The impact of selected factors on the exposure of hands of workers during handling radiopharmaceuticals in nuclear medicine in the Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F16%3A00306641" target="_blank" >RIV/68407700:21460/16:00306641 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The impact of selected factors on the exposure of hands of workers during handling radiopharmaceuticals in nuclear medicine in the Czech Republic

Original language description

The paper analyses the effects of basic factors, such as the technological equipment, the maintaining of operating procedures and the duration of practice on the size of the local exposure of workers’ hands. Material and method: In order to determine the maximum exposure to the skin in terms of the personal dose equivalent Hp(0.07), thermoluminescent dosimeters (TLDs) were used in specific positions where higher exposure was normally expected and also in the position where finger dosimeters are usually worn. So far, some 176 measurements in 29 persons from PET centres in the Czech Republic have been carried out. All these centres were equipped with different technological equipment and different procedures for the administration of radiopharmaceuticals were also used. During the measurements video shots were taken; based on these shots risky operations were identified. Results: From the comparison and confrontation of the personal dose equivalent - Hp(0,07) - received by individual workers, it appeared that to a large extent the exposure could be reduced by means of the automatic application of certain procedures (using a cannula), where the average exposure at the relevant workplaces monitored was lower by 3-7 times than in the case of manual administration (when a cannula was not used). In the absence of the shielding on syringes when radiopharmaceuticals are applied manually, the exposure may be much higher, namely almost 10 times higher (this exposure was around 8 mSv/GBq) compared to average exposure with the shielding. As to the duration of practice, at the beginning of work the exposure is relatively higher than later, when the workers acquire some experience and the skill. However, after some years the exposure tends to go up, mainly due to declining caution after several years of repeated routine operations.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

AQ - Safety and health protection, safety in operating machinery

OECD FORD branch

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Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů