| | [No title] (Site not responding. Last check: 2007-10-22) |
 | | Coupling occurs when the beam's eigenplanes (the $x$- and $y$-axes relative to the betatron oscillation) do not match the $x$- and $y$-axes of the machine. |
 | | It is a reasonable assumption that the eigenplanes are close enough to the machine axes that the $x$-axis is strongly correlated with eigenplane 1 and the $y$-axis is strongly correlated with eigenplane 2. |
 | | This matrix changes the $x$ momenta proportionally to the $y$ position, and vice versa, effectively coupling the beam's eigenplanes to the machine's $x$- and $y$-axes. |
| www.stanford.edu /~flipt/files/SULI/FinalPaper.tex (3058 words) |