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  • From: videbaek <videbaek AT bnl.gov>
  • To: "Camarda, Timothy" <tcamarda AT bnl.gov>
  • Cc: "Fisyak, Yuri V" <fisyak AT bnl.gov>, James H Thomas <jhthomas AT berkeley.edu>, Tonko Ljubicic <tonko.ljubicic AT gmail.com>, Star-tpc L <Star-tpc-l AT lists.bnl.gov>
  • Subject: Re: [[Star-tpc-l] ] new RDO in STAR iTPC geometry
  • Date: Tue, 04 Mar 2025 16:56:14 -0500

So Yuri

The itpc rdo's are smaller than the DAQ 1000 on the outer sectors
we should weigh one of the new RDO's and use as material something similar to what
was use in outer RDO (g10,+cu+si in some mixture maybe)

Flemming




On 2025-03-04 16:15, Camarda, Timothy wrote:
Yes, The readout boards are mounted to the water manifold.
I don't have the water manifold drawings but...

See attached photo from the test sector. The water manifold is
mounted above the strong-back (drawings Jim provided).

Where I note in orange there are 2x boards installed on the lowest
rung of the water manifold...then 2x more on the next rungs.

The boards are 23.5cm x 18.5cm.

Tim

-------------------------

From: videbaek <videbaek AT bnl.gov>
Sent: Tuesday, March 4, 2025 3:19 PM
To: Videbaek, Flemming <videbaek AT bnl.gov>
Cc: Fisyak, Yuri V <fisyak AT bnl.gov>; James H Thomas
<jhthomas AT berkeley.edu>; Camarda, Timothy <tcamarda AT bnl.gov>; Tonko
Ljubicic <tonko.ljubicic AT gmail.com>; Star-tpc L
<Star-tpc-l AT lists.bnl.gov>
Subject: Re: [[Star-tpc-l] ] new RDO in STAR iTPC geometry

Hi Yuri,

I believe the RDOs are mounted on the water manifolds. I tried to look

for some pictures , but they are not well organized.

best F.

On 2025-03-04 15:16, videbaek wrote:
On 2025-03-04 14:58, Fisyak, Yuri V wrote:
Dear Jason and Jim, thank you for the drawings.

One question: Can I assume that holes marked on the left side of
the
fist drawing (TPC350-E-1) as “2X”are set screw to support RDO
?

Yuri
Fisyak

STAR Phone: +1 631 344
3913
Brookhaven National Laboratory Fax: +1 631 344 4206
510A/1-161
http://www.star.bnl.gov/~fisyak E-mail: fisyak AT bnl.gov

From: star-tpc-l-request AT lists.bnl.gov
<star-tpc-l-request AT lists.bnl.gov> on behalf of James H Thomas
<star-tpc-l AT lists.bnl.gov>
Date: Tuesday, March 4, 2025 at 1:38 PM
To: Videbaek, Flemming <videbaek AT bnl.gov>, Camarda, Timothy
<tcamarda AT bnl.gov>
Cc: Tonko Ljubicic <tonko.ljubicic AT gmail.com>, Star-tpc L
<Star-tpc-l AT lists.bnl.gov>
Subject: Re: [[Star-tpc-l] ] new RDO in STAR iTPC geometry

Dear TPC Experts,

Enclosed is an up to date diagram for the iTPC sectors. The
comment
box in the upper right hand corner indicates that the drawing
includes
modifications for the Grid Leak Walls, and slots for the
electronics
shifted to their new positions.

P.S. Many thanks to Jason Farrell for creating this drawing for us.
He did an outstanding job on a very fast timescale.

Cheers,
Jim

--

Jim Thomas

Email: jhthomas AT berkeley.edu

Phone: USA (510) 759-4936

Homepage: https://sites.google.com/berkeley.edu/jhthomas [1] [2]

Please don't feel obligated to respond to this message outside of
your
normal working hours.

On Mon, Mar 3, 2025 at 10:06 PM videbaek <videbaek AT bnl.gov>
wrote:

Hi Yuri,

We should include Jim and Tim in these discussion. Tim has RDO
boards in
the lab and we can check weights and sizes, and the teststand can
probably be used to see how the RDOs are positioned.
THE FFE are not exactly at the same position as the OLD but
shifted
by a
small amount (includes the holes for the FFEEs)

best Flemming

On 2025-03-03 09:51, Fisyak, Yuri V wrote:
Hello Tonko, during yesterday ETOF meeting, it was a question
about
the material budget before ETOF.

I have found that we have old description of geometry in GEANT
for
the
electronics readout , done in 2005 mainly for ECAL.

This description has not been updated with iTPC.

The question is : Do you have any drawings for the iTPC
electronics
assembly ?

I believe the main difference is adding 2 more RDOs.

For ETOF it is necessary to update this geometry.

Yuri
Fisyak

STAR Phone: +1 631 344
3913
Brookhaven National Laboratory Fax: +1 631 344 4206
510A/1-161
http://www.star.bnl.gov/~fisyak E-mail: fisyak AT bnl.gov

--
Flemming Videbaek
senior scientist, emeritus
videbaek @ bnl.gov [1]
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell : 631-681-1596


Links:
------
[1] http://bnl.gov
[2]

https://urldefense.com/v3/__https:/sites.google.com/berkeley.edu/jhthomas__;!!P4SdNyxKAPE!FWr1OsoIXcmgOndbWiEZs-ynNazlPVMkt2_J5dcGcJ3wtnhti6MipTia8tE-bamcf1hU5Kn6ORoLWcZQAzGaKbvpQO32sA$
[2]

--
Flemming Videbaek
senior scientist, emeritus
videbaek @ bnl.gov
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell : 631-681-1596


Links:
------
[1] https://sites.google.com/berkeley.edu/jhthomas
[2] https://urldefense.com/v3/__https:/sites.google.com/berkeley.edu/jhthomas__;!!P4SdNyxKAPE!FWr1OsoIXcmgOndbWiEZs-ynNazlPVMkt2_J5dcGcJ3wtnhti6MipTia8tE-bamcf1hU5Kn6ORoLWcZQAzGaKbvpQO32sA$

--
Flemming Videbaek
senior scientist, emeritus
videbaek @ bnl.gov
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell : 631-681-1596



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