Dears,
I am getting a fast pulse (4ns,-1.6V) output from a photomultiplier, it is a typical negative pulse from a photomultiplier. Anybody know how to convert it without any shape changing ? just convert it to positive on with same shape and same width ? I want to feed it into a multi-channel analyser to measure the pulse height spectrum. Or is there any MCA that can accecpet negative pulse input directly?
Thanks