sPHENIX HCal discussion

[Edward Kistenev <kistenev AT bnl.gov>]

Sorry but I could think about one thing only. In our geometry the tiles are 
mostly exposed to radiation on the narrow end only (near the fiber loops 
which are normally treated as reflectors). If exposition could be graded in a 
similar way - that can be of interest.
                                Edward



On Jul 23, 2018, at 10:21 PM, John Haggerty <haggerty AT bnl.gov> wrote:

Hello,

Sorry I missed last week's meeting (my flight was canceled coming back from 
the family to-do).

Since I got back, I finished up some reproducibility tests I was doing before 
I left, and I was able to start trying to radiation damage our tiles as 
suggested in the CD-1 review.  I was able to do it parasitically with Takao 
and and John K.'s TPC electronic test.

I put some slides about it under "First Radiation Dose, July 23, 2018" on the 
previous agenda page:

> https://indico.bnl.gov/event/4836/

I post these here now because I have another chance to expose the tiles 
tomorrow, and if anyone has any suggestions or insights about what to dose 
them to, I thought I'd give you the opportunity to weigh in, since it's a 
one-directional experiment.

I would probably go for another 10 or 15 krad left to my own devices.

-- 
John Haggerty
email: haggerty AT bnl.gov
cell: 631 741 3358
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