MOSFET dosimetry for radiation dose assessment of bismuth shielding of the eye in children.
basic_science · Level V
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- Record sourced from PubMed, PMID 17515389.
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Abstract
The purpose of our study was to measure radiation dose to the orbit during pediatric cranial CT with and without bismuth shielding using a novel dosimetry system. Cranial CT was performed on a pediatric anthropomorphic phantom, with and without bismuth eye shields. A solid-state metal oxide semiconductor field effect transistor (MOSFET) dosimeter was used to obtain real-time dose measurements. Bismuth shielding reduced radiation dose to the eye by up to 42%; shield artifact fell outside the diagnostic area of interest.
Medical subject headings
- Bismuth
- Eye
- Radiation Protection
- Radiometry
- Tomography, X-Ray Computed
- Transistors, Electronic