sPHENIX HCal discussion

[Martin Purschke <purschke AT bnl.gov>]

John,

92 aka IDDIGITIZERV1 is correct - it denotes the standalone data read 
directly through the crate controller, not the DCM2. The iValue API is 
exactly the same as for the others - well, that's the idea of the hitformat.

I left a packet id 1001 dialed in. But once you have the packet, you 
shouldn't see a difference.

        Best,
                Martin


> $ ddump /data/phnxrc/standalone_hcal/LED_s25_
> LED_s25_north-00000048-0000.evt  LED_s25_north-00000054-0000.evt  
> LED_s25_south-00000047-0000.evt  LED_s25_south-00000053-0000.evt
> [phnxrc@daq06 standalone_hcal]$ ddump 
> /data/phnxrc/standalone_hcal/LED_s25_south-00000047-0000.evt
> Packet  1001  1000 -1 (sPHENIX Packet)  92 (IDDIGITIZERV1)
> Evt Nr:     1
> Clock:      64175
> Channels:   64
> Samples:    31
> L1 Delay:   50
> Slot Nr:    12
> Nr Modules: 1
>
>    0 |     1563    1570    1574    1582    1615    1640    1922    3640    
> 6939   10163   10391    8320    5888    4155    3183    2679    2393    2214  
>   2081    1981    1920    1880    1839    1791    1753    1728    1728    
> 1726    1718    1704    1698
>    1 |     1592    1596    1604    1615    1641    1655    1931    3962    
> 8112   12021   12254    9593    6646    4582    3416    2821    2514    2307  
>   2166    2051    1976    1936    1894    1838    1788    1760    1763    
> 1761    1750    1727    1715

...




On 3/25/22 10:58, John Haggerty wrote:
> Very nice, and congratulations to all!
>
> The data seem to be written with a different hit format than the beam 
> test data and emcal data we've taken... it seems to be 92 and we 
> normally record 93.  Could we make it that?  Thanks.
>
> On 2022-03-24 23:38, Martin Purschke via sPHENIX-HCal-l wrote:
> > Dear all,
> >
> > at long last we had all the ingredients together to read out a sector
> > of the HCal (sector 25 that happened to be connected) with a real
> > sPHENIX digitizer. All other tests in 912 or 1008 had been done using
> > the old PHENIX MBD electronics (and some were done with a DRS4). In
> > order to avoid any surprises, we had long planned to read the HCal out
> > with the "real thing". Today was the day.
> >
> > Dan, Stefan, Hanpu, and I took some pulser and LED data. This was
> > interleaved with other rigging work in the AH, but we got some useful
> > runs.
> >
> > I have first renamed the files to some more meaningful names (the DAQ
> > setup will become more polished tomorrow and over the weekend to do
> > that out of the box) and have uploaded them to the RCF at
> >
> > /sphenix/data/data02/sphenix/hcal/1008
> >
> > There are directories for LED, Pulser, cosmics (no cosmics files there 
> > yet).
> >
> > There are 48 connected channels out of the 64 that the digitizer has,
> > 0-23 the south half, and 24-47 the north half of the sector.
> >
> > For a quick look, I attach single event displays of the 48 channels vs
> > the 31 waveform samples for north + south (the LED/pulser works on a
> > half sector at a time). Those are LED runs.
> >
> > One of the questions we had that was already answered today: the
> > polarity of the signals is right.
> >
> >
> > We later switched to sector 2 at the about 6 o'clock position, where
> > we installed (or tried to) a cosmic ray telescope with 2 scintillator
> > paddles, one in the magnet and one underneath the barrel (Dan and
> > Stefan took some pictures). Unfortunately, while both worked just fine
> > in a test when I set up the coincidence logic the day before, I could
> > not get the lower one to hold HV today (maybe b/c we had drizzling
> > rain and high humidity today?). Since I had to leave early today, for
> > now I used just the upper one, which of course is a really poor
> > trigger. But I do see a cosmic signal here and there. More tomorrow.
> >
> > The list of runs and some more info in the ELog at
> >
> > https://sphenix-intra.sdcc.bnl.gov/WWW/elog/HCAL/1432
> >
> > Best,
> >     Martin
> >
> >
> > _______________________________________________
> > sPHENIX-HCal-l mailing list
> > sPHENIX-HCal-l AT lists.bnl.gov
> > https://lists.bnl.gov/mailman/listinfo/sphenix-hcal-l
>
> ---
> John Haggerty
> haggerty AT bnl.gov
> cell: 631 741 3358


--
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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