FST Wheel

Numbers and Coordinates for the BST/FST Upgrade

View on the FST wheel (from 'backward' direction!):

in front (that is on the vertex face of the wheel) s-modules which measure the u coordinate,

in the middle (that is on the forward face of the wheel) t-modules which measure the v coordinate.

In front of wheel 1 and behind wheel 3 additional single-sided wheels are located which carry modules measuring the r-coordinate (either s- or t-type).
(According to former definition the s-modules have been called phi-modules.)
Note that sector counting starts at phi=0 to the left.

You can navigate down to detailed views of the hybrids by clicking the respective text.