sPHENIX discussion of software

[maya shimomura <mayapong AT gmail.com>]

Dear Chris and others, 

Last Tuesday at sPHENIX software and simulation meeting 
(https://indico.bnl.gov/event/21969/), INTT team was asked if the support 
structure of INTT is already in sPHENIX GEANT4 or not. 

The support structures for INTT have been already |eta| <1.1 in GEANT as 
Genki presented in the same meeting two years ago. 

Here is the indico and his presentation. 
https://indico.bnl.gov/event/10544/
https://indico.bnl.gov/event/10544/contributions/58083/attachments/38823/64219/20211214_Geant4_INTT.pdf

As you can see in the slide, support structures are in and the materials are 
carbon (CFRP).  

I confirmed the above and the following with Genki, who implemented these. 

- cooling water and cooling tube which are at |eta|>1.1 are not implemented. 
- the cylinder which has the same amount of the material as bus-extender has 
is implemented. 

Therefore, most of the material related to INTT in the sPHENIX acceptance 
(|eta| <1.1) is already implemented. 

Best regards, 

Maya on behalf of INTT