High Efficiency Gaseous Tracking Detector for Cosmic Muon Radiography

Figure 10

Gain map (mean amplitude) of the top detector layer (1) in the horizontal configuration, under various test conditions. (a) is the reference and (b) shows the map for 1.5 mbar overpressure, (c) with two test weights placed directly on the detector (indicated by the arrows).

(a)

(b)

(c)