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Air‐kerma strength determination of a high dose rate brachytherapy source
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| Zeitschriftentitel: | Medical Physics |
|---|---|
| Personen und Körperschaften: | , , , |
| In: | Medical Physics, 35, 2008, 9, S. 3935-3942 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
VanDamme, J. J. Culberson, W. S. DeWerd, L. A. Micka, J. A. VanDamme, J. J. Culberson, W. S. DeWerd, L. A. Micka, J. A. |
|---|---|
| author |
VanDamme, J. J. Culberson, W. S. DeWerd, L. A. Micka, J. A. |
| spellingShingle |
VanDamme, J. J. Culberson, W. S. DeWerd, L. A. Micka, J. A. Medical Physics Air‐kerma strength determination of a high dose rate brachytherapy source General Medicine |
| author_sort |
vandamme, j. j. |
| spelling |
VanDamme, J. J. Culberson, W. S. DeWerd, L. A. Micka, J. A. 0094-2405 2473-4209 Wiley General Medicine http://dx.doi.org/10.1118/1.2964094 <jats:p>The increased demand for high dose rate (HDR) brachytherapy as an alternative to external beam radiotherapy has led to the introduction of a HDR brachytherapy isotope <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0002.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0002" />. This source offers a dose rate similar to <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0003.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0003" /> HDR sources, at about one fourth the effective photon energy. This work presents the calibration of this source in terms of air‐kerma strength, based on an adaptation of the current, National Institute of Standards and Technology traceable, in air measurement technique currently used for <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0004.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0004" /> HDR sources. Several additional measurement correction factors were required, including corrections for air scatter, air attenuation, and ion recombination. A new method is introduced for determining the ion chamber calibration coefficient <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0005.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0005" />. An uncertainty analysis was also performed, indicating an overall measurement expanded uncertainty in the air‐kerma strength <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0006.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0006" /> of 2.2%.</jats:p> Air‐kerma strength determination of a high dose rate brachytherapy source Medical Physics |
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| title |
Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_unstemmed |
Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_full |
Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_fullStr |
Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_full_unstemmed |
Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_short |
Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_sort |
air‐kerma strength determination of a high dose rate brachytherapy source |
| topic |
General Medicine |
| url |
http://dx.doi.org/10.1118/1.2964094 |
| publishDate |
2008 |
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3935-3942 |
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<jats:p>The increased demand for high dose rate (HDR) brachytherapy as an alternative to external beam radiotherapy has led to the introduction of a HDR brachytherapy isotope <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0002.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0002" />. This source offers a dose rate similar to <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0003.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0003" /> HDR sources, at about one fourth the effective photon energy. This work presents the calibration of this source in terms of air‐kerma strength, based on an adaptation of the current, National Institute of Standards and Technology traceable, in air measurement technique currently used for <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0004.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0004" /> HDR sources. Several additional measurement correction factors were required, including corrections for air scatter, air attenuation, and ion recombination. A new method is introduced for determining the ion chamber calibration coefficient <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0005.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0005" />. An uncertainty analysis was also performed, indicating an overall measurement expanded uncertainty in the air‐kerma strength <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0006.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0006" /> of 2.2%.</jats:p> |
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| author | VanDamme, J. J., Culberson, W. S., DeWerd, L. A., Micka, J. A. |
| author_facet | VanDamme, J. J., Culberson, W. S., DeWerd, L. A., Micka, J. A., VanDamme, J. J., Culberson, W. S., DeWerd, L. A., Micka, J. A. |
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| description | <jats:p>The increased demand for high dose rate (HDR) brachytherapy as an alternative to external beam radiotherapy has led to the introduction of a HDR brachytherapy isotope <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0002.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0002" />. This source offers a dose rate similar to <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0003.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0003" /> HDR sources, at about one fourth the effective photon energy. This work presents the calibration of this source in terms of air‐kerma strength, based on an adaptation of the current, National Institute of Standards and Technology traceable, in air measurement technique currently used for <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0004.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0004" /> HDR sources. Several additional measurement correction factors were required, including corrections for air scatter, air attenuation, and ion recombination. A new method is introduced for determining the ion chamber calibration coefficient <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0005.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0005" />. An uncertainty analysis was also performed, indicating an overall measurement expanded uncertainty in the air‐kerma strength <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0006.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0006" /> of 2.2%.</jats:p> |
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| spelling | VanDamme, J. J. Culberson, W. S. DeWerd, L. A. Micka, J. A. 0094-2405 2473-4209 Wiley General Medicine http://dx.doi.org/10.1118/1.2964094 <jats:p>The increased demand for high dose rate (HDR) brachytherapy as an alternative to external beam radiotherapy has led to the introduction of a HDR brachytherapy isotope <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0002.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0002" />. This source offers a dose rate similar to <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0003.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0003" /> HDR sources, at about one fourth the effective photon energy. This work presents the calibration of this source in terms of air‐kerma strength, based on an adaptation of the current, National Institute of Standards and Technology traceable, in air measurement technique currently used for <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0004.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0004" /> HDR sources. Several additional measurement correction factors were required, including corrections for air scatter, air attenuation, and ion recombination. A new method is introduced for determining the ion chamber calibration coefficient <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0005.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0005" />. An uncertainty analysis was also performed, indicating an overall measurement expanded uncertainty in the air‐kerma strength <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/mp4094-math-0006.png" xlink:title="urn:x-wiley:00942405:media:mp4094:mp4094-math-0006" /> of 2.2%.</jats:p> Air‐kerma strength determination of a high dose rate brachytherapy source Medical Physics |
| spellingShingle | VanDamme, J. J., Culberson, W. S., DeWerd, L. A., Micka, J. A., Medical Physics, Air‐kerma strength determination of a high dose rate brachytherapy source, General Medicine |
| title | Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_full | Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_fullStr | Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_full_unstemmed | Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_short | Air‐kerma strength determination of a high dose rate brachytherapy source |
| title_sort | air‐kerma strength determination of a high dose rate brachytherapy source |
| title_unstemmed | Air‐kerma strength determination of a high dose rate brachytherapy source |
| topic | General Medicine |
| url | http://dx.doi.org/10.1118/1.2964094 |