sPHENIX EMCal discussion

[Martin Purschke <purschke AT bnl.gov>]

Vera,

we have recorded the Cherenkov pressures in the begin-run event of the
data files, so you can find out. The list of packets with what I call
"environmental data" - those pressures, table positions, etc etc is at
https://wiki.bnl.gov/sPHENIX/index.php/T-1044/Meta_data_documentation

You can do

> $ ddump -t 9 -p 910 
> /sphenix/data/data01/t1044-2016a/fnal/beam/beam_00002298-0000.prdf
> S:MTNRG  = -1     GeV
> F:MT6SC1 =  5790      Cnts
> F:MT6SC2 =  3533      Cnts
> F:MT6SC3 =  1780      Cnts
> F:MT6SC4 =  0         Cnts
> F:MT6SC5 =  73316     Cnts
> E:2CH    =  1058  mm
> E:2CV    =  133.1 mm
> E:2CMT6T =  73.84 F
> E:2CMT6H =  32.86 %Hum
> F:MT5CP2 =  .4589 Psia
> F:MT6CP2 =  .6794 Psia

and

> $ ddump -t 9 -p 910 
> /sphenix/data/data01/t1044-2016a/fnal/beam/beam_00002268-0000.prdf
> S:MTNRG  = -2     GeV
> F:MT6SC1 =  11846     Cnts
> F:MT6SC2 =  7069      Cnts
> F:MT6SC3 =  3883      Cnts
> F:MT6SC4 =  0         Cnts
> F:MT6SC5 =  283048    Cnts
> E:2CH    =  1058  mm
> E:2CV    =  133   mm
> E:2CMT6T =  74.13 F
> E:2CMT6H =  37.26 %Hum
> F:MT5CP2 =  12.95 Psia
> F:MT6CP2 =  14.03 Psia

The last two entries are the pressures (and you see they did change).

Best,
        Martin




On 5/14/16 15:32, Loggins, Vera wrote:
> Hi all,
> 
> I have plotted the Cherenkov distributions for the C1, C2 inner, and C2
> outer variables.  This was for the Energy Scan (UIUC centered, Tower 21,
> 350k Events)
> <https://wiki.bnl.gov/sPHENIX/index.php/T-1044/EMCal_good_run_note#Energy_Scan_.28UIUC_centered.2C_Tower_21.2C_350k_Events.29>
>  and Production_0417_CEMC_MIP_set2_v3.
>  The run numbers are the following:
> run 2298 (1GeV), 2268 (2GeV), 2260(3GeV),
> 2256(4GeV),2247(6GeV),2295(8GeV),2276(12GeV),2280(16GeV).  The link in
> the Wiki is:
> https://wiki.bnl.gov/sPHENIX/index.php/T-1044/EMCal_good_run_note#Energy_Scan_.28UIUC_centered.2C_Tower_21.2C_350k_Events.29
> I had a quick question on the change in the overall distributions of C1
> and C2 inner and C2 outer.  It appears that the distributions change for
> C1, at 1,8,12,and 16 GeV compared tot he other energies.  It seems that
> the pressure is changed.  Also the same is true for C2 inner at 2,3, and
> 4 GeV, and also for C2 outer at 1,8,12,and 16 GeV.  Any help on
> understanding this would be appreciated.
> 
> Cheers,
> Vera
> 
> 
> 
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-- 
Martin L. Purschke, Ph.D.        ;   purschke AT bnl.gov
                                 ;   http://www.phenix.bnl.gov/~purschke
                                 ;
Brookhaven National Laboratory   ;   phone: +1-631-344-5244
Physics Department Bldg 510 C    ;   fax:   +1-631-344-3253
Upton, NY 11973-5000             ;   skype: mpurschke
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