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Master's Dissertation
DOI
10.11606/D.43.1990.tde-10042015-155559
Document
Author
Full name
Nelson Canzian da Silva
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1990
Supervisor
Committee
Dietzsch, Olacio (President)
Madhavarao, Narayanarao
Vanin, Vito Roberto
Title in Portuguese
UM ESPECTROMETRO "MINI-ORANGE" PARA ELECTRONS
Keywords in Portuguese
Elétrons de conversão
Espectrômetro de elétrons
Instrumentação nuclear
Mini-orange
Abstract in Portuguese
Foi projetado e construído um espectrômetro Mini-Orange (MO) para eléctrons, utilizando imãs planos permanentes e um detector de barreira de superfície. Foram determinadas as funções de transmissão de diferentes configurações do sistema, para energias entre 200-1100 keV. Foi desenvolvido um modelo matemático do sistema, a partir de solução analítica para o campo de um imã plano e da integração numérica da equação de movimento dos eléctrons no campo de MO. As funções de transmissão assim obtidas foram comparadas aos resultados experimentais e mostraram um bom acordo para energias baixas e intermediárias.
Title in English
A mini-orange spectrometer for electrons
Keywords in English
Electron conversion
Electrons spectrometer
Mini-orange
Nuclear instrumentation
Abstract in English
A Mini-Orange spectrometer for electrons was designed and built, using plane permanent magnets and a surface barrier detector. Transmission functions were obtained for various system configurations and for energies between 200-1100 keV. A mathematical model of the system was developed, using the analytical solution for the field of a plane magnet and the numerical integration of the equation of motion of the electrons in the MO magnetic field. The calculated transmission functions were compared to the experimental data, showing a good agreement for low and intermediate energies.
 
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Publishing Date
2015-05-06
 
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