Virtual Visitor Center at SLAC

EGS: Advanced Simulation Tool

This version of the simulation tool provides access to all modifiable parameters. The parameters available here and not on the basic simulation tool are indicated with the gray background color. If you experience difficulties with this form, please notify Ray Cowan (rfc@slac.stanford.edu).

Parameters	Value	Unit	Range	Default Value
Define the Initial Particle
Type				electron
Incident kinetic energy		MeV	.010 to 1000	100
Number of particles in beam			1 to 100	10
Incident particle vertical spread:	Off If On: Random in Y Uniform in Y			Off
Define y-axis spread ±		cm	0 to 100	5
Incident coordinates	x: y: z:	cm	-100 to 100	0
Define Target
Target medium				concrete
Target length		cm	0 to 100	20
Target radius		cm	0 to 100	10
Define the magnetic field strength and direction(s)
Horizontal, parallel to the beam		Tesla	-10 to 10	0
Horizontal, perpendicular to the beam		Tesla	-10 to 10	0
Vertical, perpendicular to the beam		Tesla	-10 to 10	0
Define the Image Display Characteristics
Calculate all electrons and positrons of an energy greater than		MeV	0.010 to 1000	0.010
Calculate all photons of energy greater than		Mev	0.001 to 1000	0.001
Display which types of particles?	Electrons (green) Photons (yellow) Positrons (red)			Display All
View shower from	Side End Top			Side
Determine random number seeds	Yes (set below) No (random)			Yes
If Yes,	IXX =		[1 to 31328]	1
	JXX =		[1 to 30081]	1
Annotate plot	On Off			On
Display size	width:	pixels	100 to 1000	500
	height:	pixels	100 to 1000	500
Width of tracks		pixels	0 to 20	1
Zoom factor			1 to 1000	2

Basic Simulation Tool