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Assessment of occupational internal exposure to beta emitters from the nuclear reactor primary coolant circuit

100%
Pliszczyński T., Ciszewska K., Dymecka M., Ośko J., Haratym Z.
Polish Journal of Medical Physics And Engineering
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2012
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vol. 18
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issue 2
41-47
EN
Fission products of 235U or isotopes from activation may appear in technological waters at normal operation of a research reactor. Therefore, reactor cooling water may contain a number of beta radioactive isotopes including yttrium and strontium isotopes, which can pose potential hazard to reactor personnel. In order to asses internal exposure urinalysis is carried out. This work presents the method of sample preparation and measurement used by Radiation Protection Measurements Laboratory (RPLM) of the National Centre for Nuclear Research (NCNR). Method of various isotopes of yttrium and Sr-90 activity calculation is also shown. Determination of these isotopes activities in urine sample allows estimating the effective doses
2
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Estimation of internal radiation exposure using a whole body counter

86%
Pliszczyński T., Ośko J., Ciszewska K., Haratym Z., Umaniec M., Sosnowiec R.
Polish Journal of Medical Physics And Engineering
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2011
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vol. 17
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issue 4
163-171
PL
Proces oceny narażenia wewnętrznego na skażenia substancjami promieniotwórczymi jest skomplikowany i towarzyszy mu wiele czynników, które są źródłem niepewności szacowania obciążającej dawki efektywnej. W niniejszym artykule przedstawiono sposób właściwego postępowania podczas szacowania obciążającej dawki efektywnej za pomocą Licznika Promieniowania Ciała Człowieka.
EN
Estimation of internal radiation exposure using a whole body counter
3
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Validation of the method for determination of plutonium isotopes in urine samples and its application in a nuclear facility at Otwock

86%
Rzemek K., Czerwiński A., Dymecka M., Ośko J., Pliszczyński T., Haratym Z.
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issue 1
181-186
EN
The studies aimed at determining low activities of alpha radioactive elements are widely recognized as essential for the human health, because of their high radiotoxicity in case of internal contamination. Some groups of workers of nuclear facility at Otwock are potentially exposed to contamination with plutonium isotopes. For this reason, the method for determination of plutonium isotopes has been introduced and validated in Radiation Protection Measurements Laboratory (LPD) of the National Centre for Nuclear Research (NCBJ). In this method the plutonium is isolated from a sample by coprecipitation with phosphates and separated on a AG 1-X2 Resin. After electrodeposition, the sample is measured by alpha spectrometry. Validation was performed in order to assess parameters such as: selectivity, accuracy (trueness and precision) and linearity of the method. The results of plutonium determination in urine samples of persons potentially exposed to internal contamination are presented in this work.
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