RESUMO
Herein we describe the measurement of the work function of a metal with advanced equipment based on the field emission retarding potential (FERP) method using a carbon nanotube (CNT) as cathode. The accuracy of the FERP method using a CNT emitter is described and a comparison between measurements of the work functions of aluminum, barium, calcium, gold, and platinum with published data will be presented. Our FERP equipment could be optimized with the aid of particle tracing simulations. These simulations led us to insert a magnetic collimator to improve the collection efficiency at the anode.
RESUMO
Os autores apresentam os resultados obtidos em mamaplastia redutora, utilizando a técnica de Lejour.
The authors report the results of mammaplasty reduction using Lejour procedure.