Evaluation of a fluorescent light densitometer for radiochromic film analysis
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 13-16 |
Journal / Publication | Radiation Measurements |
Volume | 35 |
Issue number | 1 |
Publication status | Published - 2002 |
Externally published | Yes |
Link(s)
Abstract
Radiochromic film dosimetry used in high energy X-ray detection has been evaluated using a VIDAR VXR-12 digitiser for accuracy and results are compared to other densitometers. The VIDAR scanner uses a broad band fluorescent light source which however, produces a negligible ultraviolet reaction effect on the radiochromic film with an estimated equivalent dose of 0.25 cGy darkening per scan to MD-55-2 film. By varying the exposure setting on the scanner, more accurate information can be obtained using radiochromic film within a certain optical density range. Over the range of 0-20 Gy, the scanner can accurately measure dose with a standard deviation of 1.8% calculated between the measured values and a polynomial fit to data. The VIDAR scanner is shown to be a suitable densitometer for radiochromic film. © 2002 Elsevier Science Ltd. All rights reserved.
Citation Format(s)
Evaluation of a fluorescent light densitometer for radiochromic film analysis. / Cheung, T.; Butson, M. J.; Yu, P. K N.
In: Radiation Measurements, Vol. 35, No. 1, 2002, p. 13-16.
In: Radiation Measurements, Vol. 35, No. 1, 2002, p. 13-16.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review