Abstract: According to some embodiments, an electrostatic particle accelerator may include an assembly having a motor and support plate; an acceleration tube; one or more stage assemblies each having an alternator coupled to a common drive shaft, a power supply coupled to one of the plurality of electrodes, and an opening to receive a portion of the acceleration tube; a pressure vessel configured to enclose the acceleration tube when the pressure vessel is fastened to the support plate; and a circulator configured to pump high pressure gas into the pressure vessel. The acceleration tube can include an ion source, an extraction assembly, and a plurality of tube segments each having a plurality of electrodes and one or more power connectors attached to one of the electrodes.

Abstract: A fall restraint system to be incorporated in an existing ladder system where there are ladder stations, each having a platform, a ladder extending up from the platform, a safety cage around an upper portion of the ladder, and a perimeter guard rail. There is a plurality of adjustable fall restraint sections extending from the upper rail member of the guard rail to a lower cage element of the safety cage. The end connecting members and their intermediate restraint members are made adjustable to accommodate different locations and configurations.