Conference
LiF:Mg,Ti TLD angular dependence evaluation at low energy incident radiation
| العنوان: | LiF:Mg,Ti TLD angular dependence evaluation at low energy incident radiation |
|---|---|
| المؤلفون: | Kržanović, Nikola, Stanković Petrović, Jelena, Živanović, Miloš, Krajinović, Marko, Topalović, Dušan, Kojić, Andrea, Božović, Predrag |
| المصدر: | RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences : Book of abstracts |
| بيانات النشر: | Sievert Association |
| سنة النشر: | 2023 |
| المجموعة: | VinaR Repository (Vinča Institute of Nuclear Sciences / University of Belgrade) |
| مصطلحات موضوعية: | individual monitoring, Hp(10), Hp(0.07), external radiation dosimetry |
| الوصف: | Accuracy of measurement in individual dosimetry monitoring service is achieved by performing calibration of dosemeters, ensuring that the measured values are traceable to the primary standard for the quantity of interest. Even though a dosemeter can exhibit remarkable performance in the reference calibration radiation field (e.g. 137Cs), its performance can greatly differ under certain conditions. Effects of different influence quantities need to be examined to ensure that the dosemeters are reliable for use in a specific ionizing radiation practice. The most significant radiation characteristic influence quantities are the radiation energy, angle of incidence and dose (rate). International standards issued by IEC and ISO define radiation conditions and procedures for dosemeter type testing under effects of different radiation, environmental and mechanical influence quantities. Dosemeter performance is expressed in terms of relative response and is evaluated by comparing with defined limits of variation, taking into account the measurement uncertainty, according to [IEC 62387:2020, IEC, 2020]. A passive dosimetry system based on LiF:Mg,Ti thermoluminescent dosemeters (TLD) was tested for the effects of photon energy and angle of incidence in two dosemeter orientations, horizontal (up/down) and vertical (left/right), for the measurement of personal dose equivalent (Hp(10) and Hp(0.07)). The dosemeters were read out on the Harshaw TLD™ Model 6600 Plus Automated Reader (Thermo Fisher Scientific, USA), calibrated in 137Cs reference field. Low-energy X-ray reference field N-40, established according to ISO 4037-1:2019 [ISO 4037, ISO, 2019] and ±45°, ±60° angles of incidence were used to examine the passive dosimetry system performance. Limits of variation from -29 % to +67 %, defined in [IEC 62387:2020, IEC, 2020] for energy and angular relative response, were used for performance evaluation. The overresponses for Hp(10) for 45° and 60° were (51 – 62) % and (76 – 88) %, respectively. The results for Hp(0.07) for 45° ... |
| نوع الوثيقة: | conference object |
| اللغة: | English |
| Relation: | info:eu-repo/grantAgreement/MESTD/inst-2020/200017/RS//; https://vinar.vin.bg.ac.rs/handle/123456789/11908; https://hdl.handle.net/21.15107/rcub_vinar_11908 |
| الاتاحة: | https://vinar.vin.bg.ac.rs/handle/123456789/11908 http://vinar.vin.bg.ac.rs/bitstream/id/32699/RAP-3.pdf https://hdl.handle.net/21.15107/rcub_vinar_11908 |
| Rights: | openAccess ; https://creativecommons.org/licenses/by/4.0/ ; BY |
| رقم الانضمام: | edsbas.B52ADE00 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |