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Testing the accuracy of the reconstruction.

Updated on Wed, 2010-08-04 11:10. Originally created by aic110 on 2010-08-04 10:15.

I ran a program that simulates a fixed photon hitting the detector and a mobile photon that scans the entire detector.  The position and energy of the photons are generated and the energy distribution is produced using shower shape function and the two photons are reconstructed together.  The photons both have energy equal to 25.  The program begins with the fixed photon in center of the center cell and the mobile photon scans the detector in 0.006 cell increments in both the horizontal and vertical directions.  When the mobile photon is finished scanning the fixed photon is moved off-center (to the bottom or to the left for example but not to a corner) and the mobile photon scans again.  Then the fixed photon is moved to the corner and the mobile photon scans one more time.  The following figures were produced from the program.

Figure 1: Percent difference [(reconstructed displacement - generated displacement)/(generated displacement) * 100] versus generated displacement.

 

 

 

Figure 2: Percent difference [(reconstructed displacement - generated displacement)/(generated displacement) * 100] versus generated displacement for 1 cluster events.

 

 

 

Figure 3: Percent difference [(reconstructed displacement - generated displacement)/(generated displacement) * 100] versus generated displacement for 2 cluster events.

 

 

 

Figure 4:  Percent difference [(reconstructed displacement - generated displacement)/(generated displacement) * 100] versus generated displacement for 1 cluster events and only for when the fixed photon is in the center of a cell.

 

 

Figure 5: Percent difference [(reconstructed displacement - generated displacement)/(generated displacement) * 100] versus generated displacement for 1 cluster events and only for when the fixed photon is off center in a cell.  When the fixed photon is horizontally off center it looks the same.

 

 

 

Figure 6: Percent difference [(reconstructed displacement - generated displacement)/(generated displacement) * 100] versus generated displacement for 1 cluster events and only for when the fixed photon is in the corner of a cell.

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