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A doctoral dissertation at the University of Murcia by David Armenta Barranco has built a collimator (instrument precision) with matched filter which reduces medical radiation dose in children while maintaining the diagnostic quality of radiographic appearance.

The collimator, designed for orthodontic clinical use, provides a reduction of 40% of the treatment field, but also homogenizes the irradiated volume and decreases the radiation in the lens, in the submandibular gland in the parotid gland and thyroid gland .

This raises the overall reduction in ionizing radiation dose given to children to 66.4%, according to results of a researcher who has obtained excellent cum laude.

In addition, the study of David Armero proposed a protection system in order to reduce the biological damage induced by ionizing radiation "as low as reasonably possible."

Research has established that it is possible to use non-toxic antioxidants and normal human diet may reduce the genotoxic damage induced by ionizing radiation, reaching a protection factor of up to 74%.

The dissertation has been supervised by Professor Miguel Alcaraz Baños.

Source: Universidad de Murcia