Abstract
Rare earth filters are known to reduce radiation dose in radiological investigations. The present investigation used Er and Sm filters that were selected because of their chemical stability and ability to withstand prolonged exposure to the atmosphere. They were used in a comparison with a conventional aluminium filter in a range of paediatric radiological procedures. Introduction of the filters instead of the conventional filter, resulted in a dose reduction of up to twofold with no discernible deterioration in image quality.
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References
Atkins HL, Fairchild RG, Robertson JS, Greenberg D (1975) Effect of absorption edge filters on diagnostic X-ray spectra. Radiology 115: 431–437
Richards AG, Barbor GL, Bader JD, et al (1970) Samarium filters for dental radiography. Oral Surg 29: 704–715
Villagran JE, Hobbs BB, Taylor KW (1978) Reduction of patient exposures by the use of heavy elements as radiation filters in diagnostic radiology. Radiology 127: 249–254
Johnson MA, Burgess AE (1981) Clinical use of a Gadolinium filter in Paediatric Radiography. Pediatr Radiol 10: 229–232
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Fleay, R.F., Fox, R.A., Sprague, P.L. et al. Dose reduction in paediatric radiology using rare earth filtration. Pediatr Radiol 14, 332–334 (1984). https://doi.org/10.1007/BF01601887
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DOI: https://doi.org/10.1007/BF01601887