McXtrace logo

McXtrace - An X-ray ray-trace simulation package

ESRF; SAXSLAB Niels Bohr Institute DTU Physics

McXtrace

Project Status
 Project Partners
 Project People
 Goal

Installation
 Mac OSX Installation
 Windows Installation

Mailing List

Links

Publications

Minutes of Meetings

McXtrace Art

About McXtrace

Documentation
 Commands
 Tutorial

Download
 Components

Search


McXtrace: Source_pt Component

[ Identification | Description | Input parameters | Output parameters | Links ]

The Source_pt Component

Identification

  • Author:(Unknown)
  • Origin:(Unknown)
  • Date:(Unknown)
  • Version:(Unknown)

Description

A simple source model emitting photons from a point source uniformly into 4pi. A square target centered
on the Z-axis restricts the beam to that aperture.
If an input spectrum datafile (spectrum_file) is not specified, the beam is restricted to emit photons between E0+-dE keV, or lambda0+-dlambda Å, whichever is given.
The input spectrum file should be formatted such that x-ray energy/wavelength is in the first column and the intensity in the second. Any preceding
lines starting with # are considered part of the file header. If a datafile is given, a nonzero E¤0 value indicates that is is parametrized by energy ( in keV)
as opposed to wavelength (in Å). Wavelength is the default. 
Flux is given in the unit photons/s

Example: Source_pt(dist=1,focus_xw=0.1,focus_yh=0.1, lamda=0.231, dlambda=0.002)


Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
spectrum_file NULL
focus_xw m Width of target 0
focus_yh m Height of target 0
flux 0
dist 1
gamma 0
E0 keV Mean energy of xrays. 0
dE keV Energy half spread of x-rays. 0
lambda0 AA Mean wavelength of x-rays. 0
dlambda AA Wavelength half spread of x-rays (flat or gaussian sigma). 0
phase -1
randomphase 0
gauss 1 Gaussian (1) or Flat (0) energy/wavelength distribution 0

Output parameters

Name Unit Description Default
prms  

Links


[ Identification | Description | Input parameters | Output parameters | Links ]

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Thu Oct 5 12:58:36 2017


Last Modified: Thursday, 05-Oct-2017 14:58:36 CEST
Search website mailinglist archive SVN repos McCode Trac