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Madeline Horn deleted figures/Shot Noise/caption.tex
over 8 years ago
Commit id: 30beb5891a4a9e7500d8485c09265717f6de4efd
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\label{fig:ShotSchem}
Electronics diagram for measuring Shot Noise, adapted from TEACHSPIN MANUAL
"Wiring diagram for the lamp and photo-diode combination, and the voltage-follower topology of the input stage of the pre-amp."
\textbf{Are you SURE you used THIS CIRCUIT, and NOT the transimpedance amplifier in Figures 3.3a and Figures 3.3b (See pages 3 - 11 through 3-12. PLEASE CHECK YOUR NOTES. } (I'm asuuming that by now you have learned to make an entry in your notebook regarding the circuit you used, so that you and your readers can verify what you did). The transimpedance amplifier arrangement is superior to the voltage-follower arrangement, for the reasons discussed on page 3-10 . Which one you used makes a difference in terms of systematic error at low currents. For example, if for some reason you did set up the measurement using a voltage-follower, you might get similar results for measurements at high currents in the presence of light but not for the residual noise in the absence of light .
