Validation of a new virtual wedge model

G. E. Desobry, T. J. Waldron, I. J. Das

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Results of a validation study of a commercial virtual wedge device recently installed at our institution are presented. The wedge simulation produces an energy fluence from the treatment head that is equivalent to the primary energy fluence attenuated through a wedge-shaped slab of water with the central axis fluence set to unity. A simple exponential formula used to compute off-axis wedge factors is compared to beam profiles measured in a water phantom. A fast Fourier transform (FFT) convolution dose calculation is compared to measured dose profiles. Measured and calculated central axis wedged/open field ratios as a function of depth are also compared.

Original languageEnglish (US)
Pages (from-to)71-72
Number of pages2
JournalMedical Physics
Volume25
Issue number1
DOIs
StatePublished - Jan 1998
Externally publishedYes

Fingerprint

Water
Validation Studies
Fourier Analysis
Head
Equipment and Supplies

Keywords

  • Dynamic wedge
  • Virtual wedge

ASJC Scopus subject areas

  • Biophysics

Cite this

Desobry, G. E., Waldron, T. J., & Das, I. J. (1998). Validation of a new virtual wedge model. Medical Physics, 25(1), 71-72. https://doi.org/10.1118/1.598172

Validation of a new virtual wedge model. / Desobry, G. E.; Waldron, T. J.; Das, I. J.

In: Medical Physics, Vol. 25, No. 1, 01.1998, p. 71-72.

Research output: Contribution to journalArticle

Desobry, GE, Waldron, TJ & Das, IJ 1998, 'Validation of a new virtual wedge model', Medical Physics, vol. 25, no. 1, pp. 71-72. https://doi.org/10.1118/1.598172
Desobry GE, Waldron TJ, Das IJ. Validation of a new virtual wedge model. Medical Physics. 1998 Jan;25(1):71-72. https://doi.org/10.1118/1.598172
Desobry, G. E. ; Waldron, T. J. ; Das, I. J. / Validation of a new virtual wedge model. In: Medical Physics. 1998 ; Vol. 25, No. 1. pp. 71-72.
@article{7cdd9dc4e7af4b85a05e1cf3a1bd1da4,
title = "Validation of a new virtual wedge model",
abstract = "Results of a validation study of a commercial virtual wedge device recently installed at our institution are presented. The wedge simulation produces an energy fluence from the treatment head that is equivalent to the primary energy fluence attenuated through a wedge-shaped slab of water with the central axis fluence set to unity. A simple exponential formula used to compute off-axis wedge factors is compared to beam profiles measured in a water phantom. A fast Fourier transform (FFT) convolution dose calculation is compared to measured dose profiles. Measured and calculated central axis wedged/open field ratios as a function of depth are also compared.",
keywords = "Dynamic wedge, Virtual wedge",
author = "Desobry, {G. E.} and Waldron, {T. J.} and Das, {I. J.}",
year = "1998",
month = "1",
doi = "10.1118/1.598172",
language = "English (US)",
volume = "25",
pages = "71--72",
journal = "Medical Physics",
issn = "0094-2405",
publisher = "AAPM - American Association of Physicists in Medicine",
number = "1",

}

TY - JOUR

T1 - Validation of a new virtual wedge model

AU - Desobry, G. E.

AU - Waldron, T. J.

AU - Das, I. J.

PY - 1998/1

Y1 - 1998/1

N2 - Results of a validation study of a commercial virtual wedge device recently installed at our institution are presented. The wedge simulation produces an energy fluence from the treatment head that is equivalent to the primary energy fluence attenuated through a wedge-shaped slab of water with the central axis fluence set to unity. A simple exponential formula used to compute off-axis wedge factors is compared to beam profiles measured in a water phantom. A fast Fourier transform (FFT) convolution dose calculation is compared to measured dose profiles. Measured and calculated central axis wedged/open field ratios as a function of depth are also compared.

AB - Results of a validation study of a commercial virtual wedge device recently installed at our institution are presented. The wedge simulation produces an energy fluence from the treatment head that is equivalent to the primary energy fluence attenuated through a wedge-shaped slab of water with the central axis fluence set to unity. A simple exponential formula used to compute off-axis wedge factors is compared to beam profiles measured in a water phantom. A fast Fourier transform (FFT) convolution dose calculation is compared to measured dose profiles. Measured and calculated central axis wedged/open field ratios as a function of depth are also compared.

KW - Dynamic wedge

KW - Virtual wedge

UR - http://www.scopus.com/inward/record.url?scp=0031882795&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031882795&partnerID=8YFLogxK

U2 - 10.1118/1.598172

DO - 10.1118/1.598172

M3 - Article

C2 - 9472828

AN - SCOPUS:0031882795

VL - 25

SP - 71

EP - 72

JO - Medical Physics

JF - Medical Physics

SN - 0094-2405

IS - 1

ER -