a diagnostic tool for the zeus microvertex detector hardware · 2004. 9. 21. · a diagnostic tool...
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A Diagnostic Tool for the ZEUS Microvertex Detector Hardware
byAndreas Jantsch
TU Dresden
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06/09/2004 Summer Student Session 2004 2
Contents
1. The ZEUS Microvertex Detector2. The ZEUS MVD Hardware3. The Diagnostic Tool
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06/09/2004 Summer Student Session 2004 3
1. The ZEUS Microvertex Detector
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06/09/2004 Summer Student Session 2004 4
The Microvertex Detector
• installed during the shutdown periode 2000/01• high precision track measurements of
electron – proton interactions• track resolution of ~10µm
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06/09/2004 Summer Student Session 2004 5
Modules
• silicon strip sensors• surface: 36cm²
thickness: 300µm• 512 strips / halfmodule• 2 halfmodules / module• 8 analog readout chips
(Helix 3) / module
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06/09/2004 Summer Student Session 2004 6
2. The MVD hardware
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06/09/2004 Summer Student Session 2004 7
The Patchoxes
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06/09/2004 Summer Student Session 2004 8
The MVD hardware
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06/09/2004 Summer Student Session 2004 9
The MVD Platform
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06/09/2004 Summer Student Session 2004 10
MVD Platform Boards
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06/09/2004 Summer Student Session 2004 11
Why do we need a diagnostic tool?
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06/09/2004 Summer Student Session 2004 12
3. The Diagnostic Tool
DATABASE:• contains boards, cards, cable labels, …
and relations betweenQUERY SCRIPT:• information from database
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06/09/2004 Summer Student Session 2004 13
My Steps
• understand the detector• understand the MVD hardware• learn MySQL and PERL• create the database using an SQL script• write a PERL script to query the database• type in the data from paper documentation
by hand
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06/09/2004 Summer Student Session 2004 14
The Database
• create database usingan SQL script
• create all tables• load data into tables
using ascii text files• 1 table / board type• 17 tables
HV_PATCHBOX CARD
D-2-82D411
D-2-72D410
D-2-62D409
::::
A-8-28A1
A-8-18A0
cableslotcrateid
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06/09/2004 Summer Student Session 2004 15
The Query Script
• PERL / DBI• 3 options:1. all boards connected to one halfmodule2. all halfmodules connected to a specific
board3. all halfmodules connected to a helix
driver cable
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06/09/2004 Summer Student Session 2004 16
ExampleWhich halfmodules are affected,
if you exchange one helix driver board?
• input: name: helix_drivercrate: R-2-1-4slot: 11
• output: ids: 80…89, 200…219
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06/09/2004 Summer Student Session 2004 17
Results
• solve hardware problems more quickly• all information in one database for the first
time• easy to enlarge database and query script
(e.g. spares, fanouts, …)
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06/09/2004 Summer Student Session 2004 18
Future Prospects
• link to MVDDAQ homepage by Alessandro Polini
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06/09/2004 Summer Student Session 2004 19
Thanks!
• Tobias Haas• Chris Youngman• Alessandro Polini• Krzysztof Wrona• Radek Kaczorowski• Ingo Martens