The `Undulator` Component

Site:
Author: Erik B. Knudsen
Origin: DTU Physics
Date: May, 2013.

Model of an undulator source

Identification

A undulator source model based on the derivation by K.J. Kim, AIP, conf. proc., 184, 1989. doi:10.1063/1.38046.

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
verbose		if nonzero, output extra information.	0
E0	keV	Center of emitted energy spectrum (overrides lambda0).	0
dE	keV	Half-width of emitted energy spectrum.	0
phase		Initial phase of radiation.	0
randomphase		If !=0 phase will be random (I.e. the emitted radiation is completely incoherent).	1
Ee	GeV	Storage ring electron energy [typically a few GeV).	2.4
dEe		Relative electron energy beam spread (sigma/Ee).	0
Ie	A	Ring current.	0.4
tbunch	s	Bunch length. 0 means continous source.	0
t0	s	Delay of the first bunch from t=0.	0
B	T	Peak magnet field strength. Overrides K.	0
K		Dimensionless undulator parameter.	0
gap	m	Undulator gap. If > gap_min the actual magnetic field strength is < B. Currently ignored.	1e-3
Nper		Number of magnetic periods in the undulator.	1
lu	m	Magnetic period length of the undulator.	16e-3
sigey	m	Electron ring beam size in vertical plane (rms).	0
sigex	m	Electron ring beam size in horizontal plane (rms).	0
sigepx	rad	Electron ring beam horizontal divergence (rms).	0
sigepy	rad	Electron ring beam vertical divergence (rms).	0
focus_xw	m	Width of target window.	0
focus_yh	m	Height of target window.	0
dist	m	Distance from source plane to target window along the optical axis.	1
quick_integ		if nonzero, use faster (but less accurate) integration scheme.	0
E1st	keV	Energy of the fundmental (1st) undulator harmonic.	0

AT (	,	,		) RELATIVE
ROTATED (	,	,		) RELATIVE