Abstract: An ion detector includes an entrance aperture for receiving ions, a Faraday cup, an electron multiplier, and an ion beam controller arranged to direct ions received through the entrance aperture. The controller is switchable between a first configuration in which the controller acts such that received ions are detected by the Faraday cup, and a second configuration in which the controller acts such that received ions are detected by the electron multiplier.

Abstract: A housing container includes a front door plate employing spring hinges is hingedly mounted relative to the housing container, wherein the door plate includes a latch plate having a plurality of lock levers to be operated simultaneously and each independently pivotally mounted relative to an interior surface of the door plate, with the lock levers accessed through individual openings directed through the door plate. Upon displacement of the lock levers relative to a sliding lock plate, the lock plate is displaced relative to a latch flange portion within the container by displacement of a lock plate lug slidably mounted through a slot directed through the door plate below the access openings.