title: MOSFET dosimetry for radiation dose assessment of bismuth shielding of the eye in children.
abstract: OBJECTIVE
  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.
  
  
  CONCLUSIONS
  Bismuth shielding reduced radiation dose to the eye by up to 42%; shield artifact fell outside the diagnostic area of interest.
authors.affiliation: Department of Radiology, Duke University Medical Center, DUMC Box 3808, Durham, NC 27705, USA.
authors.forename: Srinivasan
authors.initials: S
authors.lastname: Mukundan
authors.forename: Page Inman
authors.initials: PI
authors.lastname: Wang
authors.forename: Donald P
authors.initials: DP
authors.lastname: Frush
authors.forename: Terry
authors.initials: T
authors.lastname: Yoshizumi
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Marcus
authors.forename: Emily
authors.initials: E
authors.lastname: Kloeblen
authors.forename: Meredith
authors.initials: M
authors.lastname: Moore
mesh_terms: D001729:Bismuth; D001822:Body Burden; D002675:Child, Preschool; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005123:Eye / Q000000981:diagnostic imaging*; D006801:Humans; D011829:Radiation Dosage; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods*; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods; D012062:Relative Biological Effectiveness; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D014173:Transistors, Electronic
chemical_list: D001729:Bismuth