Articles liés à Small ionization chamber: for high dose measurements

Small ionization chamber: for high dose measurements - Couverture souple

De Araujo Rodrigues Junior, Ary

 
9783639296167: Small ionization chamber: for high dose measurements
Couverture souple
ISBN 10 : 3639296168 ISBN 13 : 9783639296167
Editeur : VDM Verlag Dr. Müller, 2010

Synopsis

Industrial gamma irradiators are designed for processing large amounts of products, which are exposed to large gamma radiation doses. The irradiation, in industrial scale, is usually carried out in a dynamic form, where products go around a Co-60 gamma source with activity of about PBq (MCi). In some situations (research purposes or validation process according to norm ISO 11137), it is required to irradiate small samples within fractional deliver doses. Samples are placed inside the irradiation room at a fixed distance from the source and the dose is usually determined by using dosimeters, therefore the dose is only known after completed the irradiation. Usually different kinds of products with different densities go through between the source and static position samples. So, the dose rate varies in function of product density. A suitable methodology would be to monitor samples dose in real time, which would improve dose accuracy, avoiding the overdose. A cylindrical 0.9 cm3 ionization chamber has been developed for high-doses real-time monitoring, when the sample is being irradiated at a static position in a Co-60 gamma industrial plant.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Industrial gamma irradiators are designed for processing large amounts of products, which are exposed to large gamma radiation doses. The irradiation, in industrial scale, is usually carried out in a dynamic form, where products go around a Co-60 gamma source with activity of about PBq (MCi). In some situations (research purposes or validation process according to norm ISO 11137), it is required to irradiate small samples within fractional deliver doses. Samples are placed inside the irradiation room at a fixed distance from the source and the dose is usually determined by using dosimeters, therefore the dose is only known after completed the irradiation. Usually different kinds of products with different densities go through between the source and static position samples. So, the dose rate varies in function of product density. A suitable methodology would be to monitor samples dose in real time, which would improve dose accuracy, avoiding the overdose. A cylindrical 0.9 cm3 ionization chamber has been developed for high-doses real-time monitoring, when the sample is being irradiated at a static position in a Co-60 gamma industrial plant.

Biographie de l'auteur

Doctor and Master in Nuclear Technology (Nuclear and Energy Research Institute), Bachelor of Physics (Physics Institute) from University of Sao Paulo (Brazil). He has wide experience in radiation protection, high dose dosimetry and irradiation processing. He is at present a professor at University of Maringa and a gamma irradiator consultant.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2010
Langue
anglais
ISBN 10 
3639296168
ISBN 13 
9783639296167
Reliure
Broché
Nombre de pages
112
Coordonnées du fabricant
non disponible
Personne responsable
non disponible