Simple induction probe electric field meter for the detection of electrical fields generated by ion-optical electrodes

A simple electric field probe was developed and used to assess the electrical fields produced inside an ion-optical system. When attached to an XYZ translation stage, this induction probe electrometer is capable of spatially mapping the electrical fields generated by a variety of ion-optical arrangements. Measurements of the electrical fields produced by a conventional reflectron consisting of discrete electrodes and monolithic volume and surface conductive polymeric reflectrons are compared. The performance of the system is validated and a correction is introduced to compensate for capacitive coupling between the probe and the electrode system investigated