أعرض تسجيلة المادة بشكل مبسط

dc.creator Oliveira Jr. J. M. de
dc.date 2003
dc.date.accessioned 2013-06-01T10:11:31Z
dc.date.available 2013-06-01T10:11:31Z
dc.date.issued 2013-06-01
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332003000200019
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2003&volume=33&issue=2&spage=273
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/8087
dc.description Computed Tomography (CT) refers to the cross-sectional imaging of an object from both transmission or reflection data collected by illuminating the object from many different directions. CT is an imaging technique that has revolutionized the field of medical diagnostics. There are many others applications for CT images, such as, nondestructive evaluation of industrial products and analysis of biological specimens. A mini computerized tomograph was projected, constructed and tested. It operates with a gamma ray source of 241Am (photons of 60 keV and 100 mCi of intensity) and a NaI(Tl) solid state detector. The system features translation and rotation scanning modes, a 100 mm effective field of view, and 1 mm spatial resolution. The preliminary results indicated a resolution between 5 % to 7 % to detect mass attenuation coefficient variations. The total cost of the Mini Computerized Tomograph of UNISO (MTCU) was about US$ 20.000,00.
dc.publisher Sociedade Brasileira de Física
dc.source Brazilian Journal of Physics
dc.title Project, construction and test of a mini computerized tomograph


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أعرض تسجيلة المادة بشكل مبسط