First principles optimization of mass producible microscaled linear quadrupoles for operation in higher stability regions

摘要

In recent years, there has been a desire to scale down linear quadrupoles. The key advantages of this miniaturization are the portability it enables, and the reduction of pump-power needed due to the relaxation on operational pressure. Various attempts at making linear quadrupoles on the micro-scale were met with varying degrees of success [1]-[3]. Producing these devices required some combination of microfabrication and/or precision machining, and tedious downstream assembly. For miniature quadrupole mass filters to be mass-produced cheaply and efficiently, manual assembly should be removed from the process.