sPHENIX EMCal discussion

[Edward Kistenev <kistenev AT bnl.gov>]

Eric, one more question - at a bending rate you have in that picture - how long (distance) will it take to bring ALL  fibers together (tight bundle).

Edward

On Apr 18, 2017, at 1:05 PM, Edouard Kistenev <kistenev AT bnl.gov> wrote:

Nice picture. Tell me please - the element which “bundles” the fibers is just the frame - right? 

Have you ever  thought of using plastic meshes - less danger to cut the cladding on sharp edges. Delrin or something even stronger. Of using pc-board technology. 200mkm pc-board - Cu plating can be important for adhesion and “no hanging chads” production (stamping).  Using Pb (hardened) at least for the last mesh - then you will not be limited by thickness of the mesh (2mm of Pb are easy to stamp - no lithography) so the bend against sharp edge will be less of a problem.

Edward

On Apr 18, 2017, at 11:44 AM, Eric T. <thorslan AT illinois.edu> wrote:

The dog ate my homework.

Will have a full report on the new test next week.

<dhmoeefkklnennmm.png>

On 4/17/2017 4:18 PM, Sickles, Anne M wrote:

Hi,

We’ll meet tomorrow for the EMCal meeting at 3ET.  I expect we’ll hear more about the lightguides as well as results from another test block from Eric.  The indico is here:

https://indico.bnl.gov/conferenceDisplay.py?confId=3045

Best,

Anne

Anne Sickles

Assistant Professor

University of Illinois at Urbana Champaign

sickles AT illinois.edu

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