Parallel capable? : yes

Parameter Name | Units | Type | Default | Description |

L | double | 0.0 | length | |

K2 | double | 0.0 | geometric strength | |

TILT | double | 0.0 | rotation about longitudinal axis | |

BORE | double | 0.0 | bore radius | |

B | double | 0.0 | field at pole tip (used if bore nonzero) | |

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 | 4 | number of kicks | |

SYNCH_RAD | long | `0` |
include classical synchrotron radiation? | |

SYSTEMATIC_MULTIPOLES | STRING | NULL | input file for systematic multipoles | |

RANDOM_MULTIPOLES | STRING | NULL | input file for random multipoles | |

INTEGRATION_ORDER | long | 4 | integration order (2 or 4) | |

SQRT_ORDER | long | `0` |
Order of expansion of square-root in Hamiltonian. 0 means no expansion. | |

ISR | long | `0` |
include incoherent synchrotron radiation (scattering)? | |

ISR1PART | long | 1 | Include ISR for single-particle beam only if ISR=1 and ISR1PART=1 | |

GROUP | string | NULL | Optionally used to assign an element to a group, with a user-defined name. Group names will appear in the parameter output file in the column ElementGroup |

This element simulates a sextupole using a kick method based on
symplectic integration. The user specifies the number of kicks and
the order of the integration. For computation of twiss parameters,
chromaticities, and response matrices, this element is treated like a
standard thick-lens sextuupole; i.e., the number of kicks and the
integration order become irrelevant.

Specification of systematic and random multipole errors is supported
through the

`SYSTEMATIC_MULTIPOLES`

and
`RANDOM_MULTIPOLES`

fields. These fields give the names of SDDS files that supply the
multipole data. The files are expected to contain a single page of
data with the following elements:
- Floating point parameter
`referenceRadius`giving the reference radius for the multipole data. - 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. - Floating point columns
`an`and`bn`giving the values for the normal and skew multipole strengths, respectively. These are defined as a fraction of the main field strength measured at the reference radius, R: , where is the order of the main field and is the order of the error multipole. A similar relationship holds for the skew multipoles. For random multipoles, the values are interpreted as rms values for the distribution.

Apertures specified via an upstream `MAXAMP`

element or an `aperture_input`

command will be imposed inside this element, with the following rules/limitations:

- If apertures from both sources are present, the smallest is used.
- The apertures are assumed to be rectangular, even if the
`ELLIPTICAL`

qualifier is set for`MAXAMP`

.