Photon Counting Experiments
Photon Counting Experiment (7 pages): Report
stat2.pdf "Errors and Statistics"
(52 pages, by James Graham)
Probablility Distribution & Error" (42 pages, PowerPoint by James
Other Useful Information:
"What is a Lab Report?" (4 pages, by James Graham)
and Tell" (1 page, by Holly Maness)
"Quick Tour of Linux and IDL" (10 pages, by Holly Maness - adapted from
UNIX and IDL handouts by Carl Heiles)
Examples of finished student lab
Data can be aquired through IDL with the function savephotons
result=savephotons(nsamples=200, dt=1 ,filename='data.txt')
result=0 (if no data was saved)
result=1 (if data was saved)
"savephotons" will request data from the Linux-computer called rphot.
The data file will be a text file with a single column of
integers. The number
of integers will equal nsamples. Each integer represents the
total photons counted during a period of dt.
0 < nsamp < 5e5
dt > 0.2 ms (dt must be chose so that dt/0.1ms
is an integer equal to or larger than
0 <= counts < 65535
ISSUE (error making connection):
If result=savephotons=0 and there is a message "error making
rphot doesn't have it's server running.
To start the server on rphot, follow the instructions in the lab
UC Berkeley Astronomy