MCPD18 R104
Figure 2: Schematic sketch on voltage ramping during “Start-Up” procedure.
The detector starting operation voltage for “MCP-B” is given in the specification sheet.
Example:
The “MPC-B” voltage is given in respect to the “MCP-F” voltage. A ramp time of 4min. should be used
to change the “MPC-B” voltage from 0V to a target voltage of exe1600V.
4.1.2
Dark Count Rate Measurement
Check the detector output by means of any electronics and software or with an oscilloscope where
the input is terminated with 50Ohms.
The dark count rate without any source should be as given in the specification sheet.
4.1.3
Standard Detector Measurement
After finishing the dark count rate measurement with a satisfying result, you may now start carefully
with an electron or light source observing the detector output.
Turn off the high voltage before performing any changes of the cabling.
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