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On Compton Imaging
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Book Synopsis On Compton Imaging by : Sara Mattafirri
Download or read book On Compton Imaging written by Sara Mattafirri and published by . This book was released on 2010 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract On Compton Imaging by Sara Mattafirri Doctor of Philosophy in Engineering-Nuclear Engineering University of California, Berkeley Professor Stanley G. Prussin, Co-Chair Professor Kai Vetter, Co-Chair Professor Jasmina Vujic Professor Steven Conolly The feasibility of producing an image of radioactivity distribution within a patient or confined region of space using information carried by the gamma-rays emitted from the source is investigated. The imaging approach makes use of parameters related to the gamma-rays which undergo Compton scattering within a detection system, it does not involve the use of pin-holes, and it employs gamma-rays of energy ranging from a few hundreds of keVs to MeVs. Energy range of the photons and absence of pin-holes aim to provide larger pool of radioisotopes and larger efficiency than other emission imaging modalities, such as single photon emission computed tomography and positron emission tomography, making it possible to investigate larger pool of functions and smaller radioactivity doses. The observables available to produce the image are the gamma-ray position of interaction and energy deposition during Compton scattering within the detection systems. Image reconstruction methodologies such as backprojection and list-mode maximum likelihood expectation maximization algorithm are characterized and applied to produce images of simulated and experimental sources on the basis of the observed parameters. Given the observables and image reconstruction methodologies, imaging systems based on minimizing the variation of the impulse response with position within the field of view are developed. The approach allows imaging of three-dimensional sources when an imaging system which provides full 4 pi view of the object is used and imaging of two-dimensional sources when a single block-type detector which provides one view of the object is used. Geometrical resolution of few millimeters is obtained at few centimeters from the detection system if employing gamma-rays of energy in the order of few hundreds of keVs and current state of the art semi-conductor detectors; At this level of resolution, detection efficiency is in the order of 10-̂3 at few centimeters from the detector when a single block detector few centimeters in size is used. The resolution significantly improves with increasing energy of the photons and it degrades roughly linearly with increasing distance from the detector; Larger detection efficiency can be obtained at the expenses of resolution or via targeted configurations of the detector. Results pave the way for image reconstruction of practical gamma-ray emitting sources.
Book Synopsis Compton Imaging System Development and Performance Assessment by : Chia-ho Hua
Download or read book Compton Imaging System Development and Performance Assessment written by Chia-ho Hua and published by . This book was released on 2000 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Compton Camera for Low Energy Gamma Ray Imaging in Nuclear Medicine Applications by : James Walter LeBlanc
Download or read book A Compton Camera for Low Energy Gamma Ray Imaging in Nuclear Medicine Applications written by James Walter LeBlanc and published by . This book was released on 1999 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Compton Camera for Spectroscopic Imaging from 100keV to 1MeV. by :
Download or read book A Compton Camera for Spectroscopic Imaging from 100keV to 1MeV. written by and published by . This book was released on 1906 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Compton cameras are a particularly interesting gamma-ray imaging technology because they have a large field of view and rely on electronic rather than mechanical collimation (lead). These systems produce two dimensional, spectroscopic images using data collected from spatially separated detector arrays. A single acquisition contains data to produce image signatures for each radionuclide in the field of view. Application of Compton cameras in field of astrophysics has proven the systems capability for imaging in the 1 to 30MeV range. Other potential applications, in the 100keV to 1MeV range, include nuclear material safeguards and nuclear medicine imaging. A particularly attractive feature for these applications is that the technology to produce a portable camera is now available due to improvements in solid state room-temperature detectors. The objective of this work is to investigate Compton camera technology for spectroscopic imaging of gamma rays in the 100keV to 1MeV range. To this end, accurate and efficient camera simulation capability will allow a variety of design issues to be explored before a full camera system is built. An efficient, specific purpose Monte Carlo code was developed to investigate the image formation process in Compton cameras. The code is based on a pathway sampling technique with extensive use of variance reduction techniques. In particular, the technique of forcing is used make each history result in a partial success. The code includes detailed Compton scattering physics, including incoherent scattering functions, Doppler broadening, and multiple scattering. Detector response functions are also included in the simulations. A prototype camera was built to provide code benchmarks and investigate implementation issues. The prototype is based on a two-detector system, which sacrifices detection efficiency for simplicity and versatility. One of the detectors is mounted on a computer controlled stage capable of two dimensional motion (14x14cm.
Book Synopsis Techniques for Nuclear and Particle Physics Experiments by : William R. Leo
Download or read book Techniques for Nuclear and Particle Physics Experiments written by William R. Leo and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: A treatment of the experimental techniques and instrumentation most often used in nuclear and particle physics experiments as well as in various other experiments, providing useful results and formulae, technical know-how and informative details. This second edition has been revised, while sections on Cherenkov radiation and radiation protection have been updated and extended.
Book Synopsis X-ray Imaging Based on Compton Scattering by :
Download or read book X-ray Imaging Based on Compton Scattering written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This presentation highlights a number of applications where rapid, low-dose, one-sided Compton imaging is especially desirable and describes typical methods for creating these images. Some of the systems are also capable of scanning an object by simultaneously forming multiple backscatter images of vehicles from different perspectives, such as left, right, and top-down. While each view has limited penetration ability, the combination of views provides a powerful inspection tool that often permits threat objects to be easily discerned, even in a cluttered environment.
