Monte Carlo simulations of risky non-standard operations during handling radiopharmaceuticals

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Monte Carlo simulations of risky non-standard operations during handling radiopharmaceuticals

Popis výsledku v původním jazyce

The aim of this work is to introduce an identifying the non-standard risky operations and determining the values of personal dose equivalent Hp(0,07) at the point of maximum exposure on hands. Materials and methods: The non-standard risky operations have been identified by interviews with staff, by control of video records or by reading of personal ring dosimeter. The MCNPX code and three voxel phantoms simulating various hand operations were used for searching of locality on hand with point of maximum exposure. Validation of MCNPX simulations of the voxel phantoms were performed in comparison with experiments with the physical phantoms. The thermoluminescent dosimeters of type MCP-Ns for measurements of the dose equivalent Hp (0.07) were used. Results: The proposed method for identification of the non-standard risky operations during the administration to patient the liquid 131I in cup and 18F-FDG in syringe has been used. The MC simulations of voxel phantom of hand holding unshielded syringe with 18F-FDG have shown significant (more than 4- fold ) increase of the dose Hp (0.07) on the hands at the points of maximum exposure that were in different localities than these that were monitored by TLD. By simulations of the voxel phantom of the hand has been shown to penetrating of 18F positrons through walls of unshielded syringe with 18F-FDG and the contribution of positron dose to hand irradiation was determined. Similarly, the contribution to the local electron irradiation of the skin in the palm handling unshielded cup with 131I was calculated.

Název v anglickém jazyce

Monte Carlo simulations of risky non-standard operations during handling radiopharmaceuticals

Popis výsledku anglicky

The aim of this work is to introduce an identifying the non-standard risky operations and determining the values of personal dose equivalent Hp(0,07) at the point of maximum exposure on hands. Materials and methods: The non-standard risky operations have been identified by interviews with staff, by control of video records or by reading of personal ring dosimeter. The MCNPX code and three voxel phantoms simulating various hand operations were used for searching of locality on hand with point of maximum exposure. Validation of MCNPX simulations of the voxel phantoms were performed in comparison with experiments with the physical phantoms. The thermoluminescent dosimeters of type MCP-Ns for measurements of the dose equivalent Hp (0.07) were used. Results: The proposed method for identification of the non-standard risky operations during the administration to patient the liquid 131I in cup and 18F-FDG in syringe has been used. The MC simulations of voxel phantom of hand holding unshielded syringe with 18F-FDG have shown significant (more than 4- fold ) increase of the dose Hp (0.07) on the hands at the points of maximum exposure that were in different localities than these that were monitored by TLD. By simulations of the voxel phantom of the hand has been shown to penetrating of 18F positrons through walls of unshielded syringe with 18F-FDG and the contribution of positron dose to hand irradiation was determined. Similarly, the contribution to the local electron irradiation of the skin in the palm handling unshielded cup with 131I was calculated.

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