The two detector halves, "A"
(Q13: quadrants 1 and 3)
(Q02: quadrants 0 and 2),
are treated as independent partitions.
The concept of
than a simple hierarchical structure in the
OT FSM, since it implies that the two detector halves can be
actually run like two independent sub-detectors.
The top panel for the control of the OT "A" partition is shown in the
figure below. An analogous one is used for the
control of the "C" partition.