Repository logo
 
Publication

Ionometric and fricke electron and gamma dosimetry for the implementation of waste water treatment by radiation in Portugal

2005-09Conference object Restricted access
Simple item page
dc.contributor.authorFerreira, P.
dc.contributor.authorJacob, K.
dc.contributor.authorRosat, M.
dc.contributor.authorGalhós, R.
dc.contributor.authorSerrai, F.
dc.contributor.authorOliveira, S.
dc.contributor.authorTeixeira, Nuno
dc.contributor.authorRamalho, M.
dc.date.accessioned2018-12-31T00:13:33Z
dc.date.available2018-12-31T00:13:33Z
dc.date.issued2005-09
dc.description.abstractApplication of radiation as an efficient process to reduce the microbial levels in materials (food, environmental, health care products). Irradiation of organic and inorganic compounds with electron and gamma rays can modify the micro organisms, depending on the energy, dose rate, and others variables related to the irradiation conditions. Anthropogenic sources have been responsible for introducing high levels of chemical elements and compounds into the environment, many of this through the industrial waste waters. This is an issue of global concern, with potential impact on human health and the environment. IAEA recognizes the potentiality of radiation technology to clean up waste discharges, and since 2003 IAEA participate in this project. Although this is a multidisciplinary project, by the physical point of view the main objective is to characterize the most efficient electron (by intercomparison with gamma) beam, obtaining the better irradiation geometry, to implement waste water (originated in hospitals, food industry ...) treatments. Until now, we've characterized electron beams with Ionometric and fricke dosimetry at non-standard irradiation conditions, in commercial Linacs for radiotherapy purposes. We used a Varian Clinac 2100 CD, with the special TBI ETRAY conditions and nominal dose rate of 1000 UM/min, and an Elekta Digital Precise with nominal dose rate of 400 UM/min. The better dose rates obtained in water were approximately equal to 1.4 kGy/h and 0.7 kGy/h, respectively. The impact of the radiation has been studied microbiologically, toxicologically and chemically, and the evaluation between this kind of radiation and cobalt gamma radiation is also carried out at the same time. The results obtained until know and the continuous support of the IAEA experts in the project, indicates that this project will contribute to a better quality of the Portuguese industrial or hospital complexes, minimising the impact of pollutants on the environment.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFerreira P, Jacob K, Rosa M, Galhos R, Serra F, Teixeira N, et al. Ionometric and fricke electron and gamma dosimetry for the implementation of waste water treatment by radiation in Portugal. Radiother Oncol. 2005;76(Suppl 2):S206.pt_PT
dc.identifier.doi10.1016/S0167-8140(05)81455-0pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/9237
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0167814005814550?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectRadiotherapypt_PT
dc.subjectDosimetrypt_PT
dc.subjectWaste water treatmentpt_PT
dc.subjectPortugalpt_PT
dc.titleIonometric and fricke electron and gamma dosimetry for the implementation of waste water treatment by radiation in Portugalpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.endPageS206pt_PT
oaire.citation.issueSuppl. 2pt_PT
oaire.citation.startPageS206pt_PT
oaire.citation.titleRadiotherapy and Oncologypt_PT
oaire.citation.volume76pt_PT
rcaap.rightsrestrictedAccesspt_PT
rcaap.typeconferenceObjectpt_PT

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Ionometric and fricke electron and gamma dosimetry for the implementation of waste water treatment by radiation in Portugal.pdf
Size:
104.05 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESTeSL - Posters