Detected photon multiplicity for different X coordinate of the beam
- CERN 17
- S333, bar with 3-layer spherical lens
- shaded area shows default bar's location
Loose trigger selection (T1>0 && TOF1>0 && TOF2>0):
![](/~rdzhigad/data/prt/a17/scan_x/nph_lose.png)
Fine trigger selection (T1>0 && TOF1>0 && TOF2>0 && T2>0 && T3v>0 && T3h>0 && hodo>=1350 && hodo<=1351 && hodo>=1369 && hodo<=1370) :
![](/~rdzhigad/data/prt/a17/scan_x/nph_fine.png)
Normalized by total number of triggers. Loose selection:
![](/~rdzhigad/data/prt/a17/scan_x/ratio_lose.png)
Normalized by total number of triggers. Fine selection:
![](/~rdzhigad/data/prt/a17/scan_x/ratio_fine.png)
Normalized by total number of triggers. All triggers + 1 horizontal fiber of the hodoscope:
![](/~rdzhigad/data/prt/a17/scan_x/ratio_fine_1_fiber.png)