Allena Opper: Please prepare an outline of what is needed to calibrate your detector and how much time that will need.


Off-Line calibration at Louisiana Tech:

Adding outside fiducial markers on the GEM frames

->  measure/relate readout structure of readout foil to fiducial markers
 
-> Check position accurarcy of the Region I rotator
     How precise is the worm gear an the klicker ?!
       => Systematic error in rotation angle
      How precise are the end switches for radial placement of the GEMS
        => Systematic error in the radial end position

==> Program for the next weeks. Currently we have two students available for this task




                                                                                                                   



Online-Calibration: (w/o global tracking)

- Efficiency of the GEM
   Comparing (radial) counting rates versus theory. Allows to define/verify the "dead zone" close to frame
- Detection of the collimator edges possible ?!
    Probably the image of the collimator will be smeared out by showers produced  at the edges and/or at the inside walls of the collimator
- Using Mike Finn's wire target and Region II
     Connection between wire target, GEM, and Region II must be a straight line



That's all folks,
    |{laus