cern times):

	Mon	Tue	Wed	Thu	Fri
14h		Quad Assembly
15h		Quad Assembly			Data Reporting*
16h		Module Production Coordination / Electrical Production Coordination	3D Modules (bi-weekly)	Module Production & Electrical Performance WGs
17h		Module Production Coordination / Electrical Production Coordination	3D Modules (bi-weekly)	Module Production & Electrical Performance WGs	Quad Flex / Data Reporting*

• alternates

Spreadsheets for tracking module production

Tracking components:

• Module inventory
• Flex tracker
• Hybridization tracker
• Module Accessories
• Shipping dashboard

Pre-production for loading:

• Modules reception spreadsheet
• Module quality report [tmp]

Production planning (in progress):

• Production Management Tool

Module Assembly & QC Procedures

Outdated but still useful spreadsheet outlining Module EDMS documents, including drawings and procedures

Module assembly documentation actively maintained here: https://atlas-itk-pixel-quad-assembly.docs.cern.ch/

An overview of the module QC procedures:

• Electrical specification and QC procedures

• Maintained on gitlab, accurate description of procedures

• Description of cuts has not been updated to v2

• Values of cuts are correct in QC code

• Also summarized in this Spreadsheet

Software tools for Module QC

Access module QC tools from module repository: https://gitlab.cern.ch/atlas-itk/pixel/module

• Module QC Nonelec Tools a GUI application for submitting non-electrical QC tests
• Module QC Database Tools registers modules in PDB and generates YARR configs from PDB using itkdb API
• Module QC Measurement Tools python tool for running module QC tests and recording raw values
• Module QC Analysis Tools interprets module QC test results, performs calibrations, and applies cuts
• Local Database intermediate aggregation of module QC data for a site/cluster

What to do when things go wrong

Electrical QC Troubleshooting FAQ

Flag rulebook

Unhappy/Graveyard Modules:

• Spreadsheet
• Indico sandbox

Modules with core columns:

• Abnormal CC modules

Data reporting

Software tools:

• Module database reports - ‘backend’ downloads information from PDB and flattens it into pandas dataframe
• Module QC statistical tools - ‘frontend’ performs statistical analysis of module QC data from the PDB, and produces data reporting websites

Pages:

• Module Dashboard - inventory & throughput
• Module Reports [temp] - module performance

These pages are under active development - feedback is welcome (via data reporting meetings or gitlab)

Interface with loading

Not well documented (as far as we know):

• Shipping procedures?

  • We’ve assumed that this is specific to each loading site & cluster

• Return of module accessories to module clusters

  • Carriers
  • Pigtails
  • Peli cases etc