====== Grading Scheme ======

To receive full credit students need to do the following (or equivalent) for each Task or Experiment.

===== Task 1 =====

Produce a histogram of # of counts in a fixed time interval, fit it to a gaussian and use the reduced ChiSq to show that the data are consistent with random events.

Counts can be collected one measurement at a time using the scalers and timer, or by using the USX30 in MCS mode.

This needs to be done for the cases of laser off and laser on.

Could this also be done by using the MCS data to compute an average and standard deviation and showing the std matches SQRT(N)?

===== Task 2 =====
 
A single SPCM pulse can be T'd and the stop pulse run through a series of delays to determine the coincidence time window.

Testing the accidental rates for operating conditions could be done by measuring the singles rates with the laser on, turning laser off and turning the incandescent lights to approximately match those rates.  Then measure the number of observed coincidences and compare with calculation.  May have to account for dead time?  Or the start pulse can be delayed while the stop is prompt, have to consider minimum delay time?.

Uncorrelated measurement can be done with room lights.  Measure singles, coincidences and compare with calculation.

===== Task 3 =====

==== Linear Polarizers ====

Show with either numbers for measurement of each of the 3 cases, or with a plot of intensity over time fitted to the correct functional form.

==== 1/2 Waveplates ====

Numbers showing the results for each case.

==== Polarization Beamsplitters ====

Setup and use linear polarizer in front of each detector output to confirm polarization.

===== Experiment 1 =====

Students collect coincidence data from B, G, & W detectors and establish statistical significance.

===== Experiment 2 =====

Students perform measurements and do calculations to show statistical likelihood of more than one photon at a time being inside the interferometer.

Collect data to show interference effects which are consistent with 810nm photons of light.