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Multipole kick element with coefficient input from an SDDS file.
Parameter Name |
Units |
Type |
Default |
Description |
L |
|
double |
0.0 |
length |
TILT |
|
double |
0.0 |
rotation about longitudinal axis |
DX |
|
double |
0.0 |
misalignment |
DY |
|
double |
0.0 |
misalignment |
DZ |
|
double |
0.0 |
misalignment |
FSE |
|
double |
0.0 |
fractional strength error |
N_KICKS |
|
long |
1 |
number of kicks |
SYNCH_RAD |
|
long |
0 |
include classical synchrotron radiation? |
FILENAME |
|
STRING |
NULL |
name of file containing multipole data |
SQRT_ORDER |
|
long |
0 |
Order of expansion of square-root in Hamiltonian. 0 means no expansion. |
This element simulates a multipole element using a 4th-order sympletic
integration.
Specification of the multipole strength is through an SDDS file.
The file is expected to contain a single page of
data with the following elements:
- An integer column named order giving the order of the multipole.
The order is defined as
, so a quadrupole has order 1, a
sextupole has order 2, and so on.
- A floating point column named KnL giving the integrated strength of
the multipole, , where is the order. The units are .
- A floating point column named JnL giving the integrated strength of
the skew multipole, , where is the order. The units are .
The MULT element is also available, which allows the same
functionality without an external file.
Next: FRFMODE
Up: Element Dictionary
Previous: FLOOR
Robert Soliday
2004-04-21