[esa-t474] beam DQ

[Woods, Michael B.]

Hi Bino, Most recent version I have posted for mccsetup.txt is from May 4, 2007 at http://www-project.slac.stanford.edu/ilc/testfac/ESA/files/DAQ/mccSetup.txt , which does include the addition of a few items since the march run including phas dr12 63 vact; also outside temperature and barometric pressure.  So should be there for the july data.  Indeed, looks like we don't have engye-; I'm not sure how to interpret the egain1e- values.  Will put on list to add for the next run.  
I think we also added for the july run the mcc adc data for the 90ghz diode to monitor bunch length, but need to check with Zen.  mike 

-----Original Message-----
From: Bino Maiheu [mailto:bino at hep.ucl.ac.uk] 
Sent: Thursday, August 30, 2007 2:12 AM
To: Woods, Michael B.
Cc: ESA T474 Mailing list
Subject: RE: [esa-t474] beam DQ

Hi Mike,

> - the Linac phases affect the longitudinal phase space, particularly 
> the energy spread and the bunch length.  The relevant phase is PHAS 
> DR12 63 VACT

THanks, unfortunately PHAS DR12 63 VACT doesn't appear in the data logged to disk :(.

> - for S29 feedback, yes units are um and urad
> - fb31 EGAIN1E- is an actuator variable that talks to the S27 and S28 sub-booster phases to set the beam energy.  Not sure of units.  For monitoring of beam energy I think you want to look at fb31 engye-.

I see, E've noticed from the MCC raw data in zen's ascii files that the units were actually present :). The value is in MeV, for EGAIN1E-, however FB31 ENGYE- isn't present in the ascii data. Guess we'll just have to live with that. Maybe could be nice to have it in.

Thanks !!
     bino


> mike
> 
> -----Original Message-----
> From: Bino Maiheu [mailto:bino at hep.ucl.ac.uk]
> Sent: Wednesday, August 29, 2007 11:12 AM
> To: ESA T474 Mailing list
> Subject: [esa-t474] beam DQ
> 
> hi all. I'm adding a repository with beam DQ plots ( fb setpoints, 
> corrector settings, toroid readings, linac phases etc... ) it's going 
> in the usual place http://www.hep.ucl.ac.uk/lc/T474/EsaData/daql/
> under beam. I'll have to rerun the plots once i have had a closer look to the calibrated 3I2/3I2 toroid readings. once that's done, i'll link everyting off the runinfo database and put some additional info in it, like e.g. average feedback setpoint positions.
> 
> there are a number of things however i would like to understand 
> better, so if anyone has an idea of the following, you're welcome, 
> i'll add it to the database
> 
> - would be nice to have some docu on what the LINAC phases influence
>   down in the end station
> 
> - the sector 29 feedback, i assume the units there are um and urad ?
> 
> - the fb31 EGAIN1E-  (FB31_FB31ESA_EGAIN1E-), what would be exactly in
>   there ? ( units ? )
> 
> 
> thanks.
> bino
> 
> 
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