TIBTIDNotes/TIBTIDIntNote/GroundingScheme.tex

\section{Grounding Scheme}
\label{sec:Grounding}
The grounding scheme followed during the TIB integration is scketched in Fig. \ref{fig:grounding},
for an more complete description see~\cite{ref:grounding}.
The high and low voltage return lines of each string 
are joined together at the mother cable head, then this
point is connect to a gold plated copper sheet (called \it{corona}) fixed to the 
shell front flange. This sheet has been introduced to have a better quality soldering connections 
with respect to the aluminum cooling manifolds but it is equipotential to them. \\
Other important ground connections are at the single module level. On the front-end hybrids
of all the single sided modules and on the R-Phi double sided ones, a small
gold plated copper pin (called "cometa") is soldered on the low voltage common return, 
at the filtering capacitor level, and
it is forced in contact with the module carbon fiber frame. In such a way the module frame is 
properly grounded resulting in a flat strip noise profile.
Furthermore a connection has been done between the front-end hybrid return of end-flange side 
module and the cooling pipe close to it.\\
The DOHM return and its shielding have been also connected to the \it{corona}. The DOHM
return is also in contact with the mother cable return via the control cable ground lines.

%\begin{figure}
%\begin{center}
%  \includegraphics[width=0.85\textwidth]{Figs/grounding.pdf}
%\end{center}
%\caption{Scheme of the TIB shell grounding.}
%\label{fig:grounding}
%\end{figure}


\begin{figure}
\begin{center}
  \includegraphics[width=0.85\textwidth]{Figs/grounding2.pdf}
\end{center}
\caption{Scheme of the TIB shell grounding.}
\label{fig:grounding}
\end{figure}
Revision:	1.3
Committed:	Mon Apr 27 14:27:03 2009 UTC (16 years ago) by carlo
Content type:	application/x-tex
Branch:	MAIN
Changes since 1.2:	+6 -6 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	sguazz	1.1	\section{Grounding Scheme}
2			\label{sec:Grounding}
3			The grounding scheme followed during the TIB integration is scketched in Fig. \ref{fig:grounding},
4			for an more complete description see~\cite{ref:grounding}.
5	carlo	1.3	The high and low voltage return lines of each string
6			are joined together at the mother cable head, then this
7			point is connect to a gold plated copper sheet (called \it{corona}) fixed to the
8	sguazz	1.1	shell front flange. This sheet has been introduced to have a better quality soldering connections
9	carlo	1.3	with respect to the aluminum cooling manifolds but it is equipotential to them. \\
10	sguazz	1.1	Other important ground connections are at the single module level. On the front-end hybrids
11			of all the single sided modules and on the R-Phi double sided ones, a small
12			gold plated copper pin (called "cometa") is soldered on the low voltage common return,
13			at the filtering capacitor level, and
14			it is forced in contact with the module carbon fiber frame. In such a way the module frame is
15	carlo	1.3	properly grounded resulting in a flat strip noise profile.
16	sguazz	1.1	Furthermore a connection has been done between the front-end hybrid return of end-flange side
17			module and the cooling pipe close to it.\\
18	carlo	1.3	The DOHM return and its shielding have been also connected to the \it{corona}. The DOHM
19	sguazz	1.1	return is also in contact with the mother cable return via the control cable ground lines.
20
21	lino	1.2	%\begin{figure}
22			%\begin{center}
23			% \includegraphics[width=0.85\textwidth]{Figs/grounding.pdf}
24			%\end{center}
25			%\caption{Scheme of the TIB shell grounding.}
26			%\label{fig:grounding}
27			%\end{figure}
28	sguazz	1.1
29
30			\begin{figure}
31			\begin{center}
32			\includegraphics[width=0.85\textwidth]{Figs/grounding2.pdf}
33			\end{center}
34			\caption{Scheme of the TIB shell grounding.}
35			\label{fig:grounding}
36			\end{figure}