| 2 |
|
|
| 3 |
|
TIB and TID are very compact objects with high readout granularity; |
| 4 |
|
channel and module densities are three to four times larger than in |
| 5 |
< |
the other SST subsystems as shown in Table~\ref{table:Density} where |
| 6 |
< |
the main parameters of the SST subsystems are |
| 7 |
< |
reported. |
| 5 |
> |
the other SST subsystems (Table~\ref{table:Density}). |
| 6 |
|
The TIB and TID layout has been designed keeping in mind their complexity: |
| 7 |
|
the mechanical structures have been simplified as much as possible, |
| 8 |
|
while the routing of the services (cooling, readout, controls) has been |
| 58 |
|
The cooling in the TIB/TID is distributed via aluminum pipe circuits |
| 59 |
|
that are bent into loops and soldered to inlet/outlet manifolds at |
| 60 |
|
the flange for the TIB, and at the ring outer edge for the TID. |
| 61 |
< |
The thermal connection between pipes and sensor modules is made with Aluminum ledges which are |
| 61 |
> |
The thermal connection between pipes and sensor modules is made with aluminum ledges which are |
| 62 |
|
precisely glued on the carbon fiber support structure and in good thermal contact with the pipes. |
| 63 |
|
On each ledge there are two threaded M1 holes onto which the modules are tightened. |
| 64 |
|
Precisely drilled slots, coaxial with the threaded holes, are the reference point where |
| 65 |
< |
insets are stick in providing mechanical reference for modules. An example for a TIB module |
| 65 |
> |
inserts are stick in providing mechanical reference for modules. An example for a TIB module |
| 66 |
|
is shown in Fig.~\ref{fig:module_cooling}). |
| 67 |
|
|
| 68 |
|
The TIB and TID substructures, 16 shells and 18 rings, are relatively |
| 70 |
|
Some other relevant specifications of the TIB and TID substructures are |
| 71 |
|
summarized in Table~\ref{table:layers}. |
| 72 |
|
A finished half of the TIB and a TID Disk are shown in |
| 73 |
< |
Fig.~\ref{fig:tibtid}. The pictures allow the sub-structures to be |
| 74 |
< |
recognized. |
| 73 |
> |
Fig.~\ref{fig:tib} and~\ref{fig:tid}. |
| 74 |
> |
%The pictures allow the sub-structures to be recognized. |
| 75 |
|
|
| 76 |
|
|
| 77 |
|
|
| 82 |
|
\hskip 1cm |
| 83 |
|
\includegraphics[width=0.45\textwidth]{Figs/TIB_barrel.png} |
| 84 |
|
\end{center} |
| 85 |
< |
\caption{A L3 TIB shell (left panel) and half of TIB assembled (right panel).} |
| 85 |
> |
\caption{A layer 3 TIB shell (left panel) and half of TIB assembled (right panel).} |
| 86 |
|
\label{fig:tib} % Give a unique label |
| 87 |
|
\end{figure} |
| 88 |
|
|
