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Development of an irradiation system for a small size continuous run multipurpose gamma irradiator; Desenvolvimento do sistema de irradiacao em um irradiador multiproposito de cobalto-60 tipo compacto

Abstract

The Radiation Technology Center from Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN/SP), Brazil, developed with a revolutionary design and national technology, a small size continuous run and multipurpose industrial gamma irradiator, to be used as a demonstration facility for manufacturers and contract service companies, which need economical and logistical in-house irradiation system alternatives. Also, to be useful for supporting the local scientific community on development of products and process using gamma radiation, assisting the traditional and potential users on process validation, training and qualification of operators and radioprotection officers. The developed technology for this facility consists of continuous tote box transport system, comprising a single concrete vault, where the automated transport system of products inside and outside of the irradiator utilizes a rotate door, integrated with the shielding, avoiding the traditional maze configuration. Covering 76 m{sup 2} of floor area, the irradiator design is product overlap sources and the maximum capacity of cobalt-60 wet sources is 37 P Bq (1 MCi). The performed quantification program of this multipurpose irradiator was based on AAMI/ISO 11137 standard, which recommends the inclusion of the following elements: installation and process quantification. The initial load of the multipurpose irradiator was 3.4 P Bq (92.1 k  More>>
Publication Date:
Jul 01, 2005
Product Type:
Thesis/Dissertation
Report Number:
INIS-BR-5653
Resource Relation:
Other Information: TH: Tese (Ph.D.); 56 refs., 63 figs., 16 tabs
Subject:
07 ISOTOPES AND RADIATION SOURCES; COBALT; COBALT 60; GAMMA RADIATION; GAMMA SOURCES; INDUSTRIAL PLANTS; IRRADIATION; IRRADIATION DEVICES; IRRADIATION PLANTS; METHACRYLIC ACID ESTERS; MOCKUP; MODULAR STRUCTURES; PHOTONS; RADIATION SOURCES
OSTI ID:
21216081
Research Organizations:
Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
TRN: BR09V2593084780
Availability:
Available from INIS in electronic form
Submitting Site:
BRN
Size:
178 pages
Announcement Date:
Oct 17, 2009

Citation Formats

Calvo, Wilson Aparecido Parejo. Development of an irradiation system for a small size continuous run multipurpose gamma irradiator; Desenvolvimento do sistema de irradiacao em um irradiador multiproposito de cobalto-60 tipo compacto. Brazil: N. p., 2005. Web.
Calvo, Wilson Aparecido Parejo. Development of an irradiation system for a small size continuous run multipurpose gamma irradiator; Desenvolvimento do sistema de irradiacao em um irradiador multiproposito de cobalto-60 tipo compacto. Brazil.
Calvo, Wilson Aparecido Parejo. 2005. "Development of an irradiation system for a small size continuous run multipurpose gamma irradiator; Desenvolvimento do sistema de irradiacao em um irradiador multiproposito de cobalto-60 tipo compacto." Brazil.
@misc{etde_21216081,
title = {Development of an irradiation system for a small size continuous run multipurpose gamma irradiator; Desenvolvimento do sistema de irradiacao em um irradiador multiproposito de cobalto-60 tipo compacto}
author = {Calvo, Wilson Aparecido Parejo}
abstractNote = {The Radiation Technology Center from Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN/SP), Brazil, developed with a revolutionary design and national technology, a small size continuous run and multipurpose industrial gamma irradiator, to be used as a demonstration facility for manufacturers and contract service companies, which need economical and logistical in-house irradiation system alternatives. Also, to be useful for supporting the local scientific community on development of products and process using gamma radiation, assisting the traditional and potential users on process validation, training and qualification of operators and radioprotection officers. The developed technology for this facility consists of continuous tote box transport system, comprising a single concrete vault, where the automated transport system of products inside and outside of the irradiator utilizes a rotate door, integrated with the shielding, avoiding the traditional maze configuration. Covering 76 m{sup 2} of floor area, the irradiator design is product overlap sources and the maximum capacity of cobalt-60 wet sources is 37 P Bq (1 MCi). The performed quantification program of this multipurpose irradiator was based on AAMI/ISO 11137 standard, which recommends the inclusion of the following elements: installation and process quantification. The initial load of the multipurpose irradiator was 3.4 P Bq (92.1 k Ci) with 13 cobalt-60 sources model C-188, supplied by MDS Nordion Ion Technologies - Canada. For irradiator dose optimization, the source distribution was done using the software Cadgamma developed by IPEN-CNEN/SP. The poly-methylmethacrylate (PMMA) dosimeters system, certified by the International Dose Assurance Service (IDAS) of the International Atomic Energy Agency (IAEA) was used for irradiator dose mapping. The economic analysis, performance concerning to dose uniformity and cobalt-60 utilization efficiency were calculated and compared with other commercial gamma irradiators available in the market. (author)}
place = {Brazil}
year = {2005}
month = {Jul}
}