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Re: [Sphenix-tracking-l] INTT layer lengths needed to match TPC acceptance

From: Itaru Nakagawa <itaru AT bnl.gov>
To: sphenix-tracking-l AT lists.bnl.gov
Subject: Re: [Sphenix-tracking-l] INTT layer lengths needed to match TPC acceptance
Date: Thu, 8 Sep 2016 19:07:00 -0400

Hi Tony,

I also did a quick math and I got something similar length.

36cm, 41.4cm, 46.7cm, 52.1cm

These are almost factor of 2 longer than the present design.

I will check the number of channel counting.

-itaru

On 2016/09/08 17:17, Frawley, Anthony wrote:

Hi All,

I have posted some slides to (note, no actual meeting is planned for tomorrow, I will be traveling):

https://indico.bnl.gov/conferenceDisplay.py?confId=2374

showing my conclusions about the length of the INTT layers that are needed to match the acceptance of the TPC if we assume collisions in the collision Z vertex range of +/- 10 cm.

There are two files linked to the entry, one is a pdf containing my slides, the other is a pdf of Walt Sondheim's drawing showing the required active INTT layer lengths.

Please have a look - the results may surprise you. All comments are welcome.

Cheers

Tony

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[Sphenix-tracking-l] INTT layer lengths needed to match TPC acceptance, Frawley, Anthony, 09/08/2016
- Re: [Sphenix-tracking-l] INTT layer lengths needed to match TPC acceptance, Itaru Nakagawa, 09/08/2016