기준 방사선장 구축을 위한 방사선 조사장치의 특성 및선질 평가에 대한 연구
A Study on the Characterization and Quality Evaluation of Radiation Irradiation System for Construction of Reference Radiation Field
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초록
The institution using radiation must have radiation protection equipment under the law,but they must calibrate the equipment in a foreign country. Also, a company related to equipmentdevelopment carries out performance evaluations in a foreign country because equipment performanceevaluations and certification systems are inadequate in the Republic of Korea. Therefore, this studyaims to review the international standard for reference radiation field and assess the suitability of theradiation irradiation system constructed in KARA (Korean Association for Radiation Application). Firstly,we deducted the technical criteria by analyzing international standard documents (ISO 4037-1, IEC 61267). Secondly, we checked whether the radiation irradiation system is suitable for international standardcriteria by characterization assessment. Based on these results, we judged that the radiation irradiationsystem could be used to establish a reference radiation field. Finally, using the radiation irradiationsystem, we built the reference radiation (gamma-ray and X-ray) through the half-value layer test,homogeneity coefficient assessment, and so on. It is expected that reference radiation fields constructedthrough this study will be used in performance evaluation for radiation protection equipment andcontribute to creating the radiation irradiation infrastructure by building additional reference radiationfields. Also, we expect that it will be possible to secure the technology to calibrate and test for radiationinstruments based on the international standard through further research using the radiation irradiationsystem.
Abstract
The institution using radiation must have radiation protection equipment under the law,but they must calibrate the equipment in a foreign country. Also, a company related to equipmentdevelopment carries out performance evaluations in a foreign country because equipment performanceevaluations and certification systems are inadequate in the Republic of Korea. Therefore, this studyaims to review the international standard for reference radiation field and assess the suitability of theradiation irradiation system constructed in KARA (Korean Association for Radiation Application). Firstly,we deducted the technical criteria by analyzing international standard documents (ISO 4037-1, IEC 61267). Secondly, we checked whether the radiation irradiation system is suitable for international standardcriteria by characterization assessment. Based on these results, we judged that the radiation irradiationsystem could be used to establish a reference radiation field. Finally, using the radiation irradiationsystem, we built the reference radiation (gamma-ray and X-ray) through the half-value layer test,homogeneity coefficient assessment, and so on. It is expected that reference radiation fields constructedthrough this study will be used in performance evaluation for radiation protection equipment andcontribute to creating the radiation irradiation infrastructure by building additional reference radiationfields. Also, we expect that it will be possible to secure the technology to calibrate and test for radiationinstruments based on the international standard through further research using the radiation irradiationsystem.
참고문헌 (11)
- RI Utilization in 2020, "Survey on the status of Radiation", pp.2022, Koran Association for Radiation Application
- International Organization for Standardization, "Radiological protection - X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 1: Radiation characteristics and production methods (ISO 4037-1)", ~ (2019)
- International Organization for Standardization, "Radiological protection - X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 2: Dosimetry for radiation protection over the energy ranges from 8 keV to 1,3 MeV and 4 MeV to 9 MeV (ISO 4037-2)", ~ (2019)
- International Organization for Standardization, "Radiological protection - X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 3: Calibration of area and personal dosemeters and the measurement of their response as a function of energy and angle of incidence (ISO 4037-3)", ~ (2019)
- International Organization for Standardization, "Radiological protection - X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 4: Calibration of area and personal dosemeters in low energy X reference radiation fields (ISO 4037-4)", ~ (2019)
- Korean Agency for Technology and Standard, "X and gamma radiation - Indirect - or direct - reading Capacitor-type pocket dosemeters (KS A ISO 11934)", ~ (2020)
- International Electrotechnical Commission, "Radiation protection instrumentation - Installed dose rate meters, warning assemblies and monitors - X and gamma radiation of energy between 50 keV and 7 MeV (IEC 60532)", ~ (2010)
- International Electrotechnical Commission, "Radiation protection instrumentation - Ambient and", or directional dose equivalent (rate) meters and, pp.2009, ~
- International Electrotechnical Commission, "Medical diagnostic X-ray equipment - Radiation conditions for use in the determination of characteristics (IEC 61267)", ~ (2005)
- International Electrotechnical Commission, "Protective devices against diagnostic medical X-radiation - Part 1: Determination of attenuation properties of materials (IEC 61331-1)", ~ (2014)
- International Electrotechnical Commission, "Radiation protection instrumentation - Measurement of personal dose equivalents Hp(10) and Hp(0,07) for X, gamma, neutron and beta radiations - Direct reading personal dose equivalent meters (IEC 61526)", ~ (2010)