Microfabricated linear Paul-Straubel ion trap
| DWPI Title: Microfabricated linear Paul-Straubel ion trap for mass spectrometer includes dielectric layer on substrate and parallel inner radio frequency electrodes residing on dielectric layer in single plane with a gap between electrodes |
| Abstract: An array of microfabricated linear Paul-Straubel ion traps can be used for mass spectrometric applications. Each ion trap comprises two parallel inner RF electrodes and two parallel outer DC control electrodes symmetric about a central trap axis and suspended over an opening in a substrate. Neighboring ion traps in the array can share a common outer DC control electrode. The ions confined transversely by an RF quadrupole electric field potential well on the ion trap axis. The array can trap a wide array of ions. |
| Use: Microfabricated linear Paul-Straubel ion trap for mass spectrometer (claimed). |
| Advantage: The ion trap is capable of providing ionization method that enables ionizing many different atomic and molecular species such that all component species in the sample can be ionized for analysis; has ability to trap many target species to enable species identification and determination of relative concentrations of all of the components in the sample; and has ability to trap a large quantity of ions to enable direct detection of the ions, with adequate sensitivity for analysis. |
| Novelty: A microfabricated linear Paul-Straubel ion trap (10-1) comprises substrate having opening; dielectric layer on substrate; and 2 parallel inner radio frequency (RF) electrodes (11, 12) residing on dielectric layer in a single plane with a gap between the RF electrodes and suspended over the opening in the substrate. An RF quadrupole electric field potential well is established on a trap axis in the gap between the RF electrodes when a RF potential is applied to the RF electrodes. |
| Filed: 10/21/2008 |
| Application Number: US2008254932A |
| Tech ID: SD 10520.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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