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Delayline Detector DLD6060-8S Manual
Delayline Detector DLD6060-8S Manual | Surface Concept GmbH
High voltage sparks may seriously damage the detector anode/ meander or the MCPs.
Observe the chamber pressure carefully every time the high voltage is turned on. Switch
off the high voltage immediately in case of a temporary pressure rise by an order of
magnitude or more. This indicates high voltage sparking.
Wait some time (up to 5 min.). Start the “Start-Up” procedure again with an increased ramp
time. Turn off the high voltage completely, stop the procedure and call your provider for
further assistance, if is it not possible to reach the operation voltage without sparking.
Figure 5: Schematic sketch on voltage ramping during “Start-Up” procedure. See the SPECS Analyzer manual for ramping of the Herzog Potential.
Note
The detector starting operation voltage for “CH-HV” is given in the specification sheet.
The voltage for “U_DLD” is fixed to “CH-HV” + 400V, when using the Surface Concept
HV Power Supply. It cannot be changed by the user and is therefore always increasing/
decreasing together with the voltage for “CH-HV” . This might not be the case for different
used HV supplies.
The voltage for “CH-HV” is always given in reference to the MCP front voltage “CH-B
(which corresponds to the external reference voltage of the Surface Concept HV Power
Supply). Depending on the detector setup the voltage difference between “U_DLD” and
“CH-HV” can be different than 400V.
