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

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

AQ - Bezpečnost a ochrana zdraví, člověk – stroj

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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