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Any multi channel analyser which can accept negative fast pulse

Discussion in 'Electronic Basics' started by [email protected], Feb 22, 2006.

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  1. Guest

    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
     
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