Abstract: A beam filter positioning device includes a first and a second axes operable to move a body supporting one or more collimators, one or more photon flattening filters, one or more electron foils, and field light mirror etc. The collimators may be configured to collimate radiation to define a treatment beam suitable for radiosurgery. A controller is programmed to control the servo motor of the first and second axes to accurately position the beam filters. Radiation apparatuses and systems incorporating the beam filter positioning device or assembly are also provided.

Abstract: A beam filter positioning device includes a first and a second axes operable to move a body supporting one or more collimators, one or more photon flattening filters, one or more electron foils, and field light mirror etc. The collimators may be configured to collimate radiation to define a treatment beam suitable for radiosurgery. A controller is programmed to control the servo motor of the first and second axes to accurately position the beam filters. Radiation apparatuses and systems incorporating the beam filter positioning device or assembly are also provided.

Abstract: An X-ray target assembly includes a substrate, a target supported by the substrate adapted to generate X-rays when impinged by an electron beam, and an enclosure over the target providing a volume for the target. The enclosure is made of a material substantially transparent to electrons. The volume is substantially vacuum or filled with an inert gas.

Abstract: An X-ray target assembly includes a substrate, a target supported by the substrate adapted to generate X-rays when impinged by an electron beam, and an enclosure over the target providing a volume for the target. The enclosure is made of a material substantially transparent to electrons. The volume is substantially vacuum or filled with an inert gas.

Abstract: An X-ray target assembly includes a substrate, a target supported by the substrate adapted to generate X-rays when impinged by an electron beam, and an enclosure over the target providing a volume for the target. The enclosure is made of a material substantially transparent to electrons. The volume is substantially vacuum or filled with an inert gas.

Abstract: A stationary target anode of an X-ray device is provided, having stepped high Z button configuration. By minimizing the diameter of the central, X-ray producing section of the button, and incorporating a thin lip extending therefrom to a diameter approximately twice that of the central portion, internal and interface stresses are minimized. A flexible structure is also provided to support the button/substrate assembly and provide minimal resistance as the substrate radially expands during heating, thereby minimizing induced stress on the target and preventing fatigue and failure of the support target.