Siemens Aktiengesellschaft

Oce Printing Systems Gmbh

Msa Auer Gmbh

Christian Scholz

Peter Tiemann

Andreas Böttcher

Volkhard Maess

Manfred Wiedemer

Hans Winter

Andreas J Heilos

Olga Deiss

Andre Kluge

Thomas Grieb

Stefan Hoffmann

Mark Hastenteufel

Rostislav Teteruk

Iwan Kawrakow

Christopher Grandt

Peter Gulde

Ljiljana Hanf

A method for calculating local part radiation doses in a radiotherapy system for applying a total radiation dose in a target volume with several beams is provided. The method includes determining at least one first control plane for controlling the dosing of the beams, determining at least one second control plane for controlling the positioning of the beams, and allocating beams to the first and second control planes. The method also includes, for at least one side of a first control plane, calculating in isolation of the corresponding local part radiation doses of all the beams allocated to the first control plane.

Method for the operation of a radiotherapy system and a radiotherapy system

A method and a device for regulating a therapeutic beam directed at an object are provided. The method includes displaying at least one multidimensional image data record encompassing at least one target area of the object. The method also includes determining the treatment beam dosage directed at the at least one target area, and recording and optionally visualizing an isoline or isosurface dependent on the treatment beam dosage in the at least one multidimensional image data record. The method includes adjusting the isoline or isosurface such that the isoline or isosurface approximates a contour of the target area as closely as possible or corresponds to the contour, and regulating the treatment beam dosage by evaluation of the adjusted isoline or isosurface.

Device and method for radiation dosimetry

The invention relates to a heat shield element for lining a combustion chamber wall, to a combustion chamber and to a gas turbine. The heat shield element comprises a hot side that can be exposed to a hot medium, a wall side opposite said hot side, and a peripheral side adjoining the hot side and the wall side and having a peripheral side surface. Relief slots are introduced into the material in an area of the heat shield element that is susceptible to material cracks induced by thermal stress, thereby limiting crack propagation.

Heat shield element for lining a combustion chamber wall, combustion chamber and gas turbine

Apparatus for dosing gaseous and/or vaporous substances An apparatus for dosing gaseous and/or vaporous substances, in particular for generating varying scents, includes a multitude of packaged storage containers () from which different gases and/or vapors are driven out by a carrier medium. On their inlet sides, the storage containers are connected to a common carrier medium manifold () via a shut-off device () assigned to each storage container that can be actuated, and on their outlet sides to a joint homogenization chamber (). Both the carrier medium manifold and the homogenization chamber are connected to a carrier medium source using a regulating valve (). Check valves () are integrated in the gas passages to the storage container and from the storage container to the homogenization chamber. A dosing apparatus designed based on this principle is characterized by low space requirements and materially separate volume flows that can be exactly timed and dosed.

Device for the dosing of gaseous and/or vaporous matters

In a method and device to control a print process in a printer or copier, with a character generator generating a latent print image and a latent toner marking on an image carrier. An exposure energy per unit area for the generation of the latent toner marking is decreased in comparison to an energy per unit area for generation of the latent print image. The latent print image and the latent toner marking are developed with toner in the developer station. An optical reflection sensor determines color density of the developed toner marking. Toner concentration is adjusted in a developer station dependent on a signal of the reflection sensor.

Method and device for controlling a print process with high color density

A gas turbine with axially mutually displaceable guide parts that compensates for differing amounts of thermal expansion, comprising guide parts which can be displaced with respect to one another in the axial direction and enclose a funnel-like gas duct from outside. In order to optimize a rotor blade tip gap, at least one of the funnel-like guide parts under control by means of a motor can be displaced. As a result of the axial displacement, because of the funnel-like shape of the guide parts, the width of the rotor blade tip gap is changed.

Gas turbine with axially mutually displaceable guide parts

Optical character generator for an electrographic printer

A copper and/or permalloy layer is structured by means of dry etching. A layer of tantalum is applied as a mask to a layer to be structured, and a photoresist layer is applied to the tantalum layer. Subsequently, the structure of the photoresist layer generated in a photolithographic manner is transferred onto the mask by reactive ion etching. This procedure is continued until the copper or permalloy layer to be structured is exposed. The structuring of the copper or permalloy layer then occurs by ion beam etching.

Method for structuring a copper and/or permalloy layer by means of dry

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Ketsch, Germany

Christian Scholz