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Optimization of 210Po determination in soil

Szaciłowski Grzegorz, Dymecka Małgorzata, Prusińska Maria, Rzemek Katarzyna, Ośko Jakub, Mądry Magdalena, Kostecka Michalina, Araszkiewicz Agnieszka

Nukleonika

2021

Vol. 66, No. 2

75--79

In recent years, naturally occurring radioactive materials (NORM) have become an important topic from the perspective of environmental protection. The list of isotopes that should be monitored in the environment is constantly growing as new amendments to international legislation are introduced. One of the often studied NORM elements is 210Po. In this study, a process of elaborating of a new method of 210Po determination in soil was presented. In the proposed method, several analytical aspects, like the influence of silica decomposition or optimization of an electrode material, were revised. The obtained procedure allows performance of complete radiochemical analysis in a single day, with the chemical efficiency of over 85% and great reduction of costs. Further, the influence of the use of phosphate fertilizers on polonium concentration in soil was also confirmed.

National comparison of methods for determination of radon in water

Mazur Jadwiga, Kozak Krzysztof, Grządziel Dominik, Guguła Szymon, Mroczek Mariusz, Kozłowska Beata, Walencik-Łata Agata, Podgórska Zuzanna, Wołoszczuk Katarzyna, Przylibski Tadeusz A., Kowalska Agata, Domin Elżbieta, Wysocka Małgorzata, Chałupnik Stanisław, Chmielewska Izabela, Długosz-Lisiecka Magdalena, Szajerski Piotr, Chau Nguyen Dinh, Krakowska Paulina, Pliszczyński Tomasz, Ośko Jakub, Dymecka Małgorzata, Mazurek Daria

Nukleonika

2020

Vol. 65, No. 2

77--81

The article describes three interlaboratory experiments concerning 222Rn determination in water samples. The first two experiments were carried out with the use of artificial radon waters prepared by the Laboratory of Radiometric Expertise (LER), Institute of Nuclear Physics, Polish Academy of Sciences in Kraków in 2014 and 2018. The third experiment was performed using natural environment waters collected in the vicinity of the former uranium mine in Kowary in 2016. Most of the institutions performing radon in water measurements in Poland were gathered in the Polish Radon Centre Network, and they participated in the experiments. The goal of these exercises was to evaluate different measurement techniques used routinely in Polish laboratories and the laboratories’ proficiency of radon in water measurements. In the experiment performed in 2018, the reference values of 222Rn concentration in water were calculated based on the method developed at LER. The participants’ results appeared to be worse for low radon concentration than for high radon concentrations. The conclusions drawn on that base indicated the weaknesses of the used methods and probably the sampling. The interlaboratory experiments, in term, can help to improve the participants’ skills and reliability of their results.

Spektrometria całego ciała w Polsce – nauka, medycyna, dozymetria

Ośko Jakub, Kierepko Renata

Inżynier i Fizyk Medyczny

2020

Vol. 9, nr 1

27--30

Spektrometria całego ciała realizowana jest na terenie Polski w oparciu o dwa urządzenia zlokalizowane w Narodowym Centrum Badań Jądrowych w Świerku oraz w Instytucie Fizyki Jądrowej Polskiej Akademii Nauk w Krakowie. Ta technika pomiarowa, stosowana w powiązaniu z odpowiednio przygotowanymi kalibracjami wydajnościowymi (opracowanymi w oparciu o wykorzystanie fantomów antropometrycznych i/lub modeli numerycznych), umożliwia jakościową i ilościową analizę izotopów gamma – promieniotwórczych zdeponowanych w ciele człowieka. Spektrometry całego ciała w Polsce wykorzystywane są do rutynowego monitoringu osób narażonych zawodowo, monitoringu pracowników i pacjentów medycyny nuklearnej oraz ich rodzin, a także badań osób potencjalnie skażonych w wyniku incydentów/zdarzeń jądrowych.

Whole body spectrometry is carried out in Poland based on two devices located in the National Center for Nuclear Research in Świerk and the Institute of Nuclear Physics Polish Academy of Sciences in Krakow. This measuring technique, used together with properly prepared performance calibrations (developed based on anthropometric phantoms and / or numerical models), enables qualitative and quantitative analysis of gamma- radioactive isotopes deposited in the human body. Whole body spectrometers in Poland are used for routine monitoring of occupationally exposed personnel, monitoring of employees and patients in the field of nuclear medicine and their families, as well as research on persons potentially contaminated as a result of nuclear incidents / events.