Download or read book Development of Position sensitive CdZnTe Detectors for High energy X ray Astrophysics written by Kimberly Robin Slavis and published by . This book was released on 2001 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization and Optimization of CdZnTe Frisch Collar Gamma ray Spectrometers and Their Development in an Array of Detectors written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cadmium Zinc Telluride (CdZnTe) has been used for many applications, such as medical imaging and astrophysics, since its first demonstration as a room temperature operating gamma-ray detector in 1992. The wide band gap, high effective Z-number and high resistivity of CdZnTe make it a good candidate for use as a room temperature operated detector with good absorption efficiency, while maintaining a low bulk leakage current at high electric fields. Nevertheless, the low mobility lifetime products mu tau of holes in CdZnTe makes detectors position sensitive, unless advanced detector designs are employed. Among those designs is the Frisch collar technology which turns the detector into a single carrier device by negating the degrading effects of hole trapping and low mobility. The superiority of the Frisch collar technology over other methods include its inexpensive associated electronics and straight forward fabrication process. The main objective of this research study is to develop a large volume gamma-ray detector with an array of individual CdZnTe Frisch collar gamma-ray spectrometers while still using a single readout. Several goals were to be accomplished prior to the main objective. One goal is to develop a reliable low cost method to fabricate bulk CdZnTe crystals into Frisch collar detectors. Another goal was to investigate the limitations of crystal geometry and the crystal electrical properties to obtain the best spectroscopic performance from CdZnTe Frisch collar detectors. Still another goal was to study all other external parameters such as the collar length, anode to cathode ratio, the insulator thickness and applied voltage on performance of CdZnTe Frisch collar detectors. The final goal was to construct the CdZnTe Frisch collar devices into an array and to show its feasibility of being used for large volume detector.
Download or read book Handbook of X ray and Gamma ray Astrophysics written by Cosimo Bambi and published by Springer Nature. This book was released on with total page 5912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solid State Radiation Detectors written by Salah Awadalla and published by CRC Press. This book was released on 2017-12-19 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrating aspects of engineering, application physics, and medical science, Solid-State Radiation Detectors: Technology and Applications offers a comprehensive review of new and emerging solid-state materials-based technologies for radiation detection. Each chapter is structured to address the current advantages and challenges of each material and technology presented, as well as to discuss novel research and applications. Featuring contributions from leading experts in industry and academia, this authoritative text: Covers modern semiconductors used for radiation monitoring Examines CdZnTe and CdTe technology for imaging applications including three-dimensional capability detectors Highlights interconnect technology for current pixel detectors Describes hybrid pixel detectors and their characterizations Tackles the integrated analog signal processing read-out front ends for particle detectors Considers new organic materials with direct bandgap for direct energy detection Summarizes recent developments involving lanthanum halide and cerium bromide scintillators Analyzes the potential of recent progress in the field of crystallogenesis, quantum dots, and photonics crystals toward a new concept of x- and gamma-ray detectors based on metamaterials Explores position-sensitivity photomultipliers and silicon photomultipliers for scintillation crystals Solid-State Radiation Detectors: Technology and Applications provides a valuable reference for engineers and scientists looking to enhance the performance of radiation detector technology for medical imaging and other applications.
Download or read book DEVELOPMENT AND OPTIMIZATION OF A METHOD FOR POSITION RESOLUTION IN CdZnTe DETECTORS written by Luis Ocampo Giraldo and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cadmium Zinc Telluride (CZT) is one of the most developed wide band gap semiconductor materials being used for making radiation detectors due to its high density and atomic number, excellent spectral resolution, physical stability and room-temperature operation. However, the availability of large-volume CZT detectors for many applications is limited due to the low production yield and high cost of CZT crystals. Crystal defects, which are present even in the highest quality CZT material available today, are the major problem causing response non-uniformity across the detector. To address this challenge, high-resolution position-sensitive (high granularity) detectors have been proposed to correct response non-uniformities by virtually or physically subdividing the detectors area into small voxels and equalizing the responses measured. There are several detector designs that practically implement this approach.This dissertation work focuses on the enhancement of position resolution for two types of CZT detectors, pixelated and virtual Frisch-grid (VFG) using time correlated digital signals. This is done through the development and testing of algorithms for processing digitized charge signals resulting in the creation of the time-correlated samples technique. This technique is evaluated using pixelated detectors and a focused laser beam developed to measure the position interactions of single charge and charge sharing events. This novel approach resulted in a position resolution of 200 m for an estimated equivalent gamma energy of 260 keV and
Download or read book Solid State Radiation Detectors written by Salah Awadalla and published by CRC Press. This book was released on 2017-12-19 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrating aspects of engineering, application physics, and medical science, Solid-State Radiation Detectors: Technology and Applications offers a comprehensive review of new and emerging solid-state materials-based technologies for radiation detection. Each chapter is structured to address the current advantages and challenges of each material and technology presented, as well as to discuss novel research and applications. Featuring contributions from leading experts in industry and academia, this authoritative text: Covers modern semiconductors used for radiation monitoring Examines CdZnTe and CdTe technology for imaging applications including three-dimensional capability detectors Highlights interconnect technology for current pixel detectors Describes hybrid pixel detectors and their characterizations Tackles the integrated analog signal processing read-out front ends for particle detectors Considers new organic materials with direct bandgap for direct energy detection Summarizes recent developments involving lanthanum halide and cerium bromide scintillators Analyzes the potential of recent progress in the field of crystallogenesis, quantum dots, and photonics crystals toward a new concept of x- and gamma-ray detectors based on metamaterials Explores position-sensitivity photomultipliers and silicon photomultipliers for scintillation crystals Solid-State Radiation Detectors: Technology and Applications provides a valuable reference for engineers and scientists looking to enhance the performance of radiation detector technology for medical imaging and other applications.
