sPHENIX HCal discussion

[Martin Purschke <purschke AT bnl.gov>]

All, especially Jin,

I started to summarize the current PRDF structure changes as compared to
2017.

I added a chapter "What is new in the data structures in 2017" in
https://wiki.bnl.gov/sPHENIX/index.php/2017_calorimeter_beam_test#What_is_new_in_the_data_structures_in_2017

Basically we are reading more scalers in packet 910/911, and added one
camera packet 944 (not to let a cam go to waste).

begin-run packet 905 (just its presence, not content) indicates that the
new (high-eta) emcal is connected. Example code on the Wiki.

Best,
        Martin



On 1/20/17 16:20, Huang, Jin wrote:
> Hi, John and Martin
> 
>  
> 
> Thanks for the lots of work initiating the test. 8-GeV scan sounds like
> a good plan. And I think Martin's marker packet in PRDF will be very
> useful for analysis too (good to have a copy in numerical format too).
> 
>  
> 
>> I didn't understand the suggestion in the PbGl item in the
> 
>> wiki to "make sure timing peak of the lead glass data is stable with
> in one
> 
>> BCO." 
> 
>  
> 
> Hmm. I guess I should say move the PbGL signal earlier in the sample
> train. In the past run 2016, the PbGL was recorded with peak around
> sample 15-21. Almost for all events, the tail of ADC spectrum just fall
> off the cliff beyond max sample of 24. Although one can still fit for
> the max, this prevented us to perform an analysis of 1100V to 1200V
> comparison by just integrate the ADC count (although signal shape could
> change between two HV settings, presumably the ADC integral remain the
> same.). Example 2016 data shown below.
> 
>  
> 
> Therefore, the request I meant is to move the PbGL trigger to come
> 100-150ns later, so we could sample the whole curve. Wiki updated.
> 
>  
> 
>  
> 
>> To make this data widely useful, we'll need to run the production and
> look at
> 
>> it--that can be done remotely if we update the wiki with runs that we deem
> 
>> worth analyzing. 
> 
>  
> 
> A wiki run list will be useful. Just chat with Chris, that we will setup
> a new code base for prototype-3 analysis and decouple it with
> prototype-2. A channel map will be useful in setting up the PRDF
> unpacker. Most other infrastructure should be similar. When production
> is setup, I also need to work on the analysis tutorial ...
> 
>  
> 
> Cheers
> 
>  
> 
> Jin
> 
>  
> 
>  
> 
> ______________________________
> 
>  
> 
> Jin HUANG, Ph. D.
> 
>  
> 
> Associate Physicist
> 
> Brookhaven National Laboratory
> 
> Physics Department, Bldg 510 C
> 
> Upton, NY 11973-5000
> 
>  
> 
> Office: 631-344-5898
> 
> Cell:   757-604-9946
> 
> ______________________________
> 
>  
> 
>  
> 
>> -----Original Message-----
> 
>> From: sphenix-hcal-l-bounces AT lists.bnl.gov [mailto:sphenix-hcal-l-
> 
>> bounces AT lists.bnl.gov] On Behalf Of John Haggerty
> 
>> Sent: Friday, January 20, 2017 6:18 AM
> 
>> To: sphenix-hcal-l AT lists.bnl.gov; sphenix-emcal-l AT lists.bnl.gov
> 
>> Subject: Re: [Sphenix-hcal-l] Test beam data wish list
> 
>>
> 
>> Jin and Abhisek,
> 
>>
> 
>> Thanks for putting this together, after last week's beamline scare I
> thought
> 
>> maybe we better have a plan that would get us some of what we want in
> 
>> short order in case the septa failed completely.
> 
>>
> 
>> Looking over the list and thinking what we need to get done this
> weekend to
> 
>> confirm that we have everything connected and working to the best of our
> 
>> knowledge, I think we should spend most of our time this weekend at
> 
>> -8 GeV and take data at
> 
>>
> 
>> - sweet spot of EMCAL3
> 
>> - PbGl
> 
>> - HCAL only
> 
>> - sweet spot of EMCAL2
> 
>>
> 
>> in that order, which will debug/verify the hodoscope, the Cerenkov
> counters,
> 
>> our own detectors, and give us some experience with the wire chamber data,
> 
>> and would let us exercise new analysis necessary for the
> 
>> EMCAL3 (the channel map is new).  It seems to me that ideally, we could
> 
