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AMS-02 Silicon Tracker Wiki

The 9 layers of double-sided microstrip detector of the AMS-02 Silicon Tracker, placed inside and outside the AMS-02 magnet bore, provide the traversing charged particle position with an high accuracy (of about 10 microns). From the coordinate measurements the particle momentum and charge sign can be reconstructed up to high energies (maximum detectable rigidity is approximately 2 TV/c). In this TWiki you will find a description of the system and all the necessary steps needed to operate and check the system correctly.


The Tracker Shifter How-To

  1. Few information about what is the Si Tracker
  2. Tracker Shifter Checklist
  3. Re-starting tracker daemons
  4. Tracker troubleshooting
  5. Contacts in the case of problems




Tracker Full User Guide

a. How to operate the AMS Tracker

  1. General infos
    1. A Short Description of the Tracker
    2. The Tracker Acquisition System
    3. Tracker Software on POCC
  2. Procedures to Power ON/OFF the Traker
  3. Operating the System
    1. How to Send Commands from JMDC
    2. How to send AMSWire Commands trough JMDC (JMDC Envelope)
    3. Current DSP Code and Configuration
    4. TDR DSP Codes
    5. JINFT DSP Codes
    6. Gospel of Kounine about AMSWire communication protocol
  4. Tracker Standalone Special Procedures
    1. Calibration Permanent Flags
    2. Double-Trigger Calibration
    3. Occupancy Masking
  5. Monitoring the Tracker
    1. Temperatures Monitor
    2. Data Quality Monitor
    3. Tracker Electronics Monitor (SlowGui)
  6. Into Details
    1. Ladder Naming Convention
    2. Power On Commands Sequence
    3. (Re-)Configuration Commands Sequence
    4. Slow Control Commands Sequence

b. How to operate the Tracker Cooling System (TTCS)

  1. Procedures to power ON/OFF the TTCS
  2. How to Monitor Tracker/TTCS Temperatures
    1. AMS Monitoring Interface (AMI) -> at CERN or the local one
    2. Backup Solutions
  3. Performance results in different conditions
  4. Procedures to run with AMS in horizontal position

c. How to operate the Laser System (TAS)

  1. TAS Calibration Procedure
  2. Detailed Infos about TAS Ladders

d. Tracker Logbooks

  1. Oct '09: Tracker Cabling (SCM Configuration)
  2. Dec '09: Cosmics (SCM Configuration)
  3. Feb '10: Test Beam (SCM Configuration)
  4. Apr '10: Thermo-Vacuum Test (SCM Configuration)
  5. Jul '10: Tracker Cabling (PM Configuration)
  6. Jul '10: Cosmics (PM Configuration)
  7. Aug '10: Test Beam (PM Configuration)
  8. Aug '10: Cosmics at KSC (PM Configuration)


TrackerHome in Florida

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Topic revision: r59 - 2010-10-01 - AlbertoOliva
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