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Re: [Sphenix-hcal-l] High eta HCal tile tests

From: John Lajoie <lajoie AT iastate.edu>
To: sphenix-hcal-l AT lists.bnl.gov
Subject: Re: [Sphenix-hcal-l] High eta HCal tile tests
Date: Thu, 20 Apr 2017 21:19:47 -0500

Hi Ron,

This is the kind of thing that give me nightmares about the tiles. It's not clear how we would see some if these kind of issues, other than I guess a reduced cosmics response. I wonder if there is any cosmics data for this tile to see where the peak was compared to other tiles? Abhisek?

John

On 4/20/2017 5:05 PM, Ron Belmont wrote:

Hi All,

It seems like the attachment was rejected (too large maybe). Here's a link: https://www.dropbox.com/s/2ifz75bfsjaw3b9/higheta.pdf?dl=0

Regards,

Ron

On Thu, Apr 20, 2017 at 4:02 PM, Ron Belmont <ron.belmont AT colorado.edu> wrote:

Dear HCal-ers,

Attached is a short set slides we made made to show the scan of the high eta outer HCal tile we've done. The fiber is cracked near the SiPM, which spoils the scan. The shipping box has a bit of a gash in it, but it was packed extremely carefully with lots of foam, and there was no visible damage on any of the tiles during the unpacking process.

If there aren't any objections, we will unwrap more tiles to test them. We're hopeful that analysis of the 2017 Tile Mapper will help shed some light when the damage to the fiber may have occurred on this particular tile (before or after the 2017 beam test).

Regards,

Sebastian and Ron

-----------------------------------------------------
Ron Belmont
Postdoctoral Research Associate
University of Colorado, Boulder
ron.belmont AT colorado.edu
-----------------------------------------------------

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John Lajoie

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[Sphenix-hcal-l] High eta HCal tile tests, Ron Belmont, 04/20/2017
- Re: [Sphenix-hcal-l] High eta HCal tile tests, Ron Belmont, 04/20/2017
  - Re: [Sphenix-hcal-l] High eta HCal tile tests, John Lajoie, 04/20/2017
  - Re: [Sphenix-hcal-l] High eta HCal tile tests, Edouard Kistenev, 04/21/2017
    - Re: [Sphenix-hcal-l] High eta HCal tile tests, Abhisek Sen, 04/21/2017
      - Re: [Sphenix-hcal-l] High eta HCal tile tests, John Lajoie, 04/21/2017