>> then produce, albeit with unit calibration constants, resolutions for
> the two
> 
>> EMCAL's and the HCAL alone which could be directly compared with last
> year.
> 
>>
> 
>> In looking at what we've installed and done, I think it would better than
> 
>> trying to start with a big calibration scan, before we have fully
> established
> 
>> that everything is works and we can analyze it as we did at the end of
> the last
> 
>> beam test, and we'll be lucky to get through this in a weekend.  Also, it
> 
>> doesn't require a lot of beam development, and since the beam has been off
> 
>> for so long, there may be startup hiccups when we ask for changed
> 
>> conditions.  -8 GeV seems like a good way to start for that reason, and
> 
>> because we have a lot of data from last time there.  If we take this,
> have time
> 
>> to study it, and are ready to go on, I think the next thing would be
> an energy
> 
>> scan in the PbGl.  I didn't understand the suggestion in the PbGl item
> in the
> 
>> wiki to "make sure timing peak of the lead glass data is stable with
> in one
> 
>> BCO."  As far as I know, there is no way to synchronize the ADC clock with
> 
>> beam events, and I hope that nothing we did in the past relied on the peak
> 
>> being in any particular sample.
> 
>>
> 
>> Also, we will be sharing time for the next few days with T-1068, which I
> 
>> believe is development of an SVX4-based Si telescope by groups from KEK
> 
>> and Osaka for tests of ATLAS pixel and strip detectors, I would guess
> they'll
> 
>> want 120 GeV protons, and if we wanted to run parasitically with them (not
> 
>> sure we have the person-power to do that), we could in principle take MIP
> 
>> calibration data with them in the beam, they should be pretty low mass.
> 
>>
> 
>> To make this data widely useful, we'll need to run the production and
> look at
> 
>> it--that can be done remotely if we update the wiki with runs that we deem
> 
>> worth analysing.  We'll have to exercise some care in changing EMCAL's,
> 
>> since the geometry and channel map are different, but the data will look
> 
>> exactly the same unless we do something to identify it.  We could
> change the
> 
>> packet id, I suppose, but that would take the HCAL and hodoscope with it.
> 
>> Also, we have to make some changes to the database to account for two
> 
>> emcal's and changes to the hcal controller.
> 
>>
> 
>> On 1/18/17 3:51 PM, Huang, Jin wrote:
> 
>> > Hi, Everyone
> 
>> >
> 
>> >
> 
>> >
> 
>> > In the HCal meeting today, John Haggerty asked Abhisek and I to come
> 
>> > up with a wish list for key measurements for the on-going beam test.
> 
>> >
> 
>> >
> 
>> >
> 
>> > Please find a draft EMCal data wish list at this link:
> 
>> >
> 
>> https://wiki.bnl.gov/sPHENIX/index.php/2017_calorimeter_beam_test#EMC
> <https://wiki.bnl.gov/sPHENIX/index.php/2017_calorimeter_beam_test#EMCal_Standalone_Data>
> 
>> al_Standalone_Data 
>> <https://wiki.bnl.gov/sPHENIX/index.php/2017_calorimeter_beam_test#EMCal_Standalone_Data>.
> 
>> > Seven data set was rated high, mid and low. Welcomed to give
> 
>> > suggestions or edit the list on wiki.
> 
>> >
> 
>> >
> 
>> >
> 
>> > Cheers,
> 
>> >
> 
>> >
> 
>> >
> 
>> > Jin
> 
>> >
> 
>> >
> 
>> >
> 
>> > ______________________________
> 
>> >
> 
>> >
> 
>> >
> 
>> > Jin HUANG, Ph. D.
> 
>> >
> 
>> >
> 
>> >
> 
>> > Associate Physicist
> 
>> >
> 
>> > Brookhaven National Laboratory
> 
>> >
> 
>> > Physics Department, Bldg 510 C
> 
>> >
> 
>> > Upton, NY 11973-5000
> 
>> >
> 
>> >
> 
>> >
> 
>> > Office: 631-344-5898
> 
>> >
> 
>> > Cell:   757-604-9946
> 
>> >
> 
>> > ______________________________
> 
>> >
> 
>> >
> 
>> >
> 
>> > *From:*sphenix-hcal-l-bounces AT lists.bnl.gov
> 
>> > [mailto:sphenix-hcal-l-bounces AT lists.bnl.gov] *On Behalf Of *John
> 
>> > Lajoie
> 
>> > *Sent:* Tuesday, January 17, 2017 5:54 PM
> 
>> > *To:* Lynch, Don <dlynch AT bnl.gov <mailto:dlynch AT bnl.gov>>;
> sphenix-hcal-l AT lists.bnl.gov <mailto:sphenix-hcal-l AT lists.bnl.gov>
> 
