Monte Carlo dosimetric characterization of a new high dose rate
Geant4
IMBT
TG-186
TG-43
Yb-169
mPSD
shielded applicator
Journal
Medical physics
ISSN: 2473-4209
Titre abrégé: Med Phys
Pays: United States
ID NLM: 0425746
Informations de publication
Date de publication:
Sep 2020
Sep 2020
Historique:
received:
04
03
2020
revised:
02
06
2020
accepted:
08
06
2020
pubmed:
21
7
2020
medline:
15
5
2021
entrez:
21
7
2020
Statut:
ppublish
Résumé
A prototype The TG-43U1 dosimetric parameters were calculated for the source model using RapidBrachyMCTPS. Real-time dose rate measurements were performed in a water tank for both the bare/shielded source using a custom remote afterloader. For each dwell position, the dose rate was independently measured by the three scintillators (BCF-10, BCF-12, and BCF-60). For the bare source, dose rate was measured at distances up to 3 cm away from the source over a range of 7 cm along the catheter. For the shielded source, measurements were performed with the mPSD placed at 1 cm from the source at four different azimuthal angles ( The dosimetric parameters were tabulated for the source model. For the bare source, differences between measured and calculated along-away dose rates were generally below 5-10%. Along the transverse axis, deviations were, on average (range), 3.3% (0.6-6.2%) for BCF-10, 1.7% (0.9-2.9%) for BCF-12, and 2.2% (0.3-4.4%) for BCF-60. The maximum dose rate reduction due to shielding at a radial distance of 1 cm was 88.8 ± 1.2%, compared to 83.5 ± 0.5% as calculated by MC. The dose distribution for the bare/shielded
Substances chimiques
Plastics
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
4563-4573Subventions
Organisme : Natural Sciences and Engineering Research Council
ID : 241018
Organisme : Natural Sciences and Engineering Research Council
ID : 484144-15
Organisme : Natural Sciences and Engineering Research Council
ID : RGPIN-2019-05038
Organisme : Collaborative Health Research Projects
ID : 523394-18
Organisme : Canadian Foundation for Innovation (CFI) JR Evans Leader Funds
ID : 35633
Informations de copyright
© 2020 American Association of Physicists in Medicine.
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