Radiation Protection Dosimetry Advance Access originally published online on June 1, 2009
Radiation Protection Dosimetry 2009 135(3):149-153; doi:10.1093/rpd/ncp099
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Deficiencies of active electronic radiation protection dosemeters in pulsed fields
Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
* Corresponding author: ulrike.ankerhold{at}ptb.de
Received March 18, 2009, accepted April 29, 2009
Nowadays nearly all radiation fields used for X-ray diagnostics are pulsed. These fields are characterised by a high dose rate during the pulse and a short pulse duration in the range of a few milliseconds. The use of active electronic dosemeters has increased in the past few years, but these types of dosemeters might possibly not measure reliably in pulsed radiation fields. Not only personal dosemeters but also area dosemeters that are used mainly for dose rate measurements are concerned. These cannot be substituted by using passive dosemeter types. The characteristics of active electronic dosemeters determined in a continuous radiation field cannot be transferred to those in pulsed fields. Some provisional measurements with typical electronic dosemeters in pulsed radiation fields are presented to reveal this basic problem.