Abstract: A connection system includes a shaft, a hollow shaft, a press ring, a first ring fitted onto the hollow shaft, a second ring, a bearing, and a housing part. The hollow shaft is rotatably mounted via the bearing received in the housing part and has an inner conical region. The first ring has a first outer conical region and a second outer conical region. The first outer conical region is positioned against the inner conical region of the hollow shaft and/or at least a partial region of the first outer conical region is arranged radially between the shaft and the hollow shaft. The second ring encloses and/or surrounds the first ring. The press ring touches both a partial region of the radially outer surface of the hollow shaft and at least one partial region of the radially outer surface of the second ring and/or is mounted onto these partial regions.

Abstract: A high-voltage supply unit is provided for a particle beam device. The high-voltage supply unit includes at least one high-voltage cable for feeding a high voltage, and at least one measuring device for measuring the high voltage. The measuring device has at least one first capacitor, and the first capacitor is formed by at least one first section of the high-voltage cable.

Abstract: A high-voltage supply unit is provided for a particle beam device. The high-voltage supply unit includes at least one high-voltage cable for feeding a high voltage, and at least one measuring device for measuring the high voltage. The measuring device has at least one first capacitor, and the first capacitor is formed by at least one first section of the high-voltage cable.