Computed Tomography with the X-Ray Apparatus

In 1963 and 1964 Allan Cormack published the theoretical foundations of computer tomography in the Journal of Applied Physics. In 1972 the first computed tomographic scanner was built by Godfrey Hounsfield who, together with Allan Cormack, was awarded the Nobel Prize in Physiology or Medicine in 1979. The basic idea of computerised tomography is the illumination of an object by x-rays from numerous different angles. Our educational x-ray apparatus ( preferred with W tube) allows the illumination of objects by x-rays. The resulting 2D-projections are visualised at the fluorescence screen. These projections have a relatively low intensity. Therefore a camera of high sensitivity has to be used to record the various projections. Such a camera is implemented in the computed tomography module. By turning an object using the built-in goniometer of the x-ray apparatus, and recording the 2D-projections from each angular step, the computer can reconstruct the object illuminated by x-rays. Our e-learning software visualises the back projection ( necessary for reconstructing the computed tomogram) concurrently with the scanning process. The 3D-model is then displayed on the PC screen. CT Scan of a Frog A frog is turned in a polystyrene ball with the goniometer of the x-ray unit. The 2D-projections on the fluorescence screen provide the original data for the backprojection, by which the software computes the 3D-model of the frog: The backprojection of the frog can be viewed as three-dimensional representation. Particularly at the beginning the backprojected beams can easily been observed: CT Scan of a Kinder Surprise The included toy will be already recognised in the closed plastic egg: Lego CT Scan PC Requirements The real-time recording and evaluation of a computed tomogram need a powerful CPU and graphics card. Therefore we provide the videos for your convenience. For performing CT scans the following minimum requirements apply: * Windows XP SP2 or Windows Vista ( 32 bit or 64 bit) * Dual-Core CPU 2 GHz * 2 GB RAM * DirectX 9 compatible 3D-graphics card with shader model 3 support and 256 MB RAM ( Nvidia GeForce 7600 / 8600 or better) * Screen resolution 1024x768 ( TrueColor) * USB 2.0 port For larger computed tomograms we recommend a more powerful PC: * Windows Vista ( 32 bit or 64 bit) * Quad-Core Prozessor 2, 4 GHz * 3 GB RAM * DirectX 9 compatible 3D-graphics cards with shader model 3 support and 512 MB RAM ( ATI Radeon 3850 / Nvidia GeForce 8800 or better) * Screen resolution 1280x1024 ( TrueColor) * USB 2.0 port . Hydraulic direct compression testing machine is mainly used to various materials compression test. Such as cement, concrete, brick of diverse materials, rubber tray, concrete component, metal component anti-compress strength. This kind of machine is consisted of load frame, control cabinet, computer and printer etc. It adopts hydraulic load, oil pressure transducer to measure load, manual control the testing process. PC screen display the test data and curve, with data storage and print function, the database file is convenient for user to use them by ACCESS and EXCEL. Universal testing machines, material testing machine For all tensile & compression testing of materials & products, bending, tension, Plastic film, adhesive, label, paper precise tensile, hardness testers, impact tester, torque & torsion, bending testing machine, Fracture Test, dynamic and fatigue, creep testing, impact testing, test specimens, force gauges, extensometers. Distributor universal testing machine indonesia. agent strength tester indonesia. jual universal testing machine Jakarta - indonesia Materials Testing Machines for Tensile, Fatigue, compression Impact, universal testing machines, material bending, tension, Plastic film, adhesive, label, paper precise tensile, tester kekerasan, abrasion and wear, drop weight, hardness testers, impact tester, torque & torsion, compression, bending testing machine, Fracture Test, dynamic and fatigue, creep testing, impact testing, test specimens, force gauges, extensometers, adhesion tester, torque gauges, alat uji kelelahan, hammer test, testing rig, digital spring tester, Distributor, agent, penjualan, service, perbaikan upgrade system. alat uji, alat laboratorium, alat maintenance, alat inspeksi lapangan, alat quality inspection, alat quality control, alat riset, alat monitoring system, alat preventive maintenance. Jakarta - Indonesia. Alatuji Kontak Person: Bpk. Ivan, Ibu Dini, Ibu Rahmah Hp: 0812 8006 9024, 0817 6700 726, 0816 1740 8927, 021-9529 3259, 0816 1740 8926 ( Sri) Alamat lengkap: Jl. Radin Inten II No. 62 Duren Sawit - Jakarta 13440 Phone : + 62-21 8690 6777, 8690 6771, 8690 6785 Fax : + 62-21 8690 6770 EMAIL : sales@ alatuji.com Website : www.alatuji.com