Measurement of activity of the predominant gamma-emitting radionuclides in activated components of a medical cyclotron plan

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Abstract

An identification and activity evaluation of the predominant gamma-emitting radionuclides in activated parts of a medical cyclotron plant by high resolution gamma-ray spectrometry were performed. The use of LaBr3:Ce scintillation and HPGe detectors was examined in order to solve the measurement problems due to high activity of some components used inside a plant provided with an IBA CYCLONE 18/9 cyclotron. For each component, the identification of some key-radionuclides allows to evaluate the surface dose behaviour as function of decay time. The largest activity values are related to radionuclides with half-life of 70-80 days, while radionuclides with higher half-lives represent less than 10 per cent of the total activity. The surface dose rate will be reduced to about 1/1000 of the starting value after a decay period of approximately 3 years, with a relatively safety at product disposal work.
Lingua originaleEnglish
Stato di pubblicazionePublished - 2008

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radioactive isotopes
cyclotrons
half life
dosage
disposal
decay
scintillation
safety
gamma rays
evaluation
high resolution
detectors
products
spectroscopy

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title = "Measurement of activity of the predominant gamma-emitting radionuclides in activated components of a medical cyclotron plan",
abstract = "An identification and activity evaluation of the predominant gamma-emitting radionuclides in activated parts of a medical cyclotron plant by high resolution gamma-ray spectrometry were performed. The use of LaBr3:Ce scintillation and HPGe detectors was examined in order to solve the measurement problems due to high activity of some components used inside a plant provided with an IBA CYCLONE 18/9 cyclotron. For each component, the identification of some key-radionuclides allows to evaluate the surface dose behaviour as function of decay time. The largest activity values are related to radionuclides with half-life of 70-80 days, while radionuclides with higher half-lives represent less than 10 per cent of the total activity. The surface dose rate will be reduced to about 1/1000 of the starting value after a decay period of approximately 3 years, with a relatively safety at product disposal work.",
keywords = "Cyclotron; induced activity; gamma-ray spectrometry",
author = "Salvatore Rizzo and Tomarchio, {Elio Angelo} and Pietro Guarino",
year = "2008",
language = "English",

}

TY - CONF

T1 - Measurement of activity of the predominant gamma-emitting radionuclides in activated components of a medical cyclotron plan

AU - Rizzo, Salvatore

AU - Tomarchio, Elio Angelo

AU - Guarino, Pietro

PY - 2008

Y1 - 2008

N2 - An identification and activity evaluation of the predominant gamma-emitting radionuclides in activated parts of a medical cyclotron plant by high resolution gamma-ray spectrometry were performed. The use of LaBr3:Ce scintillation and HPGe detectors was examined in order to solve the measurement problems due to high activity of some components used inside a plant provided with an IBA CYCLONE 18/9 cyclotron. For each component, the identification of some key-radionuclides allows to evaluate the surface dose behaviour as function of decay time. The largest activity values are related to radionuclides with half-life of 70-80 days, while radionuclides with higher half-lives represent less than 10 per cent of the total activity. The surface dose rate will be reduced to about 1/1000 of the starting value after a decay period of approximately 3 years, with a relatively safety at product disposal work.

AB - An identification and activity evaluation of the predominant gamma-emitting radionuclides in activated parts of a medical cyclotron plant by high resolution gamma-ray spectrometry were performed. The use of LaBr3:Ce scintillation and HPGe detectors was examined in order to solve the measurement problems due to high activity of some components used inside a plant provided with an IBA CYCLONE 18/9 cyclotron. For each component, the identification of some key-radionuclides allows to evaluate the surface dose behaviour as function of decay time. The largest activity values are related to radionuclides with half-life of 70-80 days, while radionuclides with higher half-lives represent less than 10 per cent of the total activity. The surface dose rate will be reduced to about 1/1000 of the starting value after a decay period of approximately 3 years, with a relatively safety at product disposal work.

KW - Cyclotron; induced activity; gamma-ray spectrometry

UR - http://hdl.handle.net/10447/48653

UR - http://www.irpa12.org.ar/fullpapers/FP2893.pdf

M3 - Paper

ER -