Open AccessPortable and wide-range solid-state transmission densitometer for quality control in film radiography
Author(s) -
Javier Morales Aramburo,
Sigifredo Solano González,
Jorge Toledo Toledo
Publication year - 2010
Publication title -
journal of medical physics/journal of medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.292
H-Index - 24
eISSN - 1998-3913
pISSN - 0971-6203
DOI - 10.4103/0971-6203.62135
Subject(s) - densitometer , solid state , transmission (telecommunications) , radiography , optics , materials science , dosimetry , medical physics , radiation , optoelectronics , computer science , nuclear medicine , medicine , engineering , physics , telecommunications , engineering physics , radiology
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.