Photographs of Front of Detector Image close-up Image in dark Front of detector The image is green with white flickers of background light in its “normal state”. When a particle goes through the detector, a “streak” of white light will be seen across the green background. The next 2 slides show pictures taken from video of the detector. In the first, the detector is sitting on a table in a lab. In the second, the detector is in a test beam.

Primary and Secondary Interactions

8 GeV/c Pion Interaction