[Sbs_gems] [EXTERNAL] Fwd: Cosmic data for UV Layer and J1

Ezekiel Wertz ewertz at email.wm.edu
Fri Nov 5 13:23:34 EDT 2021


Hi Kondo,

I am not as familiar with the UV layer mapping. So I'll talk to Sean about
this. I'll also do some comparison with the BB UV layer mappings.

Zeke

On Fri, Nov 5, 2021 at 1:19 PM Gnanvo, Kondo (kg6cq) <kg6cq at virginia.edu>
wrote:

> Hi Zeke,
>
> That is great. Thanks for these first results.
>
> It looks to me that there is a mapping problem with the UV layer.
>
> Please have a look at the pattern of the 2D hit map. Just a minor issue
>
>
>
> Best regards
>
> Kondo
>
>
>
> *From:* Sbs_gems <sbs_gems-bounces at jlab.org> *On Behalf Of *Ezekiel Wertz
> *Sent:* Friday, November 5, 2021 1:11 PM
> *To:* sbs_gems at jlab.org
> *Subject:* [Sbs_gems] [EXTERNAL] Fwd: Cosmic data for UV Layer and J1
>
>
>
>
>
> ---------- Forwarded message ---------
> From: *Ezekiel Wertz* <ewertz at email.wm.edu>
> Date: Fri, Nov 5, 2021 at 11:47 AM
> Subject: Cosmic data for UV Layer and J1
> To: <sbs_gem at jlab.org>
>
>
>
> Hi GEM folks,
>
>
>
> Attached you will find cosmic data and plots for the UV layer and J1.
> Taking cosmic data on the UV layer was priority, but we managed to get INFN
> J1 running as well. We took this data earlier this week. There were about
> 500,000 events.
>
>
>
> Other than a few strips that look not great, it looks like the UV layer is
> performing fairly well. Maybe Sean, Anu, or John has more to say about
> that.
>
>
>
> In regards to J1, each module on this layer has 2 shorted sectors. Which
> we see fairly clearly. However, there is a missing APV on the middle
> module. This was disabled because of connection problems that have since
> been better  understood. The top module has a partial or almost missing
> APV, this connection has since been remedied but needs to be checked. So
> this APV on the middle module is the last major thing that needs to be
> resolved for J1. There are some strips on the top and middle module that
> are partial and it needs to be understood if those are bad strips or
> partially disconnected APVs.
>
>
>
> So again the main result for this is the UV layer. But this is also a good
> starting place for J1. Also take note that the empty plots are simply
> because this plotting macro was not adjusted for 2 layers instead of 5.
>
>
>
> Best,
>
> Zeke
>
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