Abstract: A combined transmission/emission tomography apparatus for generation of tomographic slice images of an examination subject (preferably of a patient), has a supporting structure composed of a stationary stator and a rotor that rotates in operation, with at least one radiation-emitting device and at least one radiation-detecting device mounted on the rotor. The at least one radiation-emitting device and the at least one radiation-detecting device are primary components, and the apparatus has at least one associated supply component for one or more of the primary components. In the rotor all primary components are arranged in one rotation plane and all supply components are arranged outside of the rotation plane.

Abstract: A combined transmission/emission tomography apparatus for generation of tomographic slice images of an examination subject (preferably of a patient), has a supporting structure composed of a stationary stator and a rotor that rotates in operation, with at least one radiation-emitting device and at least one radiation-detecting device mounted on the rotor. The at least one radiation-emitting device and the at least one radiation-detecting device are primary components, and the apparatus has at least one associated supply component for one or more of the primary components. In the rotor all primary components are arranged in one rotation plane and all supply components are arranged outside of the rotation plane.

Abstract: The aqueous acid-containing xylose solution is first passed through an ion exchanger to remove the strong acid which was added to the raw material in the xylane hydrolysis and xylose extraction system and then subjected to evaporation in an evaporator. The evaporated water, acetic acid and formic acid of the solution is then condensed and is partly re-cycled and partly subjected to recovery processes. The concentrated xylose solution in the evaporator is then passed through a second ion exchanger to remove any traces of acetic acid or formic acid.