... | ... | @@ -1702,7 +1702,7 @@ label:RFCAVITY, APERTURE=real-vector, L=real, |
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L::
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The length of the cavity (default: 0 m)
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VOLT::
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The peak RF voltage (default: 0 MV/m). The effect of the cavity is
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The peak RF voltage [MV/m] (default: 0). The effect of the cavity is
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latexmath:[\delta E=\mathrm{VOLT}\cdot\sin(2\pi(\mathrm{LAG}-\mathrm{HARMON}\cdot f_0 t))].
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LAG::
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The phase lag [rad] (default: 0). In _OPAL-t_ this phase is in general
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... | ... | @@ -1916,7 +1916,7 @@ SOFT_RF_CAVITY: VARIABLE_RF_CAVITY_FRINGE_FIELD, |
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----
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[[sec.elements.pillbox]]
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=== Pillbox RF Cavity
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=== Pillbox RF Cavity (_OPAL-T_ only)
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The `PILLBOX` command provides an analytical model for a cylindrical RF cavity. Fringe fields aren't supported yet. Both TM~mnp~ and TE~mnp~ modes for latexmath:[m \ge 0], latexmath:[n \ge 1] and latexmath:[p \ge 0] \(TM) and latexmath:[p \ge 1] (TE) are supported. The computed field for TM~mnp~ is
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.TM field of pillbox
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... | ... | @@ -2066,6 +2066,10 @@ LAG:: |
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energy. This phase is determined using an auto-phasing algorithm
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(see Appendix link:autophase#appendix.autophasing[Auto-phasing Algorithm]). This auto-phasing algorithm can be
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switched off, see `APVETO`.
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DLAG::
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The phase lag error [rad] (default: 0). This error isn't applied to
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the reference particle only to particles of the bunch. It is used to
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model imperfections of the machine and trajectory corrections.
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FMAPFN::
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Field maps in the _T7_ format can be specified.
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FREQ::
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... | ... | @@ -2106,7 +2110,7 @@ lrf0: TravelingWave, L=0.0253, VOLT=14.750, |
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----
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[[sec.elements.slactds]]
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=== SLACs Transverse Deflectinc Structure
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=== SLACs Transverse Deflectinc Structure (_OPAL-T_ only)
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A `SLACTDS` element deflects the particles in horizontal direction. It's field is computed
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using
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... | ... | @@ -2114,12 +2118,12 @@ using |
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[latexmath]
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++++
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\begin{aligned}
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E_r &=& E_0 (\frac{k r}{2}^2 + \frac{k a}{2}^2) \cos(\varphi) \\
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E_\varphi &=& E_0 (\frac{k r}{2}^2 - \frac{k a}{2}^2) \sin(\varphi) \\
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E_z &=& \dot{\iota} E_0 k r \cos(\varphi) \\
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B_r &=& -\frac{E_0}{c} (\frac{k r}{2}^2 - \frac{k a}{2}^2 + 1) \sin(\varphi) \\
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B_\varphi &=& \frac{E_0}{c} (\frac{k r}{2}^2 + \frac{k a}{2}^2 - 1) \cos(\varphi) \\
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B_z &=& -\dot{\iota} \frac{E_0}{c} k r \sin(\varphi)
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E_r &= E_0 (\frac{k r}{2}^2 + \frac{k a}{2}^2) \cos(\varphi) \\
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E_\varphi &= E_0 (\frac{k r}{2}^2 - \frac{k a}{2}^2) \sin(\varphi) \\
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E_z &= \dot{\iota} E_0 k r \cos(\varphi) \\
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B_r &= -\frac{E_0}{c} (\frac{k r}{2}^2 - \frac{k a}{2}^2 + 1) \sin(\varphi) \\
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B_\varphi &= \frac{E_0}{c} (\frac{k r}{2}^2 + \frac{k a}{2}^2 - 1) \cos(\varphi) \\
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B_z &= -\dot{\iota} \frac{E_0}{c} k r \sin(\varphi)
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\end{aligned}
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++++
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... | ... | @@ -2136,6 +2140,18 @@ label:SLACTDS, NUMCELLS=real, LAG=real, DLAG=real, VOLT=real, DVOLT=real; |
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NUMCELLS::
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The number of cells of the RF structure.
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VOLT::
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The peak RF voltage [MV/m] (default: 0)
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DVOLT::
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The RF voltage error [MV/m] (default: 0). This error isn't applied to
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the reference particle only to particles of the bunch. It is used to
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model imperfections of the machine and trajectory corrections.
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LAG::
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The phase lag [rad] (default: 0).
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DLAG::
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The phase lag error [rad] (default: 0). This error isn't applied to
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the reference particle only to particles of the bunch. It is used to
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model imperfections of the machine and trajectory corrections.
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[[sec.elements.monitor]]
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