Measurement of dose‐area product with GafChromic XR Type R film

Many of the newer X‐ray machines are equipped with electronic means to provide dose–area product (DAP) information. For machines without that ability, an alternative method is to record radiation on a film that can handle a large amount of cumulative exposure. The use of GafChromic XR Type R film wa...

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Detalles Bibliográficos
Autores principales: Thomas, George, Li, Yushan, Chu, Robert Y.L., Cheung, John Y., Maqbool, Feroz, Rabe, Frank, Burns, G. Scott
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2005
Materias:
Radiation Measurements
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5723497/
https://www.ncbi.nlm.nih.gov/pubmed/16143797
http://dx.doi.org/10.1120/jacmp.v6i3.2047
Descripción
Sumario:Many of the newer X‐ray machines are equipped with electronic means to provide dose–area product (DAP) information. For machines without that ability, an alternative method is to record radiation on a film that can handle a large amount of cumulative exposure. The use of GafChromic XR Type R film was investigated for this purpose by placing it at the X‐ray tube assembly to record the radiation in interventional radiological procedures. Dose‐area product was determined with a reflective densitometer and then with a flatbed scanner. Precisions were demonstrated to be 5% and 2%, respectively. In a comparison with the machine‐recorded DAP, a regression analysis showed the validity of both techniques for values less than 1200 Gy‐cm(2). PACS numbers: 87.52.Df, 87.66.Cd

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