INTERCOMPARISON OF EYE LENS DOSEMETERS.

Authors :: Behrens, R.
Hupe, O.
Busch, F.
Denk, J.
Engelhardt, J.
Günther, K.
Hödlmoser, H.
Jordan, M.
Strohmaier, J.
Source :: Radiation Protection Dosimetry; Apr2017, Vol. 174 Issue 1, p6-12, 7p
Publication Year :: 2017
Abstract: An intercomparison of eye lens dosemeters has been conducted in terms of the quantity H<subscript>p</subscript>(3). For the first time, besides photon radiation also beta radiation qualities were included. Three dosemeter types designed for the quantity H<subscript>p</subscript>(3) and ten for H<subscript>p</subscript>(0.07) took part in the intercomparison. As shown in a previous intercomparison for photon radiation only, the dosemeters designed for H<subscript>p</subscript>(0.07) and calibrated in terms of H<subscript>p</subscript>(3) performed well in photon radiation fields. But for beta radiation, it turned out that H<subscript>p</subscript>(0.07) dosemeters over-responded up to a factor of 5 000 (with respect to the true H<subscript>p</subscript>(3) dose) in the medium beta energy range (85Kr with a beta endpoint energy of 0.69 MeV), while some H<subscript>p</subscript>(3) dosemeters performed quite well. For medium (57 keV) and high (662 keV) energy photon radiation, all dosemeter types showed response values well within the trumpet curve according to the current draft of ISO 14146. [ABSTRACT FROM AUTHOR]