Application of radiochromic gel dosimetry to commissioning of a megavoltage research linear accelerator for small-field animal irradiation studies.

Animals Film Dosimetry Particle Accelerators Radiation Dosimeters Radiometry Radiotherapy, High-Energy Reproducibility of Results
animal irradiator and small-field dosimetry commissioning gel dosimetry

Journal

Medical physics
ISSN: 2473-4209
Titre abrégé: Med Phys
Pays: United States
ID NLM: 0425746

Informations de publication

Date de publication:
Mar 2021
Historique:
revised: 25 11 2020
received: 01 05 2020
accepted: 17 12 2020
pubmed: 31 12 2020
medline: 15 5 2021
entrez: 30 12 2020
Statut: ppublish

Résumé

To develop and implement an efficient and accurate commissioning procedure for small-field static beam animal irradiation studies on an MV research linear accelerator (Linatron-M9) using radiochromic gel dosimetry. The research linear accelerator (Linatron-M9) is a 9 MV linac with a static fixed collimator opening of 5.08 cm diameter. Lead collimators were manually placed to create smaller fields of 2 × 2 cm Absolute dosimetry measurements were confirmed within 1.4% (k = 2, 95% confidence = 5%). The relative output factor of the small fields measured with films and gels agreed with a maximum relative percent error difference between the two methods of 1.1 % for the 1 × 1 cm This work provides a commissioning process to measure the beam characteristics of a fixed beam MV accelerator with detailed dosimetric evaluation for its implementation in megavoltage small animal irradiation studies. Radiochromic gel dosimeters are efficient small-field relative dosimetry tools providing 3D dose measurements allowing for full representation of dose, dosimeter misalignment corrections and high reproducibility with low inter-dosimeter variability. Overall, radiochromic gels are valuable for fast, full relative dosimetry commissioning in comparison to films for application in high-energy small-field animal irradiation studies.

Identifiants

DOI: 10.1002/mp.14685 PMID: 33378092 PMC: PMC8917956
pubmed: 33378092
doi: 10.1002/mp.14685
pmc: PMC8917956
mid: NIHMS1782192
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

1404-1416

Subventions

Organisme : NCI NIH HHS
ID : R37 CA222215
Pays : United States
Organisme : Hadramout Establishment for Human Development
Organisme : Academic Research Initiative
ID : 2016-DN-077-ARI106
Organisme : NIH HHS
ID : R37CA222215
Pays : United States

Informations de copyright

© 2020 American Association of Physicists in Medicine.

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Auteurs

Noora Ba Sunbul (N)

Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI, USA.
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.

Ibrahim Oraiqat (I)

Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.
H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA.

Benjamin Rosen (B)

Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.

Cameron Miller (C)

Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI, USA.

Christopher Meert (C)

Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI, USA.

Martha M Matuszak (MM)

Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI, USA.
Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.

Shaun Clarke (S)

Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI, USA.

Sara Pozzi (S)

Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI, USA.

Jean M Moran (JM)

Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.

Issam El Naqa (I)

Department of Radiation Oncology, University of Michigan, Ann Arbor, MI, USA.
H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, 33612, USA.

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Classifications MeSH

questionsmedicales.fr › Eucaryotes › Animaux › Application of radiochromic gel dosimetry to...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Hygiène radiologique › Contrôle des radiations › Dosimétrie photographique › Application of radiochromic gel dosimetry to...
questionsmedicales.fr › Équipement et fournitures › Équipement et fournitures pour les applications des radiations › Accélérateurs de particules › Application of radiochromic gel dosimetry to...
questionsmedicales.fr › Équipement et fournitures › Équipement et fournitures pour les applications des radiations › Dosimètres › Application of radiochromic gel dosimetry to...
questionsmedicales.fr › Techniques d'investigation › Radiométrie › Application of radiochromic gel dosimetry to...
questionsmedicales.fr › Thérapeutique › Radiothérapie › Radiothérapie de haute énergie › Application of radiochromic gel dosimetry to...
questionsmedicales.fr › Environnement et santé publique › Santé publique › Méthodes épidémiologiques › Méthodologie en recherche épidémiologique › Reproductibilité des résultats › Application of radiochromic gel dosimetry to...