Published March 1980
| Version v1
Journal article
Off-axis beam quality change in linear accelerator x-ray beams
Creators
- 1. Radiological Physics Center, The University of Texas System Center Center M. D. Anderson Hospital and Tumor Institute, Houston, Texas 77025
Description
The effective energy of the x-ray beam from linear accelerators changes as a function of the position in the beam due to nonuniform filtration by the flattening filter. In this work, the transmittance through a water column was measured in good geometry and the beam quality characterized in units of HVL in water. Measurements were made on a variety of linear accelerators from 4 to 10 MV. The beam energy decreased with increasing distance from the central ray for all accelerators measured
Additional details
Publishing Information
- Journal Title
- Med. Phys.
- Journal Volume
- 7
- Journal Issue
- 2
- Series
- Med. Phys.
- Journal Page Range
- 145-146
- ISSN
- 0094-2405
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11541597
- Subject category
- S43: PARTICLE ACCELERATORS; S07: ISOTOPES AND RADIATION SOURCES;
- Descriptors DEI
- BEAMS; COMPARATIVE EVALUATIONS; DATA; DOSIMETRY; FILTERS; INTERNAL IRRADIATION; LINEAR ACCELERATORS; MEASURING METHODS; RADIATION QUALITY; RADIOTHERAPY; SPATIAL DOSE DISTRIBUTIONS; X RADIATION
- Descriptors DEC
- ACCELERATORS; ELECTROMAGNETIC RADIATION; INFORMATION; IONIZING RADIATIONS; IRRADIATION; MEDICINE; RADIATION DOSE DISTRIBUTIONS; RADIATIONS; THERAPY