Abstract: A rotary piston tube for an x-ray radiator is provided in which the vacuum housing, accommodating an anode and a cathode and displaceable in rotation, comprises a 360° all-around ray exit window. For optimization of the ray exit window, this is produced according to one of the subsequently stated material specifications: a) a high-temperature steel or a high-temperature chromium and/or nickel alloy, listed in the standard EN 10273 and EN 10302, at a wall thickness between 0.1 to 0.4 mm; b) a titanium material at a wall thickness between 0.2 and 2 mm; and c) a ceramic material at a wall thickness between 1 mm and 5 mm.

Abstract: A rotating anode x-ray tube has a rotating anode contained in a vacuum-sealed housing with a compartment for a cathode projecting from a cover of the housing opposite the rotating anode. To improve the durability, a transition part connecting the compartment with the cover has high-temperature stability that is greater than that of the cover or of the compartment.

Abstract: A high-capacity x-ray tube particularly for use in medical technology in CT apparatuses, has a vacuum housing containing a cathode and a rotatably mounted anode. The anode plate of the anode is connected by a solder connection to the one end of a load-bearing part, the other end of which is attached to the bearing shaft of a drive for placing the anode in rotation. The mechanical strength of the connection location between the anode plate and the load-bearing part is improved by the connection being formed by a positive fit, designed such that the connection surfaces are subjected substantially only to compression given rotation of the anode.

Abstract: A rotating anode x-ray tube has a rotating anode contained in a vacuum-sealed housing with a compartment for a cathode projecting from a cover of the housing opposite the rotating anode. To improve the durability, a transition part connecting the compartment with the cover has high-temperature stability that is greater than that of the cover or of the compartment.

Abstract: A rotary piston tube for an x-ray radiator is provided in which the vacuum housing, accommodating an anode and a cathode and displaceable in rotation, comprises a 360° all-around ray exit window. For optimization of the ray exit window, this is produced according to one of the subsequently stated material specifications: a) a high-temperature steel or a high-temperature chromium and/or nickel alloy, listed in the standard EN 10273 and EN 10302, at a wall thickness between 0.1 to 0.4 mm; b) a titanium material at a wall thickness between 0.2 and 2 mm; and c) a ceramic material at a wall thickness between 1 mm and 5 mm.

Abstract: A high-capacity x-ray tube particularly for use in medical technology in CT apparatuses, has a vacuum housing containing a cathode and a rotatably mounted anode. The anode plate of the anode is connected by a solder connection to the one end of a load-bearing part, the other end of which is attached to the bearing shaft of a drive for placing the anode in rotation. The mechanical strength of the connection location between the anode plate and the load-bearing part is improved by the connection being formed by a positive fit, designed such that the connection surfaces are subjected substantially only to compression given rotation of the anode.

Abstract: An x-ray beam emission window for vacuum tubes and Image Intensifiers, In particular for Megalix® tubes, has a beam-permeable plate and a metallic window frame supporting this plate that can be attached in a wall opening of the vacuum tube. The radiation-permeable plate is a ceramic disc, and the window frame into which the ceramic disc is soldered is formed of a metal adequate for accommodating ceramic expansion.

Abstract: A vacuum casing for a vacuum tube has an X-ray window which is formed of vitreous carbon and is joined to the vacuum enclosure by an active brazing alloy.

Abstract: A vacuum casing for a vacuum tube has an X-ray window which is formed of vitreous carbon and is joined to the vacuum enclosure by an active brazing alloy.

Abstract: According to the invention, an AC-signal is superimposed to a signal on the two lines to be monitored. A signal difference between the signals on each line is compared with the superimposed AC-signal. A short circuit between the two lines to be monitored can thus be detected when the superimposed AC-signal is not present in the signal difference. The frequency of the AC-signal is preferably selected as half of the sampling frequency of a subsequent sampling means. In a measuring bridge, the short circuit detection unit is coupled to a first and a second measuring point of the bridge.

Abstract: A vacuum housing is provided for an electron tube having an anode and a cathode, the vacuum housing having a region containing a volume for the acceptance of the anode that is connected to a chamber for the acceptance of the cathode via a shaft-shaped housing section made of weldable material. A first part of the shaft-shaped housing section is integrally formed with a portion of housing which contains the volume for the acceptance of the anode. A second part of the shaft-shaped housing section is integrally formed with the chamber for the acceptance of the cathode. A laser weld connects the first and second parts of the shaft-shaped housing section together vacuum-tight.

Abstract: A system for measuring a blood parameter, such as pH, pCO.sub.2 or pO.sub.2, comprises an optical probe with an optical fiber and an invasive blood sensor. Light emitted by a light-emitting diode (1) is irradiated into an optical fiber (2). The system compensates for variations in the luminous efficiency of the LED (1) in that either a fraction of the light is fed directly to a photodetector (22), or in that the forward voltage of the LED is measured, and in that the signal received from the sensor is either normalized, or in that the LED drive current is adjusted accordingly.

Abstract: A method is used for processing signals, particularly for oximetric measurements on living human tissue. Spurious signals are suppressed with respect to information signals. The spurious signals have a frequency lying in a first frequency range, and the information signals have a frequency lying in a second frequency range being different from said first frequency range. The signals are conducted over a filter having essentially a blocking characteristic in said first frequency range and having essentially a transmission characteristic in said second frequency range. An output signal of the filter is further processed.In order to eliminate distorting effects from the filter on the information signal, a first function is determined representing the deviation of the frequency response of the filter in said frequency range from an ideal transmission characteristic. A second function inverted with respect to said first function is generated.

Abstract: The chassis of a recording and/or reproducing apparatus such as a record player is mounted to a fixed structure such as a housing of the apparatus by one or more suspension devices. The chassis, parts carried thereby and the suspension device or devices are arranged to form an oscillatory system in which the vertical and the horizontal oscillating movements are decoupled from each other so that the three orthogonal oscillation directions or directions of movement do not mutually influence each other.

Abstract: A pick-up arm assembly for a record player comprises a pick-up arm mounting, a counterbalance device which includes a counterweight and which is mounted to the pick-up arm mounting so as to be pivotable about vertical and horizontal axes, and a pick-up arm comprising a tube having sound pick-up means disposed at one end and an insert fitting means disposed at the other end. The insert fitting means is capable of being received by the counterbalance device to enable the pick-up arm to be removably fitted to the counterbalance device. The counterweight is mounted in the counterbalance device so that it is substantially horizontally displaceable with respect to the horizontal pivot axis, and adjusting means is arranged at the end of the pick-up arm remote from the sound pick-up means to enable substantially horizontal displacement of the counterweight to be effected when the insert fitting means is fitted to the counterbalance device.