Editing PMT and Electronics Setup (section)

==Discriminator Setup==
[[File:CFDDiagram.png|center|frame|Figure 4]]
*Leading Edge vs Constant Fraction Discriminators
A Constant Fraction Discriminator (CFD) ensures accurate timing even in the presence of pulse fluctuations and system noise. The leading edge of a pulse, when used for logic pulse generation, can introduce delays. The Constant Fraction Discriminator addresses this issue by dividing the incoming pulse into two parts: 2/3 and 1/3. The lower portion is inverted, and the higher portion is delayed. These two parts are then recombined, with the zero-crossing point now occurring at the recombination point of the two signals. This method minimizes delays by making the zero-crossing point independent of the signal amplitude.
In this experiment, a Constant Fraction Discriminator is used, and the delay is determined by the cables employed. Specifically, the white cables used in this setup introduce a delay of 8 nanoseconds.

# Connect the current from the current tube to Channel 1 on the oscilloscope.
# Use the appropriate cable to connect the current from the tube to the discriminator. For this experiment, a white cable with a delay of 8 nanoseconds is used.
# Run a cable from the output of the discriminator to Channel 2 on the oscilloscope.
# This setup should display both a waveform and a logic pulse on the oscilloscope screen.
# Repeat the process for the remaining tubes to ensure they are all functioning correctly.
[[File:ZeroPointCrossingFromMonitor.png|center|frame|Figure 5]]