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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:28 |
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Conference: Bucharest University Faculty of Physics 2010 Meeting
Section: Applied Nuclear Physics
Title:
Comparison between responses of TL (Thermo - 8806) and Thermo EPD N2 dosemeters in mixed neutron and gamma fields
Authors:
Alexandru Jipa (1), Alecsandru Chirosca (1), Denis Stanca (1), Dorin Dumitrescu (2), Ion Popescu (2), Niculae Ghiordanescu (1), Octavian Duliu (1)
Affiliation:
1) University of Bucharest – Faculty of Physics
2) Cernavoda Nuclear Power Plant
E-mail
alecsandru.chirosca@ccpr.ro
Keywords:
Neutron Field Dosimetry, Mixed Field Dosimetry, Neutron Deep Dose, Neutron field correction, Neutron dose evaluation
Abstract:
This work contains the comparison for neutron field dose measurements made with EPD-N2 and 8806 neutron dosemeters, on several locations inside the Unit 1 Reactor Building at CNE Cernavoda. Detectors are calibrated relative to a moderated 252Cf source so that all measurements are compatible. The EPD N2 has a calibration certificate issued by Physikalish Technische Bundesanstalt (PTB). The TL detectors where calibrated at Research Center for Radiation Protection (Faculty of Physics – University of Bucharest) following the Thermo 8806 procedure with a 137Cs metrological accredited source. Following the data readout, TL detectors have a better response compared to EPD N2 (the measurement is within 20%) for deep dose – Hp(10). All detectors were placed in known neutron fields in order to receive 0.5 mSv (estimated neutron dose). We use a correction coefficient for each of the irradiation spectra so that we can better evaluate the deep dose, for specific, known neutron fields, with Harshaw 8806 TL detectors.
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