Traceability of Solid State Detectors used for Half Value Layer measurements in diagnostic radiology
Конференцијски прилог (Објављена верзија)
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Quality Control (QC) measurements in diagnostic radiology are performed on a wide range of X-ray machines, used for different modalities such as radiography, fluoroscopy, mammography etc. Diagnostic radiology multimeters are in wide use in QC measurements [IAEA TRS 457, IAEA, 2007]. Many of these devices are based on several solid-state detectors positioned behind different filters, and values of different quantities can be calculated based on the signal from these detectors. Besides air kerma and X-ray tube high voltage, multimeters can often measure other special quantities, such as Half Value Layer (HVL), total filtration, irradiation time, product of current and time etc. Calibrations for these special quantities are very rarely available in Secondary Standards Dosimetry Laboratories (SSDL) or other calibration laboratories, so many end-users have problems to establish traceability. Research is currently being undertaken in Vinca Institute SSDL with the aim to establish traceabilit...y for HVL calibrations. HVL is a quantity that is commonly measured in SSDLs during internal QA/QC procedures, but there is no consensus on how to establish the traceability in SSDLs. Furthermore, measurement uncertainty for HVL is rarely estimated. In this research, HVL measurement procedure will be updated and detailed evaluation of measurement uncertainty will be undertaken. Sources of uncertainty that will be considered are: energy dependence of ionization chamber, thickness of aluminum filters, statistics of current measurements (reference chamber and monitor chamber), temperature, pressure etc. Traceable results of HVL measurements will further be used to calibrate and test multimeters in reference fields. In this paper, first results are presented.
Кључне речи:
Half Value Layer / diagnostic radiology / traceability / measurement uncertaintyИзвор:
RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts, 2023, 29-29Издавач:
- Niš : Sievert Association
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
- International Atomic Energy Agency (IAEA) [research contract No: 24688, which is part of the IAEA Coordinated Research Project E24024, entitled ‘Evaluation of the Dosimetry Needs and Practices for the Update of the Code of Practice for Dosimetry in Diagnostic Radiology (TRS-457)]
Напомена:
- RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts; May 29 - June 2, 2023, Anavyssos, Greece
Колекције
Институција/група
VinčaTY - CONF AU - Živanović, Miloš AU - Komatina, Ivana AU - Kržanović, Nikola PY - 2023 UR - https://vinar.vin.bg.ac.rs/handle/123456789/11912 AB - Quality Control (QC) measurements in diagnostic radiology are performed on a wide range of X-ray machines, used for different modalities such as radiography, fluoroscopy, mammography etc. Diagnostic radiology multimeters are in wide use in QC measurements [IAEA TRS 457, IAEA, 2007]. Many of these devices are based on several solid-state detectors positioned behind different filters, and values of different quantities can be calculated based on the signal from these detectors. Besides air kerma and X-ray tube high voltage, multimeters can often measure other special quantities, such as Half Value Layer (HVL), total filtration, irradiation time, product of current and time etc. Calibrations for these special quantities are very rarely available in Secondary Standards Dosimetry Laboratories (SSDL) or other calibration laboratories, so many end-users have problems to establish traceability. Research is currently being undertaken in Vinca Institute SSDL with the aim to establish traceability for HVL calibrations. HVL is a quantity that is commonly measured in SSDLs during internal QA/QC procedures, but there is no consensus on how to establish the traceability in SSDLs. Furthermore, measurement uncertainty for HVL is rarely estimated. In this research, HVL measurement procedure will be updated and detailed evaluation of measurement uncertainty will be undertaken. Sources of uncertainty that will be considered are: energy dependence of ionization chamber, thickness of aluminum filters, statistics of current measurements (reference chamber and monitor chamber), temperature, pressure etc. Traceable results of HVL measurements will further be used to calibrate and test multimeters in reference fields. In this paper, first results are presented. PB - Niš : Sievert Association C3 - RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts T1 - Traceability of Solid State Detectors used for Half Value Layer measurements in diagnostic radiology SP - 29 EP - 29 UR - https://hdl.handle.net/21.15107/rcub_vinar_11912 ER -
@conference{ author = "Živanović, Miloš and Komatina, Ivana and Kržanović, Nikola", year = "2023", abstract = "Quality Control (QC) measurements in diagnostic radiology are performed on a wide range of X-ray machines, used for different modalities such as radiography, fluoroscopy, mammography etc. Diagnostic radiology multimeters are in wide use in QC measurements [IAEA TRS 457, IAEA, 2007]. Many of these devices are based on several solid-state detectors positioned behind different filters, and values of different quantities can be calculated based on the signal from these detectors. Besides air kerma and X-ray tube high voltage, multimeters can often measure other special quantities, such as Half Value Layer (HVL), total filtration, irradiation time, product of current and time etc. Calibrations for these special quantities are very rarely available in Secondary Standards Dosimetry Laboratories (SSDL) or other calibration laboratories, so many end-users have problems to establish traceability. Research is currently being undertaken in Vinca Institute SSDL with the aim to establish traceability for HVL calibrations. HVL is a quantity that is commonly measured in SSDLs during internal QA/QC procedures, but there is no consensus on how to establish the traceability in SSDLs. Furthermore, measurement uncertainty for HVL is rarely estimated. In this research, HVL measurement procedure will be updated and detailed evaluation of measurement uncertainty will be undertaken. Sources of uncertainty that will be considered are: energy dependence of ionization chamber, thickness of aluminum filters, statistics of current measurements (reference chamber and monitor chamber), temperature, pressure etc. Traceable results of HVL measurements will further be used to calibrate and test multimeters in reference fields. In this paper, first results are presented.", publisher = "Niš : Sievert Association", journal = "RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts", title = "Traceability of Solid State Detectors used for Half Value Layer measurements in diagnostic radiology", pages = "29-29", url = "https://hdl.handle.net/21.15107/rcub_vinar_11912" }
Živanović, M., Komatina, I.,& Kržanović, N.. (2023). Traceability of Solid State Detectors used for Half Value Layer measurements in diagnostic radiology. in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts Niš : Sievert Association., 29-29. https://hdl.handle.net/21.15107/rcub_vinar_11912
Živanović M, Komatina I, Kržanović N. Traceability of Solid State Detectors used for Half Value Layer measurements in diagnostic radiology. in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts. 2023;:29-29. https://hdl.handle.net/21.15107/rcub_vinar_11912 .
Živanović, Miloš, Komatina, Ivana, Kržanović, Nikola, "Traceability of Solid State Detectors used for Half Value Layer measurements in diagnostic radiology" in RAP 2023 : International conference on radiation applications in Physics, Chemistry, Biology, Medical Sciences, Engineering and Environmental Sciences; Book of abstracts (2023):29-29, https://hdl.handle.net/21.15107/rcub_vinar_11912 .