impactx::diagnostics::MapTraceEntry Struct Reference

#include <LinearMap.H>

Public Attributes
amrex::ParticleReal	s
	integrated path length along the reference orbit, in meters
std::string	element_name
	user-supplied element name; empty if the element was not named
std::string	element_type
	element type string (e.g. "Drift", "Quad", "Sbend")
Map6x6	M_cumulative
	cumulative 6x6 linear transport map from the start up to the exit of this element

Detailed Description

One entry in a per-element trace of the cumulative linear transport map.

Each entry records the cumulative 6x6 linear transport map from the start of the traversal (where the map is the identity) up to the exit of one lattice element, along with a small amount of metadata describing that element. The entries in map_trace form a sequence parallel to the element list, with one extra leading entry for the starting position.

Phase-space ordering in M_cumulative is (x, px, y, py, t, pt), with x, y transverse positions (meters), px, py transverse canonical momenta normalized by the reference momentum, t arrival-time deviation relative to the reference (in meters of c*dt), and pt the momentum deviation relative to the reference (dimensionless).

Member Data Documentation

element_name

std::string impactx::diagnostics::MapTraceEntry::element_name

user-supplied element name; empty if the element was not named

element_type

std::string impactx::diagnostics::MapTraceEntry::element_type

element type string (e.g. "Drift", "Quad", "Sbend")

M_cumulative

Map6x6 impactx::diagnostics::MapTraceEntry::M_cumulative

cumulative 6x6 linear transport map from the start up to the exit of this element

s

amrex::ParticleReal impactx::diagnostics::MapTraceEntry::s

integrated path length along the reference orbit, in meters

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The documentation for this struct was generated from the following file:

• /home/docs/checkouts/readthedocs.org/user_builds/impactx/checkouts/1402/src/diagnostics/LinearMap.H