Re: [Brahms-dev-l] Drift velocity calibrations

Hi:  The miscreant files have been removed.  ...steve
On Mar 3, 2007, at 5:03 PM, Flemming Videbaek wrote:

> Hi selemon,
>
> sounds good - I can certainly rebuild but
> what does it mean they are bad.
> Stve can you clean up cvs , and I will rebuild.
> (too bad we never got this in the DB)
>
> Flemming
>
> --------------------------------------------
> Flemming Videbaek
> Physics Department
> Bldg 510-D
> Brookhaven National Laboratory
> Upton, NY11973
>
> phone: 631-344-4106
> cell:       631-681-1596
> fax:        631-344-1334
> e-mail: videbaek @ bnl gov
> ----- Original Message -----
> From: "Bekele, Selemon" <bekeleku_at_ku.edu>
> To: "Flemming Videbaek" <videbaek_at_bnl.gov>; <brahms-dev- 
> l_at_lists.bnl.gov>
> Sent: Saturday, March 03, 2007 5:28 PM
> Subject: RE: [Brahms-dev-l] Drift velocity calibrations
>
>
>
> Hi Flemming, Steve
>
>     you are right, the problem was the bad drift velocity picked up
> from the database. Your suggestion solved the problem, I managed to
> calibrate all the runs. I need to have the following files to be
> removed and brat rebuilt again so that I can finish with the
> calibrations and go on to make the ltr files:
>
> /opt/brahms/new/share/brat/params/mult/BrCalibrMult_12682.dat
> /opt/brahms/new/share/brat/params/mult/BrCalibrMult_13414.dat
>
> These files seem to be corrupted.
>
> Selemon,
>
> -----Original Message-----
> From: Flemming Videbaek [mailto:videbaek_at_bnl.gov]
> Sent: Sat 3/3/2007 2:13 PM
> To: Bekele, Selemon; brahms-dev-l_at_lists.bnl.gov
> Subject: Re: [Brahms-dev-l] Drift velocity calibrations
>
> Hi Selemon,
>
> The problem is the Vdrift is still read from the Database so it has  
> a bad values.
> The way to fix this, and in fact the calibrateFibDrift.C script  
> should have this set-
> but in former times we never tried to calibrate runs with BAD  
> entries in the DB
> (again the quality issue that someone commited BAD calibration,  
> rather than just leaving them alone !)
> In the script should should add
> tpcCalModule->SetUseDriftVelocity(kFALSE) ;
> then the module read the default parameter valut of 0.016 for  
> vdrift from the acsii file, and I strongly suspect this will
> work
>
> --------------------------------------------
> Flemming Videbaek
> Physics Department
> Bldg 510-D
> Brookhaven National Laboratory
> Upton, NY11973
>
> phone: 631-344-4106
> cell:       631-681-1596
> fax:        631-344-1334
> e-mail: videbaek @ bnl gov
> ----- Original Message -----
> From: "Bekele, Selemon" <bekeleku_at_ku.edu>
> To: <brahms-dev-l_at_lists.bnl.gov>
> Sent: Saturday, March 03, 2007 1:38 PM
> Subject: [Brahms-dev-l] Drift velocity calibrations
>
>
>>
>> Hi,
>>
>>  I made plots of the x and y position distributions for T1 hits.  
>> The x
>> distributions are OK but the y distributions are empty which was  
>> the reason
>> to do the calibration with the T2 fibers. I was getting empty adc  
>> distributions
>> for the T2 fibers.
>>  Then, I run the calibration for T2 and found that the adc  
>> distributions are OK.
>> Then I checked  BrTpcDriftFibCalModule to see where thingis go  
>> wrong and
>> found that the  track tables for the runs are empty for T1. The  
>> adc distribution
>> are filled only if there tracks.
>>
>> I have updated (added some more plots) the material I posted on  
>> the agenda page for last friday.
>>
>> Selemon,
>> _______________________________________________
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>>
>
>
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