McXtrace - An X-ray ray-trace simulation package

[ Identification | Description | Input parameters | Links ]

The Absorption_sample Component

Sample component with absorbing materials.

Identification

• Site:
• Author: Erik B Knudsen
• Origin: Risoe
• Date: March 2011

Description

A sample component consisting of a volume of one material and volume of another
material inside. This is useful as a phantom for simulating tomography experiments.
The inner material can be left unset (all 0), to only have one volume.

Sample shape may be a cylinder, a sphere, a box or any other shape
box/plate:       xwidth x yheight x zdepth
cylinder:        radius x yheight
sphere:          radius (yheight=0)
any shape:       geometry=OFF/PLY file

Example: Absorption_sample( material_datafile_o="Mn.txt", xwidth_o = 0.5, yheight_o = 0.5, zdepth_o = 0.0001, rho_o=7.15 )

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
material_datafile_i	str	Name of file containing material data for inclusion.	""
material_datafile_o	str	Name of file containing material data for outer volume.	""
radius_o	m	Radius of "outer" enclosing material cylinder (0)	0
xwidth_o	m	Width of "outer" enclosing material box (yheight)	0
yheight_o	m	Height of "outer enclosing material box (1)	1
zdepth_o	m	Thickness of outer enclosing material box (yheight)	0
radius_i	m	Radius of "inner" enclosed material cylinder (0)	0
xwidth_i	m	Width of "inner" enclosed material box (yheight)	0
yheight_i	m	Height of "inner enclosed material (1)	0.0
zdepth_i	m	Thickness of inner enclosed material box (yheight)	0
x_i	m	Center x-coordinate of "inner" object	0
y_i	m	Center y-coordinate of "inner" object	0
z_i	m	Center z-coordinate of "inner" object	0
rho_i	g/cm^3	density of the enclosed material	0
rho_o	g/cm^3	density of the enclosing material	0
geometry_i	str	Name of an inner Object File Format (OFF) or PLY file for complex geometry. The OFF/PLY file may be generated from XYZ coordinates using qhull/powercrust [str]	""
geometry_o	str	Name of the outer Object File Format (OFF) or PLY file for complex geometry. The OFF/PLY file may be generated from XYZ coordinates using qhull/powercrust	""

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

Links

• Source code for Absorption_sample.comp.
• Meshlab https://www.meshlab.net/
• Geomview and Object File Format (OFF)
• Java version of Geomview (display only) jroff.jar
• qhull
• Powercrust https://www.cs.ucdavis.edu/~amenta/powercrust.html

---

[ Identification | Description | Input parameters | Links ]

Generated on mcxtrace 3.5.24

---

Last Modified: Sunday, 06-Apr-2025 20:25:04 CEST