Calibration strategies for use of the nanoDot OSLD in CT applications.
CT
OSLD
calibration
dosimetry
Journal
Journal of applied clinical medical physics
ISSN: 1526-9914
Titre abrégé: J Appl Clin Med Phys
Pays: United States
ID NLM: 101089176
Informations de publication
Date de publication:
Jan 2019
Jan 2019
Historique:
received:
15
02
2018
revised:
26
09
2018
accepted:
06
10
2018
pubmed:
15
11
2018
medline:
18
5
2019
entrez:
15
11
2018
Statut:
ppublish
Résumé
Aluminum oxide based optically stimulated luminescent dosimeters (OSLD) have been recognized as a useful dosimeter for measuring CT dose, particularly for patient dose measurements. Despite the increasing use of this dosimeter, appropriate dosimeter calibration techniques have not been established in the literature; while the manufacturer offers a calibration procedure, it is known to have relatively large uncertainties. The purpose of this work was to evaluate two clinical approaches for calibrating these dosimeters for CT applications, and to determine the uncertainty associated with measurements using these techniques. Three unique calibration procedures were used to calculate dose for a range of CT conditions using a commercially available OSLD and reader. The three calibration procedures included calibration (a) using the vendor-provided method, (b) relative to a 120 kVp CT spectrum in air, and (c) relative to a megavoltage beam (implemented with
Identifiants
pubmed: 30426664
doi: 10.1002/acm2.12491
pmc: PMC6333198
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
331-339Subventions
Organisme : NCI NIH HHS
ID : P30 CA016672
Pays : United States
Organisme : American Legion Auxiliary (Scarboro)
Organisme : Cancer Center Support grant
ID : P30 CA 016672
Organisme : NIH/NCI Public Health Service
ID : 180803
Organisme : PEO Scholar Award (Scarboro)
Organisme : NCI NIH HHS
ID : U24 CA180803
Pays : United States
Informations de copyright
© 2018 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.
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