Blasche
Gregory Blasche, Burlington, MA US
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20140267641 | ELECTRON-BOMBARDED ACTIVE PIXEL SENSOR STAR CAMERA - A star camera system that includes an optical system configured to focus radiation from a star to be imaged onto a collector. Specifically, the collector is in the form of an electron bombarded active pixel sensor (EBAPS) configured to provide high gain. The EBAPS comprising a photocathode disposed in a vacuum is configured to release electron into a vacuum when exposed to radiation focused thereon by the optical system. In addition, the EBAPS includes an active pixel sensor anode disposed distant from the photocathode in the vacuum. An electric field is generated by a voltage source to direct electrons from the photocathode to the active pixel sensor anode to thereby generate an image of the star. | 09-18-2014 |
20140267755 | HIGH PERFORMANCE SCANNING MINIATURE STAR CAMERA SYSTEM - A star camera system that includes an optical system configured to focus radiation from a star to be imaged onto a collector that is in the form of an electron bombarded active pixel sensor (EBAPS) configured to provide high gain. The EBAPS comprising a photocathode disposed in a vacuum is configured to release electrons into the vacuum when exposed to radiation focused thereon by the optical system. The EBAPS includes an active pixel sensor anode disposed distant from the photocathode in the vacuum. An electric field is generated by a voltage source to direct the electrons from the photocathode to the active pixel sensor anode. Furthermore, the collector is mounted on a translation device configured to move the collector relative to the optical system by a predetermined amount of less than pixel size in the focal plane of the optical system to increase image resolution of a plurality of images. | 09-18-2014 |
Gregory P. Blasche, Burlington, MA US
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20150226830 | CHIP-SCALE STAR TRACKER - A chip scale star tracker that captures plane-wave starlight propagating in free space with a wafer-thin angle-sensitive broadband filter-aperture, and directs the light into a waveguide structure for readout. Angular information about the star source is determined from characteristics of the starlight propagating in the waveguide. Certain examples include internal propagation-constant-based baffling to elimination stray light from extreme angles. | 08-13-2015 |
Klaus Blasche, Darmstadt DE
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20080290297 | Particle Accelerator for Radiotherapy by Means of Ion Beams - The invention relates to a particle accelerator for radiotherapy by means of ion beams ( | 11-27-2008 |
Mathias Blasche, Buckenhof DE
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20150038830 | MAGNETIC RESONANCE DEVICE - A magnetic resonance device with at least one main field magnet and at least one gradient coil is provided. The magnetic resonance device provides more free space for the patient and treatment providers; the magnetic resonance device has at least one main field magnet, which is provided to generate a magnet volume. The magnet volume has an imaging region, which is displaced from the center of the main field magnet along a longitudinal axis defined by the main field magnet. The magnetic resonance device also has a gradient coil. In the direction of the longitudinal axis defined by the main field magnet, the gradient coil has a first side facing away from the main field magnet and a second side facing the main field magnet. The gradient coil has a cross-section with a larger area on the first side facing away than on the second facing side. The gradient coil is provided to generate variable magnetic gradient fields, the gradient fields being provided for magnetic resonance imaging in the imaging region of the magnet volume. | 02-05-2015 |
20150219733 | RF Pulse Alignment - An RF pulse alignment method for determining transmit scaling factors used in the control of a magnetic resonance system having a number of radiofrequency transmit channels, via which RF pulse trains are transmitted in parallel during operation, is provided. A common reference pulse train is specified for a number of the radiofrequency transmit channels in the course of the control function. A plurality of candidate images of an object that is to be examined are acquired using different candidate sets of transmit scaling factors. Optimal transmit scaling factors with respect to a predefined criterion are selected for each of the radiofrequency transmit channels based on the acquired candidate images. | 08-06-2015 |