Zobrazeno 1 - 10
of 94
pro vyhledávání: '"John A. Micka"'
Publikováno v:
Medical Physics. 45:5564-5576
PURPOSE This work seeks to investigate new methods to determine the absorbed dose to water from kilovoltage x rays. Current methods are based on measurements in air and rely on correction factors in order to account for differences between the photon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75c5655b371833edce68e56495a9d7ef
https://doi.org/10.1002/mp.13213
https://doi.org/10.1002/mp.13213
Publikováno v:
Medical Physics. 44:311-320
Purpose To perform an in-air air-kerma strength (Sĸ) calibration of the Bebig model Ir2.A85-2 192Ir high-dose rate (HDR) brachytherapy source manufactured by Mallinckrodt Medical (Wester-duinweg, Germany) with the NIST-traceable seven-distance techn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::112ee4bb21b3c9832c37bfed31ba263b
https://doi.org/10.1002/mp.12017
https://doi.org/10.1002/mp.12017
Publikováno v:
Medical Physics. 43:2141-2152
Purpose: Microchambers demonstrate anomalous voltage-dependent polarity effects. Existing polarity and ion recombination correction factors do not account for these effects. As a result, many commercial microchamber models do not meet the specificati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8267e1c7257056e79df8603f2bec7ccc
https://doi.org/10.1118/1.4944872
https://doi.org/10.1118/1.4944872
Publikováno v:
Brachytherapy. 14:405-408
Purpose To propose a modification of the current dose calculation formalism introduced in the Task Group No. 43 Report (TG-43) to accommodate an air-kerma rate standard for electronic brachytherapy sources as an alternative to an air-kerma strength s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::884a38770ff5e8473b0f147157839852
https://doi.org/10.1016/j.brachy.2015.01.003
https://doi.org/10.1016/j.brachy.2015.01.003
Publikováno v:
Medical physics. 44(3)
We would like to thank Dr. Brivio et al. [Med. Phys.] for their comment on our recent paper. Miller et al. [Med. Phys. 43 (2016) 2141-2152] determined the primary cause of voltage-dependent polarity effects in microchambers to be a potential differen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::179cb35b2cf569e1b3a9021ed1535de9
https://pubmed.ncbi.nlm.nih.gov/28052335
https://pubmed.ncbi.nlm.nih.gov/28052335
Publikováno v:
Medical physics. 44(1)
To perform an in-air air-kerma strength (SK) calibration of the Bebig model Ir2.A85-2 192Ir high-dose rate (HDR) brachytherapy source manufactured by Mallinckrodt Medical (Westerduinweg, Germany) with the NIST-traceable seven-distance technique estab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::5da555d041100a30322f70ca56ecee0f
https://pubmed.ncbi.nlm.nih.gov/28102953
https://pubmed.ncbi.nlm.nih.gov/28102953
Publikováno v:
Medical physics. 44(2)
Purpose To investigate ion recombination and polarity effects in scanning and microionization chambers when used with digital electrometers and high-dose-rate linac beams such as flattening-filter-free (FFF) fields, and to compare results against con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::172224bc84d9c40ec6195874720abd4f
https://pubmed.ncbi.nlm.nih.gov/28001291
https://pubmed.ncbi.nlm.nih.gov/28001291
Publikováno v:
Medical physics. 43(5)
Microchambers demonstrate anomalous voltage-dependent polarity effects. Existing polarity and ion recombination correction factors do not account for these effects. As a result, many commercial microchamber models do not meet the specification of a r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::1672f2a2c2da436ef3803ee85fcb3422
https://pubmed.ncbi.nlm.nih.gov/27147326
https://pubmed.ncbi.nlm.nih.gov/27147326
Publikováno v:
Medical Physics. 38:6721-6729
Purpose: To perform a comparison of the interim air-kerma strength standard for high dose rate (HDR)192Ir brachytherapy sources maintained by the University of Wisconsin Accredited DosimetryCalibration Laboratory (UWADCL) with measurements of the var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d146a983411436cee567c4d40a2cceb
https://doi.org/10.1118/1.3656683
https://doi.org/10.1118/1.3656683
Publikováno v:
Medical Physics. 38:5771-5777
Purpose: Gafchromic® EBT2 film has a yellow marker dye incorporated into the active layer of the film that can be used to correct the film response for small variations in thickness. This work characterizes the effect of the marker-dye correction on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bde7df8732ec5af05479ec9d48b6968
https://doi.org/10.1118/1.3639997
https://doi.org/10.1118/1.3639997