title: AIR KERMA TO Hp(3) CONVERSION COEFFICIENTS FOR IEC 61267 RQR X-RAY RADIATION QUALITIES: APPLICATION TO DOSE MONITORING OF THE LENS OF THE EYE IN MEDICAL DIAGNOSTICS.
abstract: Recent studies highlight the fact that the new eye lens dose limit can be exceeded in interventional radiology procedures and that eye lens monitoring could be required for these workers. The recommended operational quantity for monitoring of eye lens exposure is the personal dose equivalent at 3 mm depth Hp(3) (ICRU 51). However, there are no available conversion coefficients in international standards, while in the literature coefficients have only been calculated for monoenergetic beams and for ISO 4037-1 X-ray qualities. The aim of this article is to provide air kerma to Hp(3) conversion coefficients for a cylindrical phantom made of ICRU-4 elements tissue-equivalent material for RQR radiation qualities (IEC-61267) from 40 to 120 kV and for angles of incidence from 0 to 180°, which are characteristic of medical workplace. Analytic calculations using interpolation techniques and Monte Carlo modelling have been compared.
authors.affiliation: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain sara.principi@upc.edu.
authors.forename: S
authors.initials: S
authors.lastname: Principi
authors.affiliation: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Guardiola
authors.affiliation: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain.
authors.forename: M A
authors.initials: MA
authors.lastname: Duch
authors.affiliation: Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya (UPC), Barcelona 08028, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Ginjaume
mesh_terms: D000388:Air; D000465:Algorithms; D002138:Calibration; D003198:Computer Simulation; D006801:Humans; D007908:Lens, Crystalline / Q000528:radiation effects*; D009010:Monte Carlo Method; D016273:Occupational Exposure; D019047:Phantoms, Imaging; D017785:Photons; D011829:Radiation Dosage; D000072232:Radiation Dosimeters; D011834:Radiation Monitoring / Q000295:instrumentation / Q000379:methods* / Q000592:standards*; D011835:Radiation Protection / Q000295:instrumentation / Q000379:methods*; D014965:X-Rays