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Hello Ohkyung,
The HV is the current supplied to the PMT.
The Gain is the amplification of the signal from the PMT.
hope this helps.
best
James Beals
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734.936-2051

205 Zina Pitcher Place
2038 MBNI
Molecular and Behavioral Neuroscience Institute
University of Michigan
Ann Arbor, Mi
48109





On Sep 3, 2008, at 11:28 AM, Ohkyung Kwon wrote:

> Search the CONFOCAL archive at
> http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
> Hello listers,
>
> I am wondering the difference between HV and gain in the  
> operational software of FV1000. Please educate me. Thanks very much  
> in advance.
>
> Ohkyung