STUDY OF METROLOGICAL CHARACTERISTICS OF ALPHA RADIATION SOURCES INCLUDED IN THE SECONDARY STANDARD VETU 12-02-01-98

Abstract

The employees of SE "KYIOBLSTANDARTMETROLOGY" carried out a study of the metrological characteristics of alpha-radiation sources with the aim of replacing the set of sources included in the secondary standard of production in 1971 with a new set of α-radiation sources. To conduct research, sources of type 1P9, 2P9, 3P9, 4P9, 5P9, 6P9 were used, providing an activity range from l0 Bk to 106Bk, a set of technical documentation. To determine the characteristics of these radiation sources, appropriate and well-calibrated equipment is required for reliable measurements [2]. Through experimental studies of α-radiation sources, the compliance of their metrological characteristics with the requirements of normative documents and their suitability for use as components of the secondary standard were determined. Experimental studies were conducted with the aim of determining the activity of the sources and the extended uncertainty of α-radiation sources, establishing their quantitative values in accordance with the calibration method MK-IR-02:2020 "Sources of ionizing radiation" and TU 95 417-083 in the sequence

The aim of the scientific work is to study the metrological characteristics of α-radiation sources. It is carried out with the aim of replacing the set of sources included in the secondary standard (manufactured in 1971) with a new set of α-sources. According to the results of experimental studies of α-radiation sources, their suitability for use as part of the secondary standard VETU 12-02-01-98 is determined.

Based on the results of experimental studies, it was established that the metrological characteristics of the set of sources 1P9-6P9 meet the requirements of TU 95477-083, satisfy the requirements of DSTU 3743-98. Therefore, sets of α-radiation sources 1P9-6P9 can be used as measures of α-radiation activity used to complete the secondary standard VETU 12-02-01-98.