sPHENIX EMCal discussion

[Edward Kistenev <kistenev AT bnl.gov>]

Just couple pictures from energy scan in stand alone HCal:

- total energy in HCal vs asymmetry in energies visible in HInner and HOuter. Blob on the left - hadrons which left very little of energy in HInner , blob on the right - electrons, line at the bottom - muons which are plenty in that beam;

- projection of a same on Y-axis. Fit made attempting to cut electron blob. Sigma ~4.5 GeV (below 100/sqrt(E). Muons deposit ~2.5 GeV in calorimeter in ths calibration.

Edward

  

On Jan 22, 2017, at 11:02 PM, John Haggerty <haggerty AT bnl.gov> wrote:

Abhisek et al.,

We had trouble today with our network in FTBF today, but Martin resolved
it this afternoon and we are up-to-date in copying over.

Hopefully, we are updating the elog better now as well, but here is an
run index of data taken with the beam so far:

https://www.phenix.bnl.gov/WWW/sPHENIX/haggerty/t1044/2017a/

We're still getting things up to speed, but not a bad haul for the first
few days.

If someone points me to web space accessible to sphenix instead of just
phenix, we can put this up there.

On 1/22/17 1:09 PM, John Haggerty wrote:

Abhisek,

There's something funny about copying files to rcf... it looks to me
like we haven't gotten files over there since yesterday, we killed off
all rsync's and we're trying to figure out what's going on.

On 1/22/17 11:16 AM, Abhisek Sen wrote:

Hi Edward,
  Please be more explicit in the elog about the details on the runs
taken. I started the transfer to RCF. I will have a look once it transfer.

Cheers,
Abhisek

On Sun, Jan 22, 2017 at 11:32 AM Edward Kistenev <kistenev AT bnl.gov
<mailto:kistenev AT bnl.gov>> wrote:

   Jin, Sunday is HCAL standalone day. We are planning to take ~500k
   events at each of 4 or 5 energies (30/16/8/4 and maybe 2 GeV/c) -
   enough data to have ~2k events for every hodoscope crossing. If you
   have comments, suggestions - welcomed. Would be great to get some
   insight from this data fast.
   The first run (30GeV/c mostly negative pions) is 3285.

                           Edward


   On Jan 20, 2017, at 9:06 PM, Huang, Jin <jhuang AT bnl.gov
   <mailto:jhuang AT bnl.gov>> wrote:

   Hi, Martin and all

   Thanks! This flag is very convenient. This switch is incorporated
   into a not-yet-merged prototype3 production code:
   https://github.com/blackcathj/coresoftware/commit/3236ced2bc2c604a94ab94cd8f3fa9a1daa9259a

   Now I will also appreciate if someone could point to me the new HBD
   channel map for high-eta EMCal, which will put here:
   https://github.com/blackcathj/coresoftware/commit/3236ced2bc2c604a94ab94cd8f3fa9a1daa9259a#diff-4943c7156628a48058c793384d2269b3

   Cheers,

   Jin

   ______________________________

   Jin HUANG, Ph. D.

   Associate Physicist
   Brookhaven National Laboratory
   Physics Department, Bldg 510 C
   Upton, NY 11973-5000

   Office: 631-344-5898 <tel:(631)%20344-5898>
   Cell:   757-604-9946 <tel:(757)%20604-9946>
   ______________________________

-----Original Message-----
From: sphenix-hcal-l-bounces AT lists.bnl.gov

   <mailto:sphenix-hcal-l-bounces AT lists.bnl.gov>
   [mailto:sphenix-hcal-l- <mailto:sphenix-hcal-l->

bounces AT lists.bnl.gov <mailto:bounces AT lists.bnl.gov>] On Behalf Of

   Martin Purschke

Sent: Friday, January 20, 2017 6:37 PM
To: sphenix-hcal-l AT lists.bnl.gov <mailto:sphenix-hcal-l AT lists.bnl.gov>
Subject: Re: [Sphenix-hcal-l] Test beam data wish list

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 <tel:(631)%20344-5898>

Cell:   757-604-9946 <tel:(757)%20604-9946>

______________________________

-----Original Message-----

From: sphenix-hcal-l-bounces AT lists.bnl.gov

   <mailto:sphenix-hcal-l-bounces AT lists.bnl.gov>
   [mailto:sphenix-hcal-l- <mailto:sphenix-hcal-l->

bounces AT lists.bnl.gov <mailto: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

   <mailto:sphenix-hcal-l AT lists.bnl.gov>; sphenix-emcal-l AT lists.bnl.gov
   <mailto: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#EM
C

al_Standalone_Data>

al_Standalone_Data

<https://wiki.bnl.gov/sPHENIX/index.php/2017_calorimeter_beam_test#EM
Cal_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 <tel:(631)%20344-5898>

Cell:   757-604-9946 <tel:(757)%20604-9946>

______________________________

*From:*sphenix-hcal-l-bounces AT lists.bnl.gov

   <mailto:sphenix-hcal-l-bounces AT lists.bnl.gov>

[mailto: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>

   <mailto:dlynch AT bnl.gov <mailto:dlynch AT bnl.gov>>>;

sphenix-hcal-l AT lists.bnl.gov

   <mailto:sphenix-hcal-l AT lists.bnl.gov>
   <mailto: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>

  <mailto: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 <mailto:lajoie AT iastate.edu>

<mailto:lajoie AT iastate.edu

   <mailto:lajoie AT iastate.edu>%20%3cmailto:lajoie AT iastate.edu
   <mailto:20%253cmailto%3Alajoie 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>

  <mailto: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>

  <mailto: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 <tel:(515)%20294-6952>

  lajoie AT iastate.edu <mailto:lajoie AT iastate.edu>

   <mailto:lajoie AT iastate.edu <mailto: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 <tel:(515)%20294-6952>

lajoie AT iastate.edu <mailto:lajoie AT iastate.edu>

   <mailto:lajoie AT iastate.edu <mailto: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

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email: haggerty AT bnl.gov <mailto:haggerty AT bnl.gov>

   <mailto:haggerty AT bnl.gov <mailto:haggerty AT bnl.gov>>

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--
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   <mailto:purschke AT bnl.gov>

                               ;

    http://www.phenix.bnl.gov/~purschke

                               ;
Brookhaven National Laboratory   ;   phone: +1-631-344-5244

   <tel:(631)%20344-5244>

Physics Department Bldg 510 C    ;   fax:   +1-631-344-3253

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