[430] | 1 | <html> |
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| 2 | <head> |
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| 3 | <title>SOLENOID</title> |
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| 4 | <!-- Changed by: Chris ISELIN, 27-Jan-1997 --> |
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| 5 | <!-- Changed by: Hans Grote, 30-Sep-2002 --> |
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| 6 | <!-- Changed by: Alexander Koschik, 16-May-2006 --> |
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| 7 | </head> |
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| 8 | |
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| 9 | <body bgcolor="#ffffff"> |
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| 10 | |
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| 11 | <center> |
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| 12 | EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH |
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| 13 | <IMG SRC="http://cern.ch/madx/icons/mx7_25.gif" align=right> |
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| 14 | <h2>Solenoid</h2> |
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| 15 | </center> |
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| 16 | |
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| 17 | <p> |
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| 18 | <tt>label: SOLENOID, L=real, KS=real; </tt> (<b>thick</b> version) <br /> |
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| 19 | <tt>label: SOLENOID, L=0, KS=real, KSI=real; </tt> (<b>thin</b> version) |
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| 20 | </p> |
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| 21 | |
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| 22 | <p> |
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| 23 | A SOLENOID has two (three) real attributes: |
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| 24 | <ul> |
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| 25 | <li>L: |
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| 26 | The length of the solenoid (default: 0 m) |
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| 27 | <li>KS: |
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| 28 | The solenoid strength <i>K<sub>s</sub></i> (default: 0 rad/m). |
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| 29 | For positive KS and positive particle charge, |
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| 30 | the solenoid field points in the direction of increasing <i>s</i>. |
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| 31 | <li>KSI: |
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| 32 | The solenoid integrated strength <i>K<sub>s</sub>*L</i> (default: 0 rad). |
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| 33 | This additional attribute is needed only when using the <emph>thin</emph> solenoid, |
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| 34 | where <i>L=0</i>! |
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| 35 | <li><font color=ff0000><i> KNL & KSL: |
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| 36 | Take note that one can specify multipole coefficients but they have no |
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| 37 | effect in MAD-X proper but are used for solenoids with multipoles in |
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| 38 | PTC.</i></font> |
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| 39 | </ul> |
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| 40 | </p> |
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| 41 | |
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| 42 | <p> |
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| 43 | Example: |
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| 44 | <pre> |
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| 45 | SOLO: SOLENOID, L=2., KS=0.001; |
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| 46 | THINSOLO: SOLENOID, L=0, KS=0.001, KSI=0.002; |
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| 47 | </pre> |
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| 48 | </p> |
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| 49 | |
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| 50 | <p> |
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| 51 | The <a href="local_system.html#straight">straight reference system</a> |
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| 52 | for a solenoid is a cartesian coordinate system. |
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| 53 | </p> |
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| 54 | |
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| 55 | <p> |
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| 56 | <address> |
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| 57 | <a href="http://www.cern.ch/Hans.Grote/hansg_sign.html">hansg</a>, |
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| 58 | January 27, 1977 |
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| 59 | </address> |
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| 60 | </p> |
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| 61 | |
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| 62 | </body> |
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| 63 | </html> |
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