[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: BCAL run 2334



Hi David:

specifically, we wanted to look at the BCAL raw ADCs, for all 36 of them.  I am kind of sick today and heading home, so I don't have time to look at the plots below in ROOT.  If, id_vs_adc (which has no pedestal subtraction) can be used to project out the individual ADCs, then we're done.  If not, they should be generated.  Do we have bcal_mon for most of the runs (at least the ones in the 2334-2370 range that we are currently looking at)?

Hope this helps.

Cheers, Zisis...

On Jun 14, 2007, at 2:41 PM, David Lawrence wrote:


Hi Zisis,

   I was trying to remember what exactly I said I would do with the ADC values for run 2334 at the calorimetry meeting on Tuesday. I remember you asked me to check on bcal_mon. I just looked at it and it appears the pedestals are not subtracted for the histograms:

channel_vs_ped_slot18
channel_vs_ped_slot19
id_vs_adc

The ones with pedestal subtraction are:

id_vs_E
adcsumN
adcsumS
adcsumN_vs_adcsumS

For bcal_dst and bcal_ascii, the pedestals are subtracted from the values that go into the tree (n1:n18, s1:s18) and ASCII file respectively.

I have some vague recollection that you wanted a bcal_dst file for run 2334 without pedestal subtraction. Is this right?

Please advise.

Regards,
-David

-- 

------------------------------------------------------------------------
 David Lawrence Ph.D.
 Staff Scientist                 Office: (757)269-5567   [[[  [   [ [        Jefferson Lab                   Pager:  (757)584-5567   [  [ [ [ [ [    http://www.jlab.org/~davidl     davidl@jlab.org         [[[  [[ [[ [[[
------------------------------------------------------------------------




---
Dr. Zisis Papandreou |  email: zisis@uregina.ca
Department of Physics |  tel. : (306) 585-5379
University of Regina |  tel. : (306) 585-4149
Regina, SK  S4S 0A2 |  fax. : (306) 585-5659
World Wide Web:    http://www.phys.uregina.ca/sparro/zisis/