CONV - Convolution for responses to a finite diameter photon beam incident on multi-layered tissues

Lihong Wang, Steven L. Jacques, Liqiong Zheng

Research output: Contribution to journalArticlepeer-review

260 Scopus citations

Abstract

A convolution program (CONV) solving responses to a collimated finite diameter photon beam perpendicularly incident on a multi-layered tissue has been coded in ANSI Standard C, hence, the program can be executed or various computers. The program, employing an extended trapezoidal rule for integration, convolves the responses to an infinitely narrow photon beam computed by a companion program (MCML). Dynamic data allocation is used for CONV as well as MCML, therefore, the number of tissue layers and grid elements of the grid system can be varied at run time. The potential error due to not scoring the first photon-tissue interactions separately is illustrated. The program, including the source code, has been in the public domain since 1992 and can be downloaded from the web site at http://biomed.tamu.edu/approximately lw.

Original languageEnglish (US)
Pages (from-to)141-150
Number of pages10
JournalComputer Methods and Programs in Biomedicine
Volume54
Issue number3
DOIs
StatePublished - Nov 1997

Keywords

  • Convolution
  • Dynamic allocation
  • Photon transport
  • Standard C
  • Tissue optics

ASJC Scopus subject areas

  • Software
  • Computer Science Applications
  • Health Informatics

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