sPHENIX EMCal discussion

[Xiaochun He <xhe AT gsu.edu>]

Dear John,

This is quite useful. Since you have done it, could you add the list of cosmic ray runs too?

Megan, Abhisek and I chatted briefly yesterday about taking more cosmic ray data while the detector is still sitting in the hi-bay area as one complete piece. It seems very doable since you took more temperature-related measurements. 

As we have seen from Murad's cosmic data comparison with simulation, it seems possible to have tower-by-tower calibration using cosmic rays if we can take more dedicated cosmic ray data. 

What I have proposed is to set up a vertical cosmic ray trigger using a pair of small scintillator paddles (covering the width of one tower) and take data with paddles at different sections of the towers.  It would be interesting to see if there is any significant light collection difference while the paddles are put at the front section of a tower in comparison with the case when they are at the back section.

Best,

Xiaochun

--

Xiaochun He

Distinguished University Professor

 and Physics Graduate Director

Department of Physics & Astronomy

Georgia State University

Atlanta, GA 30303

---

From: sphenix-emcal-l-bounces AT lists.bnl.gov <sphenix-emcal-l-bounces AT lists.bnl.gov> on behalf of John Haggerty <haggerty AT bnl.gov>
Sent: Wednesday, July 13, 2016 10:23:10 PM
To: sphenix-hcal-l AT lists.bnl.gov; sphenix-emcal-l AT lists.bnl.gov
Subject: [Sphenix-emcal-l] T-1044 runs

 

I heard in the very useful beam test workfest that there was some
difficulty in locating runs. I made a web page that queries the
database, maybe this will help locate runs of interest:

> https://na01.safelinks.protection.outlook.com/?url="https%3a%2f%2fwww.phenix.bnl.gov%2fWWW%2fsPHENIX%2fhaggerty%2ft1044%2frundb%2f&data=01%7c01%7cxhe%40gsu.edu%7c106eac38e3264d2c241e08d3ab8dcfdd%7c515ad73d8d5e4169895c9789dc742a70%7c0&sdata=Cz2bsiOL5IPTs9S%2bU5B4OZgUvYEOyulxUMJmLqwHAlY%3d

Although I copied the run database I made during the beam test to a
Postgres table, it turned out that it was just as easy to access to the
sqlite database directly.  Let me know if you encounter any problems
with this, and if it seems ok, I'll add a link in the wiki.

--
John Haggerty
email: haggerty AT bnl.gov
cell: 631 741 3358
_______________________________________________
Sphenix-emcal-l mailing list
Sphenix-emcal-l AT lists.bnl.gov
https://na01.safelinks.protection.outlook.com/?url="https%3a%2f%2flists.bnl.gov%2fmailman%2flistinfo%2fsphenix-emcal-l&data=01%7c01%7cxhe%40gsu.edu%7c106eac38e3264d2c241e08d3ab8dcfdd%7c515ad73d8d5e4169895c9789dc742a70%7c0&sdata=F%2fbb2BS6nMR0pY59kn47Ln3hCg36w5EtSkTOH9Ur90U%3d