Data/hora: 05/06/2024 11:58:36

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 22/12/1999
Data da última atualização: | 03/03/2010
Autoria: | CESAREO, R.; APPOLONI, C. R.; BRUNETTI, A.; CASTELLANO, A.; CRUVINEL, P. E.; DE ASSIS, J. T.; GIGANTE, G. E.; MASCARENHAS, S.
Afiliação: | Universita di Roma "La Sapienza", Centro D'Ingigneria Biomedica; UEL-Depto. Fisica; Informez S.p.A.; Universita di Lecce; EMBRAPA-CNPDIA; UFRJ-COPPE.
Título: | Industrial applications of tomography and microtomography.
Ano de publicação: | 1994
Fonte/Imprenta: | In: INTERNATIONAL SYMPOSIUM ON COMPUTERIZED TOMOGRAPHY FOR INDUSTRIAL APPLICATIONS, June 1994, Berlin, Alemanha. Proceedings... Berlin: Bundesministerium des Innern, 1994.
Páginas: | p.295-302.
Idioma: | Inglês
Conteúdo: | Various CT-scanners have been designed and built at the University of Rome "La Sapienza" since 1980, also in cooperation with the Research Center EMBRAPA-NPDIA, Sao Carlos, S.P., Brazil, and with the financial support of the European Communities. These CT-scanners were mainly devoted to non-medical applications (soil physics, archaeometry, industrial applications) or to test new imaging methods (differential tomography, microtomography, XRF-tomography and so on). Besides the first CT-scanner, constructed in 1980, and the Sao Carlos scanner, constructed in 1986, both characterized by an Am241 source emitting 60keV radiation, and by non-sophisticated mechanics, the more recent scanners consist of: -a X-ray tube of 160kV and 10mA for tomographs of large objects (approximately from 1cm to 40cm diameter) and a X-ray tube of 50kV and 30mA for tomogra[hs of small objects or microtomographs (approximately from few mm to 1cm); -a sophisticated translation-rotation system, able to make movements with micrometer precision; -a single X-ray detector, such as Nal(TI)-scintillator, or a Si-PIN photodiode, or a HpGe for special applications where a high energy resolution is required, or -a multidetector system, such as an image intensifier for images of large objects, or a photodiode-array, for microtomography; various types of PC's, of the 286 and 486 type, for both driving the mechanics, andcollecting the transmission data, and for image reconstruction and filtering...
Palavras-Chave: | Applications; CT-scanners; Microtomografia; Microtomography.
Thesagro: | Indústria; Tomografia.
Thesaurus Nal: | industry; tomography.
Categoria do assunto: | --
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (5369-1) - UPC - SP - -- - PROCI-94.00016 -  - 1994.00016 - DIS