Tested Geometries




A

Standard Geometry

Signal: 450 Events (Scaled to 2x 10^7 input positrons)
Background: 8000 Events (Scaled to 4 x 10^9 input photons


B


Configuration ith lead shielding
130 mm option (as in standard configuration):

Signal: 450 Events
Background: 640 Events

220 mm option:

Signal: no result but < 450 Events
Background: 320 Events


C

Shielding 'inside' cahmber
No results so far: