Refine
Year of publication
- 2003 (254) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (57)
- Fachbereich Elektrotechnik und Informationstechnik (33)
- Fachbereich Maschinenbau und Mechatronik (31)
- Fachbereich Wirtschaftswissenschaften (31)
- INB - Institut für Nano- und Biotechnologien (30)
- Fachbereich Energietechnik (25)
- IfB - Institut für Bioengineering (24)
- Fachbereich Luft- und Raumfahrttechnik (21)
- Fachbereich Bauingenieurwesen (20)
- Fachbereich Chemie und Biotechnologie (14)
Language
- German (147)
- English (106)
- Portuguese (1)
Document Type
- Article (154)
- Conference Proceeding (40)
- Book (29)
- Part of a Book (11)
- Course Material (7)
- Patent (5)
- Part of a Periodical (3)
- Other (2)
- Doctoral Thesis (1)
- Report (1)
Keywords
- Blitzschutz (6)
- Lightning protection (6)
- CAD (4)
- Clusterion (4)
- Air purification (3)
- Auslenkung (3)
- Bauingenieurwesen (3)
- Fachhochschule Aachen (3)
- Javasimulation (3)
- Luftreiniger (3)
- Plasmacluster ion technology (3)
- Raumluft (3)
- Risikomanagement (3)
- civil engineering (3)
- Aachen University of Applied Sciences (2)
- Amplitude (2)
- Architektur (2)
- Feder (2)
- Risikoabschätzung (2)
- Risk assessment (2)
- Risk management (2)
- Simulation (2)
- VM (2)
- Virtuelle Maschine (2)
- Virtuelle Realität (2)
- Virtuelle Sensor-Fertigung (2)
- architecture (2)
- Alternative Energiequelle (1)
- Analysis (1)
- Analytischer Zulaessigkeitsnachweis (1)
- Automotive engineering (1)
- Bakterien (1)
- Besetzungsinversion (1)
- Bioengineering (1)
- Bioingenieurwesen (1)
- Bändermodell (1)
- Cement infiltration (1)
- Digital Museum (1)
- Digitales Museum (1)
- Einspiel-Analyse (1)
- Einspielen (1)
- Einspielen <Werkstoff> (1)
- Electronic Art (1)
- Elektrische Leitung (1)
- Elektronengas (1)
- Elektronische Kunst (1)
- Emissionsrechtehandel (1)
- Energietechnische Anlage (1)
- Experiment (1)
- FEM (1)
- Fertigungsprozess (1)
- Festkörper (1)
- Haustechnik (1)
- He-Ne Laser (1)
- He-Ne Schema (1)
- Heizung (1)
- Helium-Neon-Laser (1)
- Impulstechnik (1)
- Klimatechnik (1)
- Kompetenzmanagement (1)
- Kraftfahrzeugtechnik (1)
- LabVIEW (1)
- Lichtabsorption (1)
- Lichtbetrachtung (1)
- Lichtemission (1)
- Lichtquelle (1)
- Lüftung (1)
- Lüftungstechnik (1)
- MST (1)
- Management (1)
- Mikrosystemtechnik (1)
- Museum (1)
- Museumsorganisation (1)
- Netzkunst (1)
- Osteoporose (1)
- Osteoporosis (1)
- Pendel (1)
- Permeability (1)
- Permeabilität (1)
- Photovoltaikanlagen (1)
- Pulselektroniklabor (1)
- Ratchetting (1)
- Regenerative Energieanlagen (1)
- Resonator (1)
- Signalquelle (1)
- Stahlbetonkonstruktion (1)
- Supraleitung (1)
- Umweltzertifikathandel (1)
- Vernetzung (1)
- Vertebroplastie (1)
- Vertebroplasty (1)
- Virtual Art (1)
- Virtual Exhibition (1)
- Virtual Museum (1)
- Virtuelle Ausstellung (1)
- Virtuelle Kraftwerke (1)
- Virtuelles Museum (1)
- Viscous flow (1)
- Viskose Strömung (1)
- Viskosität (1)
- Windenergieanlagen (1)
- Zug-Druck Belastung (1)
- design-by-analysis (1)
- finite element analysis (1)
- limit and shakedown analysis (1)
- low-thrust (1)
- manufacturing process (1)
- near-Earth asteroid (1)
- photovoltaic system (1)
- plasma generated ions (1)
- ratchetting (1)
- reinforced concrete (1)
- renewable energy (1)
- risk management (1)
- sample return (1)
- shakedown (1)
- skill management (1)
- solar sail (1)
- solar system (1)
- tension–torsion loading (1)
- virtual (1)
- virtual clean room (1)
- virtual fabrication of a microsensor (1)
- virtual machines (1)
- virtual sensor fabrication (1)
- virtuelle Maschinen (1)
- wind turbine (1)
Within the Crystal Clear Collaboration (CCC), four centers are developing second generation high performance small animal positron emission tomography (PET) scanners for different kinds of animals and medical applications. The first prototypes are photomultiplier tube (PMT)-based systems including depth of interaction (DOI) detection by using a phoswich layer of lutetium oxyorthosilicate (LSO) and lutetium yttrium aluminum perovskite (LuYAP). The aim of these simulation studies is to optimize sensitivity and spatial resolution of given designs, which vary in fields of view (FOVs) caused by different detector configurations (ring/octagon) and sizes. For this purpose the simulation tool GEANT3 (CERN, Geneva, Switzerland) was used.
Within the Crystal Clear Collaboration four centres are developing 2nd generation high performance small animal PET scanners for different kinds of animals and medical applications. The first prototypes are PMT-based systems including depth of interaction (DOI) detection by using a phoswich layer of LSO and LuYAP. The aim of these simulation studies is to optimize sensitivity and spatial resolution of given designs, which vary in FOVs caused by different detector configurations (ring/octagon) and sizes. For this purpose the simulation tool GEANT3 (CERN) was used. The simulations have shown that all PMT designs with one-to-one coupling of crystals have a very nonlinear axial sensitivity profile. By shifting every other PMT 1/4 of a PMT length in axial direction the sampling of the FOVs became more homogeneous. At an energy threshold of 350keV the regression coefficient increases from 0.818 for the non-shifted to 0.993 for the shifted design. Simulations of a point source centred in the FOV (threshold: 350keV) resulted in sensitivities of 4.2% for a 4×20PMT (LSO/LuYAP a 10mm) and 3.8% for a 4×16PMT (LSO/LuYAP a 8mm) ring design. The 3D-MLEM reconstruction of a point source shows the enormous improvement of resolution using a crystal double layer with DOI (3.1mm at 40mm from CFOV) instead of a 20mm single layer (11.9mm).
3D-Freiformflächenmessung
(2003)
Untersuchung eines hybriden EMV-Simulationsverfahrens anhand eines virtuellen Komponententests
(2003)
ComputerMathematik mit Maple
(2003)
Solar sailcraft of the first generation technology development / Seboldt, Wolfgang ; Dachwald, Bernd
(2003)
Sonderbilanz und Status
(2003)