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Portable and wide-range solid-state transmission densitometer for quality control in film radiography
Javier Morales Aramburo1, Sigifredo Solano Gonzalez, Jorge Toledo Toledo
1Physics Department, National University of Colombia, Calle 59A No 63-20 - Núcleo El Volador, Medellín - Antioquia, Colombia, Medellín-Colombia.
Abstract:
In biology, materials science, radiography quality control or film dosimetry in radiotherapy, a transmission densitometer is useful for measurements of optical density. The design proposed here is oriented to quality control in radiographic films. The instrument described here utilizes low-cost solid-state devices and is easy to construct. The use of 1-watt white light-emitting diode in this densitometer enables low power consumption and a cold light source. Moreover, the instrument does not need a reference light, which results in decreasing the number of parts and reducing the overall size of the apparatus.
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