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At the rising edge of a signal applied to the FcsTp pad, a
charge equivalent to
- 2 MIP is injected into the inputs of the channels
1, 5, 9, 13 ...,
- 1 MIP into channels 2, 6, 10, 14 ...,
- 1 MIP into channels 3, 7, 11, 15 ...and
- 2 MIP into channels 4, 8, 12, 16 ....
with being equivalent to a charge of 24.000
electrons.
Thus, with an appropriate trigger
a stairway-like readout figure is generated .
The polarity of the injected charge toggles after each application
(i.e. -1 MIP is injected into channels 1, 5, 9, 13 ...for
an even number of test pulses).
Martin Feuerstack
2/3/1999