High voltage feedthrough assembly, time-resolved transmission electron microscope and method of electrode manipulation in a vacuum environment

摘要

A high voltage feedthrough assembly for providing an electric potential in a vacuum environment comprises a flange connector being adapted for a connection with a vacuum vessel, a vacuum-tight insulator tube having a longitudinal extension with a first end facing to the flange connector and a second end being adapted for projecting into the vacuum vessel, and an electrode device coupled to the second end of the insulator tube, wherein the electrode device has a front electrode, including a photocathode or a field emitter tip and facing to the vacuum vessel and a cable adapter for receiving a high-voltage cable, wherein a flexible tube connector is provided for a vacuum-tight coupling of the insulator tube with the flange connector, and a manipulator device is connected with the insulator tube for adjusting a geometrical arrangement of the insulator tube relative to the flange connector.