Hieke A.
Ciphergen Biosystems, Inc., US
Keywords: ANSYS, collisional cooling, GEMIOS, ion source, ion temperature, MALDI, proteomics, simulation
As previously reported the design of advanced ion sources for collisionaly cooled biomolecules required the development of an advanced multi-physics simulation system GEMIOS (Gas and Electromagnetic Ion Optical Simulator). Recent research based on such GEMIOS simulations led to the creation of the term “electro-pneumatic ion optics” since the functionality of considered novel ion-optical devices is in fact based on the superposition of at least two vector fields and one scalar field. Specifically, and in contrast to state-of-the art devices, gas pressure and gas flow velocities are not considered as global quantities but true field solutions are obtained. As a result, collision frequencies and momentum transfer vary spatially. This allows the design a of new class of electro-pneumatic devices in which elements act as electrodes as well as nozzles or wings and in which the balance between electrical and collisional forces varies locally in a controlled fashion.
Journal: TechConnect Briefs
Volume: 3, Technical Proceedings of the 2005 NSTI Nanotechnology Conference and Trade Show, Volume 3
Published: May 8, 2005
Pages: 648 - 651
Industry sectors: Advanced Materials & Manufacturing | Sensors, MEMS, Electronics
Topic: Informatics, Modeling & Simulation
ISBN: 0-9767985-2-2