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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Espectrômetro de elétrons para medidas de coeficientes de conversão interna

Suita, Julio Cezar, Instituto de Engenharia Nuclear 07 1900 (has links)
Submitted by Marcele Costal de Castro (costalcastro@gmail.com) on 2017-09-27T17:16:35Z No. of bitstreams: 1 JULIO CEZAR SUITA M.pdf: 2924590 bytes, checksum: 3ca6a9332bf5826ee588b62312ae0320 (MD5) / Made available in DSpace on 2017-09-27T17:16:35Z (GMT). No. of bitstreams: 1 JULIO CEZAR SUITA M.pdf: 2924590 bytes, checksum: 3ca6a9332bf5826ee588b62312ae0320 (MD5) Previous issue date: 1982-07 / Foram feitas a recuperação e modificações num espectrômetro de elétrons do tipo solenoidal equipado com um detector semicondutor de Si(Li), que tornaram possível a sua utilização em medidas de coeficientes de conversão interna de transições provenientes do decaimento de nuclídeos de meia-vida de até um segundo. Após estas modificações, mediram-se os coeficientes de conversão interna das transições de 148 KeV e 329 KeV do decaimento do 92 TC, e de 263 KeV e 391 KeV do decaimento do 93m Mo e 9 3 m Tc respectivamente. / Improvements were made on a solenoidal electron spectrometer equiped with a Si(Li) semiconductor detector, in order to use it in internal conversion coefficients measurements of transitions following the decay of nuclides with half-life as short as one second or even lower. After such improvements, the internal conversion coefficients of the transitions of 148 KeV and 329 KeV in the decay of 92 Tc, and 263 KeV and 391 KeV in the decay of 93m Mo and 93m Tc respectively, were measured

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