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The test pulse circuit

At the rising edge of a signal applied to the FcsTp pad, a charge equivalent to
change_begin

change_end
with $+1 MIP_{\rm Si}$ 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$_{\rm Si}$ is injected into channels 1, 5, 9, 13 ...for an even number of test pulses).



Martin Feuerstack
2/3/1999