>> > *Subject:* Re: [Sphenix-hcal-l] HCAL bi-weekly meeting
> 
>> >
> 
>> >
> 
>> >
> 
>> > Hi Don,
> 
>> >
> 
>> >     Thanks for the update!  I certainly appreciate that you want to
> 
>> > keep the engineering meeting tight, but I'll look forward to poking
> 
>> > through the slides.
> 
>> >
> 
>> > John
> 
>> >
> 
>> >
> 
>> >
> 
>> > On 1/17/2017 4:51 PM, Lynch, Don wrote:
> 
>> >
> 
>> >     Hi John,
> 
>> >
> 
>> >
> 
>> >
> 
>> >     We won’t have any Engineering input for tomorrow’s meeting, as we
> 
>> >     are meeting with Walt Sondheim on MAPS parameters at the same time.
> 
>> >     We do have a BNL internal Calorimeter engineering meeting on Friday
> 
>> >     to go over Anatoli’s latest analyses, Rich’s current light
> 
>> >     collection design status and general engineering issues for
> 
>> >     finalizing HCal mechanical design (steel, light collection, etc.,
> 
>> >     inner and outer) and advancing the EMCal mechanical design.
> 
>> >
> 
>> >
> 
>> >
> 
>> >     We are not putting this on bluejeans, as we want to keep the
> 
>> >     engineering discussion tight, but we will post some slides on
> Indico.
> 
>> >
> 
>> >
> 
>> >
> 
>> >     - Don Lynch
> 
>> >
> 
>> >
> 
>> >
> 
>> >     *From: *<sphenix-hcal-l-bounces AT lists.bnl.gov
> 
>> >     <mailto:sphenix-hcal-l-bounces AT lists.bnl.gov>> on behalf of John
> 
>> >     Lajoie <lajoie AT iastate.edu <mailto:lajoie AT iastate.edu
> <mailto:lajoie AT iastate.edu%20%3cmailto:lajoie AT iastate.edu>>>
> 
>> >     *Date: *Tuesday, January 17, 2017 at 3:11 PM
> 
>> >     *To: *"sphenix-hcal-l AT lists.bnl.gov
> 
>> >     <mailto:sphenix-hcal-l AT lists.bnl.gov>" <sphenix-hcal-l AT lists.bnl.gov
> 
>> >     <mailto:sphenix-hcal-l AT lists.bnl.gov>>
> 
>> >     *Subject: *[Sphenix-hcal-l] HCAL bi-weekly meeting
> 
>> >
> 
>> >
> 
>> >
> 
>> >     Dear HCAL'ers:
> 
>> >
> 
>> >         It's been a while, but we will resume our bi-weekly HCAL
> 
>> >     meetings this coming Wednesday, Jan 18th, at 2:30PM BNL time.   The
> 
>> >     agenda is evolving here at:
> 
>> >
> 
>> >     https://indico.bnl.gov/conferenceDisplay.py?confId=2762
> 
>> >
> 
>> >     I'm hoping we can get an update on the test beam, and maybe some
> 
>> >     additional contributions.
> 
>> >
> 
>> >     Regards,
> 
>> >     John
> 
>> >
> 
>> >     --
> 
>> >
> 
>> >     *John Lajoie*
> 
>> >
> 
>> >     Professor of Physics
> 
>> >
> 
>> >     Iowa State University
> 
>> >
> 
>> >
> 
>> >
> 
>> >     (515) 294-6952
> 
>> >
> 
>> >     lajoie AT iastate.edu <mailto:lajoie AT iastate.edu>
> <mailto:lajoie AT iastate.edu>
> 
>> >
> 
>> >     Facebook <http://www.facebook.com/john.lajoie.5>LinkedIn
> 
>> >     <http://www.linkedin.com/pub/john-lajoie/9/a9/bba/>
> 
>> >     Contact me: Skypejohn.lajoie
> 
>> >
> 
>> >
> 
>> >
> 
>> > --
> 
>> >
> 
>> > *John Lajoie*
> 
>> >
> 
>> > Professor of Physics
> 
>> >
> 
>> > Iowa State University
> 
>> >
> 
>> >
> 
>> >
> 
>> > (515) 294-6952
> 
>> >
> 
>> > lajoie AT iastate.edu <mailto:lajoie AT iastate.edu>
> <mailto:lajoie AT iastate.edu>
> 
>> >
> 
>> > Facebook <http://www.facebook.com/john.lajoie.5>LinkedIn
> 
>> > <http://www.linkedin.com/pub/john-lajoie/9/a9/bba/>
> 
>> > Contact me: Skypejohn.lajoie
> 
>> >
> 
>> >
> 
>> >
> 
>> > _______________________________________________
> 
>> > Sphenix-hcal-l mailing list
> 
>> > Sphenix-hcal-l AT lists.bnl.gov <mailto:Sphenix-hcal-l AT lists.bnl.gov>
> 
>> > https://lists.bnl.gov/mailman/listinfo/sphenix-hcal-l
> 
>> >
> 
>>
> 
>>
> 
>> --
> 
>> John Haggerty
> 
>> email: haggerty AT bnl.gov <mailto:haggerty AT bnl.gov>
> 
>> cell: 631 741 3358
> 
>> _______________________________________________
> 
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> 
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> 
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> 
> 
> 
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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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