AMS Geneva Memo

Procedure for ladder test when they arrive in Geneva

We will receive in Geneva all the ladders from the different production lines to be mounted on the planes. Tests must have been done in the different production lines and appropriate documentations will come at the same time asthe ladder itself.

This is the list of the actions that we will perform with the ladders, prior to their mounting on planes.

1. The documentation will be read.
2. The ladder will be visually inspected.
3. The ladder will be put in the appropriate jig for electrical test if this not already the case.
4. Connect the ladder to the Geneva PC test system using special cables and the special dark box.
5. Switch on the Geneva PC test power supply and test that ladder stands bias using a voltmeter.
6. Use SCOPE program to look for pathology and read the temperature sensor name and temperature.
7. Use CALIB program to create calibration file.
8. Use PAW to look at the calibration file (showcal printcal)
9. Save the calibration file in local Geneva database (ftp schp5 login ams anonymous passwrd any cd pub, ams, geneva mput filename.*)
10. Print the calibration plots and include them in the standard documentation package.
11. Use SCOPE program to look if the pedestal subtraction make sense.
12. Use HISTO with 200 events (histo printhis)
13. Uses CLUSTER program with 1000 random triggers and save the file.
14. Put the Geneva Sr source on the ladder.
15. Uses CLUSTER program with 1000 random triggers and save the file.
16. Use paw to plot the signal from the source.
17. Print source signal and put the plots in the standard documentation package.
18. A physicist will look at all plots and declare if the ladder is suitable to be put on a plane.
19. Remeasure the current as they can vary widely with time