[Tpe] scalers

Larry Weinstein weinstei at jlab.org
Thu Oct 28 10:17:10 EDT 2010


Dear Puneet,

I am cc-ing this to the TPE list so everyone can contribute.

We need the following values read out in epics and on a GUI:

1. frascati dipole current, shunt current and fields (four values)
2. pair spectrometer current and field (already in epics_monitor)
3. minitorus current (already in epics_monitor)
4. TPE calorimeter scalers 30 + 1 (trigger scaler)
5. Sparse Fiber Monitor (beam profiler at downstream collimater) 16+16
6. Dense Fiber Monitor (beam profiler at TpeCal) 64+64
7. PMT current drawn for quartz crystal beam monitors 2

Item 6 might have too many channels to be read in.  We will need to see 
it on a GUI.

We do not need:
epics_gamma_monitor channels 11-19
epics_scalers_monitors scalers 5-6 (I have no idea what scalers 1-4 are 
either)
epics_monitor

    * goni stuff
    * cohbrems stuff
    * pair spec logic
    * Frost stuff
    * helicity stuff

I have no idea what the stuff is that was added in 2006-2007 'on Pawel's 
request'


Puneet Khetarpal wrote:
> Hi Larry and brian,
>
> Please see the attached list of the scalers that are currently going
> to the datastream. So, the only stuff I see missing are:
>
> 1. Frascati Dipole currents/magnetic fields including shunt and pair
> spectrometer
> 2. TPE calorimeter scalers 5x6
> 3. New beam profiler scalers 64x64
> 4. Polarity scalers?
>
> Am I missing something? Please let me know.
>
> Thanks,
> Puneet
>
> "No word is true until it is eaten" - 36 Lessons of Vivec, Sermon 27
>    

-- 
				Sincerely,
				Larry

-----------------------------------------------------------
Lawrence Weinstein
University Professor
Physics Department
Old Dominion University
Norfolk, VA 23529
757 683 5803
757 683 3038 (fax)
weinstein at odu.edu
http://www.lions.odu.edu/~lweinste/

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