Siemens Aktiengesellschaft

Friedrich-alexander-universitat Erlangen-nürnberg

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Ion Beam Applications S.a.

European Organization for Nuclear Research (cern)

European Organization for Nuclear Research

Gisela Anton

Thilo Michel

Jürgen Durst

Thomas Weber

Florian Bayer

Michael Böhnel

Georg Pelzer

Jens Rieger

Martin Vossiek

Daniel Niederlöhner

Björn Kreisler

Andreas Maier

Peter Bartl

Tobias Schoen

Michael Campbell

Oliver Preusche

Markus Firsching

Lukas Tlustos

Wolfgang Holub

Gabriele Suft

Winnie Sze-Wing Wong

Ernst Fritsch

Daniel Stromer

Karl Lehi Schwartz

Xavier Llopart Cudie

Michel Thilo

Rafael Ballabriga Suñe

Uwe Mollenhauer

Jan Schuer

Torsten Müller

Ina Ritter

Alexander Korn

Karl L Schwartz

Rafael Ballabriga SUÑE

The invention refers to a system for analyzing a document. Each of two measurement arrangements includes two components being a radiation source and a radiation detector, respectively. The two measurement arrangements provide measurement data and differ from each other with regard to a measurement principle, a kind of radiation source, a kind of radiation detector, a kind of relative movement between the document and a component, a kind of relative arrangement of the two components to each other, a kind of emitted radiation, a kind of received radiation or a kind of processing information about radiation emitted by the respective radiation source and/or about radiation received by the respective radiation detector. An evaluator provides data based on the measurement data. The invention also refers to a corresponding method.

System for analyzing a document and corresponding method

An embodiment of the invention relates to an X-ray device, more particularly for phase-contrast imaging in the medical sector. In at least one embodiment, the X-ray device includes an X-ray radiation source, a coherence grid, a phase grid and an X-ray detector from a number of pixels arranged in a matrix, the pixels including a lens grid.

X-ray device

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

Radiation detector for measuring one or more characteristics of a radiation, comprising one or more detector pixels, a clock pulse generator, each detector pixel comprising a sensor producing an electrical signal in response to an event of a photon or charged particle of said radiation impinging on said sensor; a pixel electronics adapted for receiving and processing said electrical signal, comprising an analog processing unit for amplifying and shaping said electrical signal and producing a shaped pulse said pixel electronics comprises time determination unit for counting the TOT-count, the TOT-count being the number of clock pulses occurring during the time interval when said shaped pulse is above a threshold. Said pixel electronics comprises a plurality of event counters, each event counter counting the number of events having a TOT-count in a predefined ranges.

Radiation monitoring device

A detector arrangement is disclosed for performing phase-contrast measurements, including at least two transducer layers arranged one behind the other, wherein at least the first transducer layer arranged in the radiation direction includes alternate sensitive areas having a high absorptance for the conversion of incident radiation quanta into signals and less sensitive areas having a lower absorptance in comparison thereto. Further, a corresponding X-ray tomography device and a method for performing phase-contrast measurements are also enclosed.

Detector arrangement and X-ray tomography device for performing phase-contrast measurements and method for performing a phase-contrast measurement

A scraper for an applicator to be used in electron radiation therapy includes a three layer arrangement. A first layer of the three layer arrangement faces an incident direction of electrons and consists of a first material of a first atomic number. The first atomic number is smaller than a second atomic number of a second material of a second layer of the three layer arrangement, The second atomic number is smaller than a third atomic number of a third material of a third layer of the three layer arrangement. The third layer faces away from the incident direction of the electrons.

Scraper for an applicator to be used in electron radiation therapy and applicator

The present invention relates to a device and method for determining one or more characteristics of radiation using a sensor comprising one or more detector units capable of counting the number of photon or charged particle of said radiation impinging on said sensor in or above a determined energy range.

Method and apparatus for determining one or more characteristics of radiation

A photon detector has a photocathode for the photon-induced triggering of measuring electrons. Spatial position information is supplied by an at least one-dimensional electron-detector pixel array. An electron optics unit serves for guiding the measuring electrons to the array. Each pixel () has an electronic converter unit () for converting an analog measuring signal of the pixel () into a digital measuring signal, which incorporates a discriminator for background suppression. An electronic post-processing unit () serves for processing the digital measuring signal. The converter unit () of each pixel () has at least one clock generator (), as well as at least one counter (), which is in signal connection with the clock generator () and discriminator () for generation of a digital timing signal. The timing signal is such that itfrom the number of clock cycles between a time-reference point and the moment (t) of the arrival of an analog measuring signal not suppressed by the discriminator (). The result is a photon detector in which not only the position information can be derived from the measuring signal but additionally also the information when the measuring signal was triggered at the given pixel.Translator's note: This transition is based on an incomplete German-language sentence.

Photon detector for photon-induced triggering of measuring electrons

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Erlangen, Germany

Gisela Anton