The BST pad detectors are wedge-shaped cut-outs
of a disc surrounding the beam pipe. The active area is 8-fold subdivided
at radii following a geometric series.
The innermost value is determined by the radius of the beam pipe while the
outermost one leaves room for a small electronics printed circuit board,
so called hybrid,
inside the BST support tube.
|
|
© by Hans Henschel, 11-sep-96, last revised: 09-sep-98