Book Synopsis Medical Imaging Systems by : Andreas Maier
Download or read book Medical Imaging Systems written by Andreas Maier and published by Springer. This book was released on 2018-08-02 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book gives a complete and comprehensive introduction to the fields of medical imaging systems, as designed for a broad range of applications. The authors of the book first explain the foundations of system theory and image processing, before highlighting several modalities in a dedicated chapter. The initial focus is on modalities that are closely related to traditional camera systems such as endoscopy and microscopy. This is followed by more complex image formation processes: magnetic resonance imaging, X-ray projection imaging, computed tomography, X-ray phase-contrast imaging, nuclear imaging, ultrasound, and optical coherence tomography.
Book Synopsis 4-pi Compton Imaging Using a Single 3-D Position Sensitive CdZnTe Detector by : Carolyn E. Lehner
Download or read book 4-pi Compton Imaging Using a Single 3-D Position Sensitive CdZnTe Detector written by Carolyn E. Lehner and published by . This book was released on 2004 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiple Compton Scatter Camera for Gamma Ray Imaging by : Nesrin Dogan
Download or read book Multiple Compton Scatter Camera for Gamma Ray Imaging written by Nesrin Dogan and published by . This book was released on 1993 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compton Imaging for Homeland Security by : Anthony Sweeney
Download or read book Compton Imaging for Homeland Security written by Anthony Sweeney and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Compton Scatter Camera for Spectral Imaging of 0.5 to 3.0 MeV Gamma Rays by : Jeffrey Basil Martin
Download or read book A Compton Scatter Camera for Spectral Imaging of 0.5 to 3.0 MeV Gamma Rays written by Jeffrey Basil Martin and published by . This book was released on 1994 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FRCR Physics Notes by : Christopher Clarke
Download or read book FRCR Physics Notes written by Christopher Clarke and published by . This book was released on 2020-11-13 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive medical imaging physics notes aimed at those sitting the first FRCR physics exam in the UK and covering the scope of the Royal College of Radiologists syllabus. Written by Radiologists, the notes are concise and clearly organised with 100's of beautiful diagrams to aid understanding. The notes cover all of radiology physics, including basic science, x-ray imaging, CT, ultrasound, MRI, molecular imaging, and radiation dosimetry, protection and legislation. Although aimed at UK radiology trainees, it is also suitable for international residents taking similar examinations, postgraduate medical physics students and radiographers. The notes provide an excellent overview for anyone interested in the physics of radiology or just refreshing their knowledge. This third edition includes updates to reflect new legislation and many new illustrations, added sections, and removal of content no longer relevent to the FRCR physics exam. This edition has gone through strict critique and evaluation by physicists and other specialists to provide an accurate, understandable and up-to-date resource. The book summarises and pulls together content from the FRCR Physics Notes at Radiology Cafe and delivers it as a paperback or eBook for you to keep and read anytime. There are 7 main chapters, which are further subdivided into 60 sub-chapters so topics are easy to find. There is a comprehensive appendix and index at the back of the book.
Book Synopsis High-Sensitivity Compton Imaging with Position-Sensitive Si and Ge Detectors by :
Download or read book High-Sensitivity Compton Imaging with Position-Sensitive Si and Ge Detectors written by and published by . This book was released on 2006 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development of Compton Imaging Techiques for the GammaKev Project Using the AGATA A006 Detector by : Michael John Slee
Download or read book The Development of Compton Imaging Techiques for the GammaKev Project Using the AGATA A006 Detector written by Michael John Slee and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Emission Tomography by : Miles N. Wernick
Download or read book Emission Tomography written by Miles N. Wernick and published by Elsevier. This book was released on 2004-12-07 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: PET and SPECT are two of today's most important medical-imaging methods, providing images that reveal subtle information about physiological processes in humans and animals. Emission Tomography: The Fundamentals of PET and SPECT explains the physics and engineering principles of these important functional-imaging methods. The technology of emission tomography is covered in detail, including historical origins, scientific and mathematical foundations, imaging systems and their components, image reconstruction and analysis, simulation techniques, and clinical and laboratory applications. The book describes the state of the art of emission tomography, including all facets of conventional SPECT and PET, as well as contemporary topics such as iterative image reconstruction, small-animal imaging, and PET/CT systems. This book is intended as a textbook and reference resource for graduate students, researchers, medical physicists, biomedical engineers, and professional engineers and physicists in the medical-imaging industry. Thorough tutorials of fundamental and advanced topics are presented by dozens of the leading researchers in PET and SPECT. SPECT has long been a mainstay of clinical imaging, and PET is now one of the world's fastest growing medical imaging techniques, owing to its dramatic contributions to cancer imaging and other applications. Emission Tomography: The Fundamentals of PET and SPECT is an essential resource for understanding the technology of SPECT and PET, the most widely used forms of molecular imaging.*Contains thorough tutorial treatments, coupled with coverage of advanced topics*Three of the four holders of the prestigious Institute of Electrical and Electronics Engineers Medical Imaging Scientist Award are chapter contributors*Include color artwork
Book Synopsis Large-Scale Compton Imaging for Wide-Area Surveillance by : D. J. Lange
Download or read book Large-Scale Compton Imaging for Wide-Area Surveillance written by D. J. Lange and published by . This book was released on 2006 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the performance of a large-scale Compton imaging detector placed in a low-flying aircraft, used to search wide areas for rad/nuc threat sources. In this paper we investigate the performance potential of equipping aerial platforms with gamma-ray detectors that have photon sensitivity up to a few MeV. We simulate the detector performance, and present receiver operating characteristics (ROC) curves for a benchmark scenario using a {sup 137}Cs source. The analysis uses a realistic environmental background energy spectrum and includes air attenuation.
Book Synopsis The Development of Compton Imaging Techniques for the GammaKEV Project Using the AGATA A006 Detector by : Michael John Slee
Download or read book The Development of Compton Imaging Techniques for the GammaKEV Project Using the AGATA A006 Detector written by Michael John Slee and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
