Siemens Aktiengesellschaft

Thomas Weber

Gisela Anton

Thilo Michel

Jürgen Durst

Florian Bayer

Georg Pelzer

Jens Rieger

Paul Walter Baier

Dieter Emmer

Johannes Schlee

Stefan Bahrenburg

J&uuml;rgen Mayer

Franz Stuhlm&uuml;ller

A method, for examining an object using an X-ray recording system, includes aligning the object in the X-ray beam and the X-ray recording system with one another such that regions in the X-ray beam are uncovered for measurement of a free field. During an X-ray image recording, the components are moved relative to one another with a lateral displacement. In a position of the relative lateral displacement of the components, a reference image containing free fields is recorded. The X-ray image recording is generated from partial images during the displacement and the position of the second component relative to the first component is determined for each partial recording such that the displacement distances of the displacements and the reference phases are calculated from a selected set of pixels and the measured intensity values thereof. Finally, the image information is determined from the partial images, the displacements and the reference phases.

Method for examining an object using an X-ray recording system for phase contrast imaging with displacement measurement

A method, for examining an object using an X-ray recording system, includes during an X-ray image recording, moving components relative to one another with the lateral displacement by displacement distances. The method includes generating the X-ray image recording during the displacement from n partial images, so that the total exposure time of the X-ray image recording is made up from a sum of partial exposure times. In each of the partial images, the intensity is determined in each pixel. The position of the second component relative to the first component is determined for each recording of the partial images. Finally, the image information is determined from the partial images and the displacements.

Method for examining an object using an X-ray recording system for phase contrast imaging with stochastic phase scanning

In a method and arrangement for channel allocation in a radio communication system that uses a TD/CDMA subscriber separation method, an allocation of at least one channel is signalled to a radio station by an information element in a signalling message. At least one time slot is thereby selected by a time slot selection sub-information element. Subsequently, at least one CDMA code is selected for each selected time slot with a code selection sub-information element, whereby a number of code selection sub-information elements corresponds to a number of selected time slots.

Method and device for allocating channels in a CDMA radiocommunications system

A method in which an air mass flow supplied to a compressor in a power plant is divided in a flow divider into a small partial flow and into a larger partial flow. The smaller partial flow is supplied to an ejector via an air cooler and a booster. The larger partial flow is supplied to the suction line of said ejector. Both partial flows are combined in the ejector. The mass flow which is combined at the outlet of the ejector can be used as pressurized air in various components of a power plant.

Method and device for increasing the pressure of a gas

An adapter fitting for use in a stationary gas turbine installation which is provided with a compressor, a turbine, a combustion chamber and an external pressure-supercharged fluidized-bed furnace, is to be fitted between the turbine and the burner. The adapter fitting makes it possible to run various operating states of the gas turbine installation using various controllable inlets and outlets.

Growing community of inventors

Erlangen, Germany

Thomas Weber