As part of the design of the vacuum system of a new Synchrotron Light Source for Brazil – SIRIUS, the Vacuum Group from the Brazilian Synchrotron Light Laboratory (LNLS) proposed the pumping speed study of a sputter ion pump element assembled inside the vacuum chamber. This configuration aims to reduce components attached to the chamber enabling an easier alignment procedure and a conductance enhancement to pumped gases. The study was carried out by experimental measurements and numerical simulations using Monte Carlo method.
The measurements and Monte Carlo calculations results presented a good agreement, with errors less than 10%. Further, inserting the element in the vacuum chamber enhanced maximum pumping speed when compared with the manufacturer’s data, due to the conductance’s increase for gases.
Biografia do Autor
Rafael Seraphim, Laboratório Nacional de Luz Sincrotron
Grupo de Vácuo do Laboratório Nacional de Luz Sincrotron