Mike,
It is my understanding that running the PMT's you spoke of below 300VDC
will not be detrimental to their respective life expectancy. At 300VDC will
the signal to noise ratio be high enough for signal detection? Both of these
PMT's do have a maximum anode to cathode voltage rating of 1250VDC. Would it
be more efficient operate the PMT in its normal operating range while
attenuating the photons prior to them reaching the PMT?
Regards,
Ray Lannigan
Tritech Field Engineering
2014 Renard Ct. Suite I
Annapolis, MD 21401
800-886-7004
www.tritechinc.com
-----Original Message-----
From: Mike Evans <mevans@xyinc.com>
To: cyto-inbox
Date: Wednesday, March 08, 2000 3:25 PM
Subject: PMT R1477 at low voltages
>
>Flow Guru's,
>
>
>Is anyone running the Hammamatsu R 928 or R1477 pmt at voltages below 300V.
> I know the MoFlo has a minimum of 400V so that leaves out the MoFlo
>users. I am trying to find out if the PMT works well for a long period of
>time below 300. Is it detrimental to the pmt over time? We are not
>concerned of linearity and just want to know if we can damage the pmt over
>time if running it below the manufactures specification.
>
>Thanks in advance!
>
>Mike Evans
>Manager: Cytometry Sperm Sorting Facility
>XY Inc.
>3801 West Rampart Rd. CSU Foothills Research Campus
>ARBL Building
>Fort Collins, CO 80523
>Mevans@xyinc.com
>970-491-8525
>
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