Temperature deformations in the thin-walled quadrupole electrode system with the hyperbolic electrodes
T11N2
V.S. Gurov, M.V. Dubkov, I.N. Romanov, A.V. Nickolaev
Theoretic and experimental investigations of temperature deformations in the thin-walled monoblock-fabricated quadrupole electrode system are described. The mathematic model describing similar deformations is given. It was shown that heating leads to deformation and symmetric shift of all four electrodes. In this case, electrodes retain their form, only the radius of the field changes. Furthermore, thickness of the electrode system does not affect the shift value. It allows the selection of the electrode thickness based only on the required mechanical strength and the required mass of the electrode system. Experiment showing the effect of high temperatures on the form of a mass peak, is described. The obtained results showed that degradation of electric field formed by the electrodes almost did not occur on warming up to 200 °C. So, the proposed construction of the electrode system retain the hyperbolic form of the electrodes on heating and this allows a mass spectrometer to operate at temperature up to 200 °C.
