Results 241 to 250 of about 2,244,912 (267)
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The repeatability of the scanner in radiochromic film dosimetry
Physica Medica, 2016Purpose The repeatability of the scanner EPSON 10000 XL in radiochromic film dosimetry was studied. Several patterns were observed and analyzed. Methods The dispersion of the measures of the scanner as a function of the pixel position was calculated for resolutions 50, 72, 96 and 150 dpi.
Sljivic Zeljko +4 more
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Micrometer-resolved film dosimetry using a microscope in microbeam radiation therapy.
Medical Physics (Lancaster), 2015PURPOSE Microbeam radiation therapy (MRT) is a still preclinical tumor therapy approach that uses arrays of a few tens of micrometer wide parallel beams separated by a few 100 μm.
S. Bartzsch +4 more
semanticscholar +1 more source
A radiochromic dye film for UV dosimetry
Journal of Photochemistry and Photobiology A: Chemistry, 1992Abstract A mixture of colourless new fuchsin dye and sandolan yellow dye was incorporated into a thin film of poly(vinyl alcohol) polymer to form a yellow UV radiation dosimeter which changed to red when exposed to UV radiation. The depth of the red colour was dependent solely on the radiant exposure.
A. A. Abdel Fattah +2 more
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Optimizing the recalibration process in radiochromic film dosimetry
Physics in Medicine & Biology, 2020Intra-lot, inter-scan and other variabilities in radiochromic film dosimetry may have a severe impact on absolute dosimetry with this dosimeter. In the literature, several dosimetry protocols may be found characterized by different calibration functions and different film response variables.
Carmen Ruiz-Morales +2 more
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Gafchromic® EBT films for ion dosimetry
Radiation Measurements, 2010Abstract For dose delivery to patients, scanning ion beams are going to be increasingly used in the upcoming ion beam therapy facilities. Especially carbon ion beams are able to produce steep dose gradients. However, the currently used method for patient dose verification, employing ionization chamber arrays, provides a spatial resolution of 1 cm ...
Oliver Jäkel +2 more
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Dye Film Dosimetry for Radiation Processing
IEEE Transactions on Nuclear Science, 1981Commercially available plastic films containing dyes or dye precursors are convenient dosimeters and imaging media for electron beams or photons used for industrial radiation processing. As "grainless" imaging systems having thicknesses down to a few micrometers, they provide high spatial resolution for determining detailed absorbed dose distributions ...
W. L. McLaughlin, J. C. Humphreys
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A Film Phantom for Routine Film Dosimetry in the Clinical Environment
Medical Dosimetry, 1990This paper describes a new film phantom we have designed that eliminates many of the problems found in phantoms used in film dosimetry. This phantom employs two sheets of solid water attached with nylon hinges and aligned with pins. It is made light-impermeable through the use of nylon hook-and-loop fasteners.
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Novel Radiochromic Films for Clinical Dosimetry
Radiation Protection Dosimetry, 1996New transparent radiochromic films, GafChromic MD-55 and NMD-55, which turn from colourless to deep blue upon irradiation, have been designed particularly for measuring radiation therapy absorbed doses (1 Gy to 100Gy). They are also useful for high resolution mapping of dose distributions, radiographic imaging, treatment planning dosimetry, beam ...
András Kovács +7 more
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A review on radiochromic film dosimetry for dose verification in high energy photon beams
, 2021T. Santos, T. Ventura, M. C. Lopes
semanticscholar +1 more source
Film dosimetry for fluoroscopic procedures: potential errors
Radiation Protection Dosimetry, 2005Kodak EDR 2 film was calibrated across the range of beam qualities and exposure rates typically used in our cardiac catheterisation laboratory. Its dose-response curve was successfully modelled up to its saturation point of 1 Gy. The consistency of the film's response with film batch, time between exposure and processing processor and day-to-day ...
R. E. Morrell, A. T. Rogers
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