Do you have a typically wiring diagram for detecting positive and negative ions in a ToF? What external resistors and capacitors are recommended?
Typical wiring is described in the brochure. When MCP input is at a ground potential, typical wiring diagram is the same for detection positive or negative ions in ToF systems. External resistors and capacitors should match input parameters of preamplifier. Most commonly used are 50 Ohm and 1000 pF (rated up to 3kV). Q: You don’t have an electrode between the MCPs, which means that you do not ensure that you have the same potential drop over both MCPs. Is the resistance of the MCP plates so well defined that this is not a problem? A: You are right, there is no separate electrode between MCPs in our standard assemblies. We use matched MCPs. Matched means that they have same resistance within 10% (we choose usually even less difference). We also make sure that the nominal operation voltage of two MCPs is about the same. Q: We were thinking to remove the 3 fins that are supposed to be used for biasing the MCP and substitute them with some connectors we made. In order to attach these new c
