Changeset 753 in ETALON for papers/2016_HDR_ND/Compton/synchro_thomx.tex

Timestamp:

Dec 4, 2017, 12:10:19 AM (7 years ago)

Author:

delerue

Message:

HDR finished

File:

• papers/2016_HDR_ND/Compton/synchro_thomx.tex (modified) (2 diffs)

papers/2016_HDR_ND/Compton/synchro_thomx.tex

@@ -1 +1 @@
 \label{sec:ThomXsynchro}
 
-In ThomX the linac must be at a fixed frequency (the resonance frequency of the RF-gun; \SI{2998}{MHz}) whereas the ring frequency will have to be adjusted around \SI{500}{MHz} with temperature changes. To ensure that the electrons are accelerated in the gun and injected in the ring at the correct phase the trigger signal must be distributed at very specific moment when the phase of the two clocks are at a set coincidence as illustrated in figure~\ref{fig:heterodynes}.
+In ThomX the linac must be at a fixed frequency\footnote{When I joined the project, the team in charge of the RF gun did not want to take any risk with the gun and thus would not accept any frequency change, even to follow the ring. This position has been revised recently.} (the resonance frequency of the RF-gun; \SI{2998}{MHz}) whereas the ring frequency will have to be adjusted around \SI{500}{MHz} with temperature changes. To ensure that the electrons are accelerated in the gun and injected in the ring at the correct phase the trigger signal must be distributed at very specific moment when the phase of the two clocks are at a set coincidence as illustrated in figure~\ref{fig:heterodynes}.
 
 
@@ -12 +12 @@
 
 
-A similar problem has been encountered in the ESCULAP project (described in chapter~\ref{sec:ESCULAP}) where PHIL and Laserix have been designed independantly with their own clocks. When they operate together a common trigger must be found.
+A similar problem has been encountered in the ESCULAP project (described in chapter~\ref{sec:ESCULAP}) where PHIL and Laserix have been designed independently with their own clocks. When they operate together a common trigger must be found.