Zeiss LSM 510 Manual de usuario Pagina 13

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You need to set the detector range to match the dimmest and brightest signal
from the specimen. Setting the detector incorrectly results in the loss of
information from the specimen.
3. Set Ampl. Offsetsetting the ‘min’ signal
This should be set next, but may need re-setting later. While acquiring with the Fast
scan button, adjust the Amp. Offset so that only a few of the pixels in the background
of the image are blue. If you have a lot of blue colour in the background, move the slider
to the right.
4. Set Detector Gain and Excitation
power setting the ‘max’ signal
The ‘max’ signal is set by adjusting the
detector gain and laser
transmission simultaneously. You
need to empirically work out the best
laser power settings – low laser power
causes less bleaching but requires the
detector gain to be set high; which
introduces noise.
Whist acquiring with the Fast scan button, adjust increase the Detector Gain so that
you get a bright image, but not too many red (saturated) pixels and not too much noise.
You may need to adjust the Ampl. Offset if you increase the Detector Gain a lot.
Around 600 is a good start. This should be set in conjunction with the excitation
intensity.
5. Set Ampl. Gain
Leave as 1 unless you have a very dim signal and nothing else works. This will amplify
noise as well as signal.
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