Ray-Tracing in Three Dimensions for Calculation of Radiation Dose Calculations.

Abstract

This thesis addresses several methods of calculating the radiation dose distribution for use by technicians or clinicians in radiation therapy treatment planning. It specifically covers the calculation of the effective pathlength of the radiation beam for use in beam models representing the dose distribution. A two-dimensional method by Bentley and Milan is compared to the method of Strip Trees developed by Duda and Hart and then a three-dimensional algorithm built to perform the calculations in three dimensions. The use of PRISMS conforms easily to the obtained CT Scans and provides a means of only doing two-dimensional ray-tracing while performing three-dimensional dose calculations. This method is already being applied and used in actual calculations. Keywords: Computer applications; Cancer research. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 27, 1986
Accession Number
ADA168179

Entities

People

  • Dennis R. Kennedy

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Computational Science
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Geometry
  • Graphics
  • Health Services
  • Medical Personnel
  • Neoplasms
  • Operating Systems
  • Radiation Dosage
  • Radiation Oncology
  • Radiology
  • Ray Tracing
  • Therapy
  • Three Dimensional
  • X-Ray Computed Tomography

Fields of Study

  • Medicine
  • Physics

Readers

  • Aerospace Test and Evaluation
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Wave Propagation and Nonlinear Chaotic Dynamics.