Sensitivity of linear CCD array based film scanners used for film dosimetry.
Med Phys
; 33(11): 3993-6, 2006 Nov.
Article
en En
| MEDLINE
| ID: mdl-17153378
ABSTRACT
Film dosimetry is commonly performed by using linear CCD array transmission optical densitometers. However, these devices suffer from a variation in response along the detector array. If not properly corrected for, this nonuniformity may lead to significant overestimations of the measured dose as one approaches regions close to the edges of the scanning region. In this note, we present measurements of the spatial response of an AGFA Arcus II document scanner used for radiochromic film dosimetry. Results and methods presented in this work can be generalized to other CCD based transmission scanners used for film dosimetry employing either radiochromic or radiographic films.
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Banco de datos:
MEDLINE
Asunto principal:
Procesamiento de Señales Asistido por Computador
/
Periféricos de Computador
/
Dosimetría por Película
Tipo de estudio:
Diagnostic_studies
/
Evaluation_studies
Idioma:
En
Año:
2006
Tipo del documento:
Article