Title: Output signal enhancement for microspectrofluorescence systems
Application Number: 85101644 Application Date: 1985.04.01
Publication Number: 1007726 Publication Date: 1987.01.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01J40/14,H01J43/30
Applicant(s) Name: Conoco Inc. (US) P.O. Box 1267 Ponoa City, Ok 7460 Address:
Inventor(s) Name: Roger A. Wood, Roy Coleman
Attorney & Agent: YANG KAI
Abstract:
     A detection circuit for enhancing an output signal having poor signal-to noise ratio is characteristic for a photomultiplier driven near the upper limits of performance in a microspectrofluorescence analysis system. The circuit consists of a selected low inherent noise photomultiplier tupe providing output through a multi-pole active filter to a high gain operational amplifier, said active filter being tuned to a low corner frequency with maximum roll-off adjustment.
Time: 10
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