Star-tpc-l mailing list

["Fisyak, Yuri V" <fisyak AT bnl.gov>]

Dear Tim and Jim,

   From the photo I see only two RDO (as for old Tpc). For iTPC we have 4 RDO for inner sector.

Did you reuse old water manifold for iTPC ? Probably I have old drawings. I will check.

In this case did you attach RDO to two free sticks (2-nd and 4-th counting from beam pipe, with 1-st and  3-rd occupied in old TPC as show on photo) ?

What are two orange boxes showed around the stick #4 ? May be these are position for two additional 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: James H Thomas <jhthomas AT berkeley.edu>
Date: Tuesday, March 4, 2025 at 4:25 PM
To: Camarda, Timothy <tcamarda AT bnl.gov>
Cc: Videbaek, Flemming <videbaek AT bnl.gov>, Fisyak, Yuri V <fisyak 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

Dear Tim,

 

Just as a double check:  Two on each rung. How many RDO boards total per sector?

 

Cheers,
Jim

--

Jim Thomas

Email: jhthomas AT berkeley.edu

Phone:  USA  (510) 759-4936

Homepage: https://sites.google.com/berkeley.edu/jhthomas

 

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

 

 

On Tue, Mar 4, 2025 at 4:15 PM Camarda, Timothy <tcamarda AT bnl.gov> 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 [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$

--
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