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Evaluation of a glassless photographic film scanner for high-gradient radiochromic film dosimetry

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Abstract
This study evaluates the performance of the Nikon Coolscan 9000 ED film scanner for high-gradient radiochromic film dosimetry. As a reference for comparison, analogue experiments were performed on the Epson Expression 10000XL flatbed scanner. Based on these results, a dosimetric protocol was established for the Nikon scanner and its overall performance for high-gradient dosimetry was evaluated. The Nikon scanner demonstrated a high sensitivity for radiochromic film dosimetry, resulting in more contrast in the digitized image. The scanner's optics also demonstrated excellent stability and did not necessitate warm-up scans prior to data acquisition. Moreover, negative effects of temperature changes of the film inside the scanner were shown to be limited. None of the digitized images showed significant disturbances by moire-patterns, by virtue of the absence of a glass plate for film positioning. However, scanner response was found to vary considerably across the reading area, requiring an optical density-dependent correction procedure to be incorporated into the scanning protocol. The main limitation of the Nikon Coolscan 9000 ED transmission scanner remains its film size restriction to 6.2 x 20 cm(2). Nevertheless, its excellent characteristics render it the preferential tool for high-gradient radiochromic film dosimetry in applications limited to small film sizes, such as dosimetry in the build-up region.
Keywords
RADIATION-DOSIMETRY, UNCERTAINTY ANALYSIS, FLAT-BED SCANNER, GAFCHROMIC EBT FILM, ENERGY-DEPENDENCE, DOSE VERIFICATION, PHOTON BEAMS, RADIOTHERAPY, RESOLUTION, PHANTOM

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MLA
De Puysseleyr, Annemieke, Raju Prasad Srivastava, Leen Paelinck, et al. “Evaluation of a Glassless Photographic Film Scanner for High-gradient Radiochromic Film Dosimetry.” PHYSICS IN MEDICINE AND BIOLOGY 57.1 (2012): 127–142. Print.
APA
De Puysseleyr, A., Srivastava, R. P., Paelinck, L., De Neve, W., & De Wagter, C. (2012). Evaluation of a glassless photographic film scanner for high-gradient radiochromic film dosimetry. PHYSICS IN MEDICINE AND BIOLOGY, 57(1), 127–142.
Chicago author-date
De Puysseleyr, Annemieke, Raju Prasad Srivastava, Leen Paelinck, Wilfried De Neve, and Carlos De Wagter. 2012. “Evaluation of a Glassless Photographic Film Scanner for High-gradient Radiochromic Film Dosimetry.” Physics in Medicine and Biology 57 (1): 127–142.
Chicago author-date (all authors)
De Puysseleyr, Annemieke, Raju Prasad Srivastava, Leen Paelinck, Wilfried De Neve, and Carlos De Wagter. 2012. “Evaluation of a Glassless Photographic Film Scanner for High-gradient Radiochromic Film Dosimetry.” Physics in Medicine and Biology 57 (1): 127–142.
Vancouver
1.
De Puysseleyr A, Srivastava RP, Paelinck L, De Neve W, De Wagter C. Evaluation of a glassless photographic film scanner for high-gradient radiochromic film dosimetry. PHYSICS IN MEDICINE AND BIOLOGY. 2012;57(1):127–42.
IEEE
[1]
A. De Puysseleyr, R. P. Srivastava, L. Paelinck, W. De Neve, and C. De Wagter, “Evaluation of a glassless photographic film scanner for high-gradient radiochromic film dosimetry,” PHYSICS IN MEDICINE AND BIOLOGY, vol. 57, no. 1, pp. 127–142, 2012.
@article{2028410,
  abstract     = {{This study evaluates the performance of the Nikon Coolscan 9000 ED film scanner for high-gradient radiochromic film dosimetry. As a reference for comparison, analogue experiments were performed on the Epson Expression 10000XL flatbed scanner. Based on these results, a dosimetric protocol was established for the Nikon scanner and its overall performance for high-gradient dosimetry was evaluated. The Nikon scanner demonstrated a high sensitivity for radiochromic film dosimetry, resulting in more contrast in the digitized image. The scanner's optics also demonstrated excellent stability and did not necessitate warm-up scans prior to data acquisition. Moreover, negative effects of temperature changes of the film inside the scanner were shown to be limited. None of the digitized images showed significant disturbances by moire-patterns, by virtue of the absence of a glass plate for film positioning. However, scanner response was found to vary considerably across the reading area, requiring an optical density-dependent correction procedure to be incorporated into the scanning protocol. The main limitation of the Nikon Coolscan 9000 ED transmission scanner remains its film size restriction to 6.2 x 20 cm(2). Nevertheless, its excellent characteristics render it the preferential tool for high-gradient radiochromic film dosimetry in applications limited to small film sizes, such as dosimetry in the build-up region.}},
  author       = {{De Puysseleyr, Annemieke and Srivastava, Raju Prasad and Paelinck, Leen and De Neve, Wilfried and De Wagter, Carlos}},
  issn         = {{0031-9155}},
  journal      = {{PHYSICS IN MEDICINE AND BIOLOGY}},
  keywords     = {{RADIATION-DOSIMETRY,UNCERTAINTY ANALYSIS,FLAT-BED SCANNER,GAFCHROMIC EBT FILM,ENERGY-DEPENDENCE,DOSE VERIFICATION,PHOTON BEAMS,RADIOTHERAPY,RESOLUTION,PHANTOM}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{127--142}},
  title        = {{Evaluation of a glassless photographic film scanner for high-gradient radiochromic film dosimetry}},
  url          = {{http://dx.doi.org/10.1088/0031-9155/57/1/127}},
  volume       = {{57}},
  year         = {{2012}},
}

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