Measurement of radon progenies using the Timepix detector.
After an introduction of Timepix detector, results of these detectors with silicon and cadmium telluride detection layer in assessment of activity of short-lived radon decay products are presented. They were collected on an open-face filter by means of one-grab sampling method from the NRPI radon chamber. Activity of short-lived radon decay products was estimated from measured alpha decays of 218,214Po. The results indicate very good agreement between the use of both Timepix detectors and an NRPI reference instrument, continuous monitor Fritra 4. Low-level detection limit for EEC was estimated to be 41 Bq m(-3) for silicon detection layer and 184 Bq m(-3) for CdTe detection layer, respectively.
National Radiation Protection Institute, Bartoskova 28, Prague 140 00, Czech Republic boris.bulanek@suro.cz.
Boris
B
Bulanek
National Radiation Protection Institute, Bartoskova 28, Prague 140 00, Czech Republic.
Karel
K
Jilek
Institute of Experimental and Applied Physics, Horska 3a/22, Prague 128 00, Czech Republic.
Pavel
P
Cermak
D000396:Air Pollutants, Radioactive / Q000032:analysis*; D019187:Cadmium Compounds / Q000737:chemistry*; D004867:Equipment Design; D006801:Humans; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D017687:Radon Daughters / Q000032:analysis*; D012825:Silicon / Q000737:chemistry*; D013691:Tellurium / Q000737:chemistry*
D000396:Air Pollutants, Radioactive; D019187:Cadmium Compounds; D017687:Radon Daughters; D013691:Tellurium; C028337:cadmium telluride; D012825:Silicon