Reference

Schema

Property	Required	Type	Description
version	true	string	LatticeJSON version
title	false	string	The title of the lattice
info	false	string	Additional information about the lattice
energy	false	number	Energy of the particle beam in GeV
root	true	string	The root lattice
lattices	true	object	Definition of the lattice and sub-lattices
elements	true	object	Definition of the elements

Lattice

"lattice": [<object>, <object>,...]

"sublattices": {
  <name>: [<object>, <object>,...],
  <name>: [<object>, <object>,...],
  ...
}

Elements

Elements is a dictionary with element names as keys and their definition as value.

"elements": {
  <name>: [<type>, <attributes>],
  <name>: [<type>, <attributes>],
  ...
}

Drift

Attribute	Type	Description
info	string	Additional information about the element.
length	number	The length of the element.
dx	number	Horizontal misalignment
dy	number	Vertical misalignment
ds	number	Longitudinal misalignment
tilt	number	Rotation about the longitudinal axis

Dipole

Attribute	Type	Description
info	string	Additional information about the element.
length	number	The length of the element.
dx	number	Horizontal misalignment
dy	number	Vertical misalignment
ds	number	Longitudinal misalignment
tilt	number	Rotation about the longitudinal axis
angle	number	Deflection angle
radius	number	Radius of curvature
e1	number
e2	number
h1	number
h2	number
conversion_factor_ps_value	number

Quadrupole

Attribute	Type	Description
info	string	Additional information about the element.
length	number	The length of the element.
dx	number	Horizontal misalignment
dy	number	Vertical misalignment
ds	number	Longitudinal misalignment
tilt	number	Rotation about the longitudinal axis
k1	number	Geometric quadrupole strength
conversion_factor_ps_value	number

Sextupole

Attribute	Type	Description
info	string	Additional information about the element.
length	number	The length of the element.
dx	number	Horizontal misalignment
dy	number	Vertical misalignment
ds	number	Longitudinal misalignment
tilt	number	Rotation about the longitudinal axis
k2	number	Geometric sextupole strength
conversion_factor_ps_value	number

Octupole

Attribute	Type	Description
info	string	Additional information about the element.
length	number	The length of the element.
dx	number	Horizontal misalignment
dy	number	Vertical misalignment
ds	number	Longitudinal misalignment
tilt	number	Rotation about the longitudinal axis
k3	number	Geometric octupole strength
conversion_factor_ps_value	number