Development Of An Improved Neutron Computed Tomography System Utilizing A Cooled Charge Coupled Device Array PDF Download
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Author | : George William Poulos |
Publisher | : |
Total Pages | : 136 |
Release | : 1990 |
Genre | : |
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Download Development of an Improved Neutron Computed Tomography System Utilizing a Cooled Charge Coupled Device Array Book in PDF, ePub and Kindle
Author | : Liang Shi |
Publisher | : |
Total Pages | : |
Release | : 2008 |
Genre | : Neutron radiography |
ISBN | : |
Download Development of a Neutron Computed Tomography System at the Pennsylvania State University Book in PDF, ePub and Kindle
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Total Pages | : 1200 |
Release | : 1993 |
Genre | : Medicine |
ISBN | : |
Download Biomedical Index to PHS-supported Research Book in PDF, ePub and Kindle
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Publisher | : |
Total Pages | : 1192 |
Release | : 1992 |
Genre | : Medicine |
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Download Biomedical Index to PHS-supported Research: pt. A. Subject access A-H Book in PDF, ePub and Kindle
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Total Pages | : 6 |
Release | : 1998 |
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Download Thermal and Cold Neutron Computed Tomography at the Los Alamos Neutron Scattering Center Using an Amorphous Silicon Detector Array Book in PDF, ePub and Kindle
The use of the EG and G-Heimann RTM 128 or dpiX FS20 amorphous silicon (a-Si) detector array for thermal neutron radiography/computed tomography has proven to be a quick and efficient means of producing high quality digital radiographic images. The resolution, although not as good as film, is about 750 pm with the RTM and 127 pm with the dpiX array with a dynamic range in excess of 2,800. In many respects using an amorphous silicon detector is an improvement over other techniques such as imaging with a CCD camera, using a storage phosphor plate or film radiography. Unlike a CCD camera, which is highly susceptible to radiation damage, a-Si detectors can be placed in the beam directly behind the object under examination and do not require any special optics or turning mirrors. The amorphous silicon detector also allows enough data to be acquired to construct a digital image in just a few seconds (minimum gate time 40 ms) whereas film or storage plate exposures can take many minutes and then need to be digitized with a scanner. The flat panel can therefore acquire a complete 3D computed tomography data set in just a few tens of minutes. While a-Si detectors have been proposed for use in imaging neutron beams, this is the first reported implementation of such a detector for neutron imaging.
Author | : Derek Anderson Haas |
Publisher | : |
Total Pages | : 130 |
Release | : 2006 |
Genre | : Neutron radiography |
ISBN | : |
Download Development of a Neutron Radiography and Computed Tomography System at a University Research Reactor Book in PDF, ePub and Kindle
Neutron radiography is a non-destructive analysis tool that complements X-ray transmission radiography. The use of neutrons provides the ability to image the interior of an object that has a metal core of steel or lead that would shield the interior from X-ray inspection. Neutron tomography is the use of a set of images of a single sample taken at various angles to produce a three dimensional rendition of the sample that greatly increases the effectiveness of neutron radiography as a non-destructive testing tool. A neutron radiography and tomography system has been built at the 1.1 MW TRIGA Mark II nuclear research reactor at The University of Texas at Austin in the Nuclear Engineering Teaching Lab. The Texas Neutron Imaging Facility is located on beam port five of the reactor and is housed in a shielding cave made of concrete to minimize radiation dose to users. The system itself integrates a sample positioning system and neutron sensitive camera through the use of a control code written in National Instruments Labview software. The code was written to increase the efficiency of the imaging process and to provide flexibility in the system. Precise sample positioning and timing of image acquisition provided by the code allows for the collection of data that can be used in computed tomography. The system has produced results in the form of radiographs and 3-D reconstructions of sample objects.
Author | : |
Publisher | : |
Total Pages | : 622 |
Release | : 1997 |
Genre | : Aeronautics |
ISBN | : |
Download International Aerospace Abstracts Book in PDF, ePub and Kindle
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 222 |
Release | : 2006-06-01 |
Genre | : Science |
ISBN | : 030916463X |
Download Visualizing Chemistry Book in PDF, ePub and Kindle
Scientists and engineers have long relied on the power of imaging techniques to help see objects invisible to the naked eye, and thus, to advance scientific knowledge. These experts are constantly pushing the limits of technology in pursuit of chemical imagingâ€"the ability to visualize molecular structures and chemical composition in time and space as actual events unfoldâ€"from the smallest dimension of a biological system to the widest expanse of a distant galaxy. Chemical imaging has a variety of applications for almost every facet of our daily lives, ranging from medical diagnosis and treatment to the study and design of material properties in new products. In addition to highlighting advances in chemical imaging that could have the greatest impact on critical problems in science and technology, Visualizing Chemistry reviews the current state of chemical imaging technology, identifies promising future developments and their applications, and suggests a research and educational agenda to enable breakthrough improvements.
Author | : John Banhart |
Publisher | : Oxford University Press |
Total Pages | : 489 |
Release | : 2008-03-20 |
Genre | : Medical |
ISBN | : 0199213240 |
Download Advanced Tomographic Methods in Materials Research and Engineering Book in PDF, ePub and Kindle
Tomography provides 3D images of materials or engineering components and an unprecedented insight into their internal structure. This book discusses developments in the field, such as the extension of tomographic methods to materials research and engineering.
Author | : |
Publisher | : |
Total Pages | : 980 |
Release | : 1993 |
Genre | : Electrical engineering |
ISBN | : |
Download Science Abstracts Book in PDF, ePub and Kindle