PHOBOS in PHOTOS

Octagon Detector

Ring Counter

Silicon pad sizes

Octagon Detector: 2.7 x 8.8 mm2

Vertex Detector: 0.5 x (12-24) mm2

Ring Counter: (5x5) - (10x10) mm2

Spectrometer: (1x1) - (0.5x19) mm2

~ 25 cm

Spectrometer

Vertex Detector