Preamplifier for fast point-scanning

Posted by Peter Rupprecht on
URL: http://confocal-microscopy-list.275.s1.nabble.com/Preamplifier-for-fast-point-scanning-tp7583344.html

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Dear list,

I'm looking for preamplifiers for use in a resonant scanning 2P microscope, using fluorophors like GCaMP or OGB in vivo. Acquisition will be time-locked to the 80 MHz laser pulses, so the bandwidth of the PMT preamplifier should be at least 80 MHz in order not to smooth adjacent pixels too much.

Right now, I'm using this model, which seems to be used by many others in the field (as far as I can see):

http://www.femto.de/en/products/current-amplifiers/variable-gain-up-to-200-mhz-dhpca.html

Is there another option which might be better than this standard solution for some applications? I'd be glad to hear some opinions on that.

Best regards,
Peter