source: PSPA/madxPSPA/doc/usrguide/Introduction/separator.html @ 430

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1<head>
2<title>ELSEPARATOR</title>
3<!-- Changed by: Chris ISELIN, 27-Jan-1997 -->
4<!-- Changed by: Hans Grote, 30-Sep-2002 -->
5<!-- Changed by: Frank Schmidt, 28-Aug-2003 -->
6</head>
7
8<body bgcolor="#ffffff">
9
10<center>
11EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH
12<IMG SRC="http://cern.ch/madx/icons/mx7_25.gif" align=right>
13<h2>ELSEPARATOR: Electrostatic Separator</h2>
14</center>
15
16<pre>
17label: ELSEPARATOR,L=real,EX=real,EY=real,TILT=real;
18</pre>
19An ELSEPARATOR (electrostatic separator) has four real
20attributes:
21<ul>
22<li>L:
23The length of the separator (default: 0 m).
24<li>EX:
25The horizontal electric field strength (default: 0 MV/m).
26A positive field increases <i>p<sub>x</sub></i> for positive particles.
27<li>EY:
28The vertical electric field strength (default: 0 MV/m).
29A positive field increases <i>p<sub>y</sub></i> for positive particles.
30<LI>TILT:
31The roll angle about the longitudinal axis (default: 0 rad). A
32positive angle represents a clockwise of the electrostatic separator.
33</ul>
34A separator requires the particle energy
35(<a href="beam.html#energy">ENERGY</a>)
36and the particle charge
37(<a href="beam.html#charge">CHARGE</a>)
38to be set by a <a href="beam.html">BEAM</a> command
39before any calculations are performed.
40<p>
41Example:
42<pre>
43BEAM,PARTICLE=POSITRON,ENERGY=50.0;
44SEP:    ELSEPARATOR,L=5.0,EY=0.5;
45</pre>
46The <a href="local_system.html#straight">straight reference system</a>
47for a separator is a cartesian coordinate system.
48
49<p>
50<address>
51<a href="http://www.cern.ch/Hans.Grote/hansg_sign.html">hansg</a>,
52<a href="http://www.cern.ch/Frank.Schmidt/frs_sign.html">frs</a>,
53August 28, 2003
54</address>
55
56</body>
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