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Sensor Numbering and Inventory Management for Belle II SVD - Thomas Bergauer Presentation

In this presentation, Thomas Bergauer from HEPHY Vienna discusses the sensor numbering and inventory management for the Belle II Silicon Vertex Detector (SVD). Key topics include the reception of different sensor batches, their numbering scheme, and the necessity of establishing a comprehensive database to track individual sensors. Insights are provided on measuring results, shipment transfers between institutions, and recommendations for maintaining an organized inventory system. This initiative aims to enhance efficiency in handling sensor data and facilitate research and development processes.

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Sensor Numbering and Inventory Management for Belle II SVD - Thomas Bergauer Presentation

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Presentation Transcript

  1. DSSD Sensor Numbering and Inventory Thomas Bergauer (HEPHY Vienna) SVD meeting

  2. HPK Batches received • First try • Batch no. 10938-9239, sensor no. < 20 • Second (by KEK/HPK called “third”?): • Batch no 10938-9239 • sensor no. 46-48 • Next batch (10938-0404) sensor no 52,53 • currently last (called “third” from now on) • Conventionally diced (diamond blade) • Fourth batch (no 10938-0306) sensor no 80-81 • Similar to third batch but • Diced using HPKs “stealth dicing” technology (laser) • Recommendation: Set-up database and store information about every single sensor • Reception at KEK/Vienna from company • Transports (track actual position of every sensor) • Measurements, results, qualification Slide from Nov B2GM Thomas Bergauer (HEPHY Vienna)

  3. HPK Schedule and Deliveries • Scheduled 2011: 3 times 32 pcs. (96pcs) Table from Nov B2GM • Delivered 2011: 12+16+6= 34 pcs, 1/3 of schedule Thomas Bergauer (HEPHY Vienna)

  4. Mail from Toru (24. November) Dear Thomas, It took some time to recall the numbers of sensors I ordered to HPK, but I could find. 2011:   74  2012:   40 ------------- Total 114 ----- KEK did multi-fiscal-year contract with HPK for the first time. We have already received (12+16+6-1) sensors we have 147 sensors in total. (The 2010 batch are for R&D and do not have be installed to Belle2.) We already have used several sensors for R&D. Some questions/comments by myself: • Does this mean the the sensors delivered so far do not count to the official order? • Several modules built by us not been counted there! • How many spares do we need? Assuming 30%, we need to aim 170 pcs! Discrepancy to table shown at B2GM! Thomas Bergauer (HEPHY Vienna)

  5. Belle II SVD Layout Markus Friedl

  6. Database needed Needs to contain: • Registration: scan barcode and enter basic sensor information • Inventory handling: which sensors are in which institute • Transfers: shipments from one center to another • Measurement results • Own measurements • HPK measurements • Good/bad/broken handling • Later: modules, ladders, assembly CMS used local Java program interfacing to central Oracle DB Belle-II: Web interface with mySQL Thomas Bergauer (HEPHY Vienna)

  7. Web Interface • Login: Username/password to identify user (=institute) • Inventory: shows list of all objects (now only sensors) • Click on sensor shows all information for it (i.e. all measurements and history) • Shipments: transfer to inventory of other institute • Assembly: build modules, ladders, layers (later) • Question: how to upload measurement results? • Via web-interface? • Directly via SQL from probestation (Labview) Thomas Bergauer (HEPHY Vienna)

  8. Object Numbering • Each object needs to have an unique ID number to distinguish • CMS: Barcodes with 14 digits on all objects (sensor: envelopes) • HPK printed it already onto their envelopes • Now: HPK is also willing to do, but we need to define numbering scheme • HPK will use code128 • Improvement to code39 used in CMS Thomas Bergauer (HEPHY Vienna)

  9. Numbering Scheme • E.g. Sensor 2 02 01 2 0404 52 (12 digits) • Meaning of digits: • 2…….....Belle-II • 02…..….SVD (01…PXD,…) • 01………Sensor (02…Hybrid, 03…Ladder,…) • 2…….....HPK (1…Micron) • 0404.…..HPK Batch No. • 52………Sensor within batch • Written without blanks: 202012040438 • Micron also used 4 digit batch and 2 digit sensor-within-batch Thomas Bergauer (HEPHY Vienna)

  10. That’s it. ;-) Thomas Bergauer (HEPHY Vienna)

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