sPHENIX HCal discussion

[John Haggerty <haggerty AT bnl.gov>]

Martin,

Is there something different in the decoder version that hasn't 
propagated to RCF?  I see on that same file:

[jsh@rcas2074 LED]$ ddump -f LED_s25_south-00000047-0000.evt
Packet  1001  1000 -1 (sPHENIX Packet)  92 (UNKNOWN)
    0 |  0c01 1f32 ffff 000c 0001 faaf 061b 0638
    8 |  0622 063c 0626 0644 062e 064f 064f 0669
   16 |  0668 0677 0782 078b 0e38 0f7a 1b1b 1fb0
   24 |  27b3 2ef5 2897 2fde 2080 2579 1700 19f6
   32 |  103b 11e6 0c6f 0d58 0a77 0b05 0959 09d2

where I see on emcal data:

[jsh@rcas2074 test]$ ddump -f test_00020480-0000.prdf  | more
Packet  21351  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)
Evt Nr:      0
Clock:       47828
Nr Modules:  3
Channels:    192
Samples:     31
Det. ID:     0x5555
Mod. Addr:   0x3333
FEM Slot:          14      13      12
FEM Evt nr:         1       1       1
FEM Clock:      47819   47819   47819
Even chksum: 0xc883   calculated:  0xc883 ok
Odd chksum:  0x8671   calculated:  0x8671 ok

On 2022-03-25 17:21, Martin Purschke wrote:
> 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

---
John Haggerty
haggerty AT bnl.gov
cell: 631 741 3358