Kansas State University Research Foundation

Hideya Koizumi

Kenichiro Saito

The system effectively manipulates the operation of a charged particle flow device by approximating the total force on each ion during a trajectory calculation. The system applies the method in massively parallel general-purpose computing with GPU (GPGPU) to test its performance in simulations with thousands to over a million ions. The method calculates the forces on an ion using ions within an active region near the ion of interest. To decrease computation time, the method approximates the forces by calculating the ion-ion interactions within a first zone and the ion-ion cloud interactions within a second zone. The system adjusts settings of the charged particle flow device to affect the flow and positioning of the charged particles. Such setting may include adjusting the positioning of the charged plates, adjusting the voltage of the plates, and adjusting the pressure within the charged particle flow device.

System for controlling and directing the flow of a charged particle through a device

The invention is essentially a sequential ('DMA') apparatus using a novel arrangement of at least three electrodes and at least two block electrodes to produce a DMA apparatus having at least two sequential DMA regions between pairs of adjacent electrode walls within the same housing. This apparatus is used to improve the transfer of particles into the subsequent DMA region without a vacuum or pump, and to improve the separation of target particles from non-target particles and concentration and collection of the target particles.

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Jonesboro, AR, United States of America

Hideya Koizumi