[esa-t474] beam DQ

[Bino Maiheu]

Hi Mike,

Hmm :s, I've grepped through every 50th raw ascii file we've taken
looking for those 3 variables you mentioned at the end of the
mccSetup.txt. However, I couldn't find any trace of them :(. Maybe
something went wrong with the DAQ or that file didn't get copied to the
right location or so for Zen's DAQ to pick it up ?

Jonny, Could you maybe find out from Luis what variable exactly he's
cutting on in the datafiles ?? 

Cheers,
     bino

On Thu, 2007-08-30 at 15:52 -0700, Woods, Michael B. wrote:
> 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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          @ -- Bino Maiheu, Dr. ;) ---------oOO----(_)----OOo------- @
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