Christopher Richards edited Conclusion and Discussion.tex  almost 9 years ago

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Voltage: Defined by kinetic energy of electrons accelerating through PMT. Hence   The resolution of the detector was governed by two controllable variables: the PMT voltage and the amplifier gain. Increasing either of these shifted the end point of the spectra towards higher channel numbers, resulting in each channel measuring a smaller window of energy. Gain resulted in an linear shift in the 31keV peak position and exponential resolution response. This linear trend is due to the amplifier scaling the detector's response linearly, whilst the exponential increase of resolution is caused by the decrease of FWHM given for a number of channels over a spectral feature. The voltage exhibited an exponential shift in peak position and a linear response to resolution. Given the PMT uses dynodes to accelerate photoelectrons towards a detecting cathode, increasing the accerlating potential increases the electrons velocity by \[v^2] \v^2  Explain spectra of each isotope and features. Table of energies used