Results 151 to 160 of about 18,198 (165)
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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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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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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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The suitability of diazochrome KBL film for UV dosimetry
Physics in Medicine and Biology, 1984A promising material for use in a UV film badge dosemeter is diazo film. The optical density of this substance changes on exposure to ultraviolet radiation. The present paper reports some of the relevant factors in the processing of the film and also on its spectral sensitivity.
H Moseley, J Robertson, J O'Donoghue
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A Film Dosimetry System for Use in Computed Tomography
Radiology, 1978The authors describe a film dosimetry system for use in calculating the surface dose delivered by a CT scanner. Kodak XV-2 film is wrapped around a cylindrical water-filled phantom and the dose distribution is recorded. This system is easier to use than thermoluminescent dosimetry (TLD) and provides a detailed map of the dose distribution.
Kenneth E. Ekstrand, Robert L. Dixon
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On the re-calibration process in radiochromic film dosimetry
Physica Medica, 2017The accuracy and precision of the dose estimates obtained with radiochromic film dosimetry are investigated in a clinical environment. The improvement in the accuracy of dose estimates reached with corrective methods is analyzed. Two novel re-calibration algorithms for radiochromic film dosimetry are presented.Two different EBT3 lots are evaluated in ...
Juan Antonio Vera-Sánchez +2 more
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Computed tomography phantom for radiochromic film dosimetry
Australasian Physics & Engineering Sciences in Medicine, 2007To evaluate in detail the dose distribution during computed tomography (CT), a sheet roll CT dosimetry phantom (SRCT-P) with a radiochromic film (RF) was experimentally developed. The SRCT-P was made by rolling up a vinyl chloride sheet in a cylindrical shape to arbitrarily select the SRCT-P diameter, dose measurement position, and depth.
S. Takewa +6 more
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Radiochromic film dosimetry for clinical proton beams
Applied Radiation and Isotopes, 1997Depth doses and lateral profiles for proton beams with energies of 100-250 MeV were measured with a high-sensitivity GafChromic MD-55 film, which requires no post-irradiation development. The exposed MD-55 films were evaluated with the RIT 113 film dosimetry system.
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Radiochromic film dosimetry: Past, present, and future
Physica Medica, 2011In radiation therapy, an accurate dose determination and a precise dose delivery to the tumour are directly associated with better treatment outcomes in terms of higher tumour control and lower post radiation therapy complications. Over the years, film dosimetry was developed into a powerful tool for radiotherapy treatment verification and quality ...
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