Download or read book Three dimensional Position Sensitive CdZnTe Gamma Ray Spectrometers written by Wen Li and published by . This book was released on 2001 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semiconductor Radiation Detectors written by Salim Reza and published by CRC Press. This book was released on 2017-10-23 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to educate the reader on radiation detectors, from sensor to read-out electronics to application. Relatively new detector materials, such as CdZTe and Cr compensated GaAs, are introduced, along with emerging applications of radiation detectors. This X-ray technology has practical applications in medical, industrial, and security applications. It identifies materials based on their molecular composition, not densities as the traditional transmission equipment does. With chapters written by an international selection of authors from both academia and industry, the book covers a wide range of topics on radiation detectors, which will satisfy the needs of both beginners and experts in the field.
Download or read book Semiconductor Radiation Detectors written by Alan Owens and published by CRC Press. This book was released on 2019-05-31 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Choice Recommended Title, July 2020 Bringing together material scattered across many disciplines, Semiconductor Radiation Detectors provides readers with a consolidated source of information on the properties of a wide range of semiconductors; their growth, characterization and the fabrication of radiation sensors with emphasis on the X- and gamma-ray regimes. It explores the promise and limitations of both the traditional and new generation of semiconductors and discusses where the future in semiconductor development and radiation detection may lie. The purpose of this book is two-fold; firstly to serve as a text book for those new to the field of semiconductors and radiation detection and measurement, and secondly as a reference book for established researchers working in related disciplines within physics and engineering. Features: The only comprehensive book covering this topic Fully up-to-date with new developments in the field Provides a wide-ranging source of further reference material
Download or read book Research and Technology written by Goddard Space Flight Center and published by . This book was released on 1995 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Imaging Detectors In High Energy Astroparticle And Medical Physics Proceedings Of The Ucla International Conference written by Jun Park and published by World Scientific. This book was released on 1996-10-04 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses four major topical areas: imaging detectors for astrophysics application, noble liquid compound, medical application and high energy application.Noble liquid and scintillating fiber technology, which opened a new era in high spatial (energy) resolution, high speed detection of charged particles and gamma rays, is developing further and its application seems to be concentrated in three major directions: astrophysics, high energy physics and medical imaging. In addition, the book covers new developments in imaging photon detectors, hybrid type (fiber and noble liquid) detectors for WIMP search and several promising techniques for new imaging detectors.
Download or read book Development of Position Sensitive Energy Discriminating PSED Detector for X ray Diffraction written by and published by . This book was released on 1988 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earlier experimentation was completed on the development of a position sensitive x-ray detector based on Charge Couple Device (CCD) technology. To create a system that would adequately discriminate x-ray energy levels, the noise level of the CCD readout system needed to be minimized and the ability of the CCD itself to fully collect the x-ray produced charge needed to be improved. This report summarizes the efforts made to improve the test system by both optimizing its readout mechanisms and by optimizing the CCD itself. Experimentation was done to determine the capability of the EEV Standard (P86223) CCD (3 um depletion region) and the experimental EEV High Resistivity (P8600HR) CCD (30 um depletion region). System characteristics such as system noise and charge transfer efficiency were analyzed and the system modified. Once the system performance had been pushed close to its limits, x-ray tests were performed.
Download or read book X ray Photon Processing Detectors written by Conny Hansson and published by Springer Nature. This book was released on 2023-11-14 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers a good overview of some of most recent advances in the field of hybrid pixelated detectors for X-ray imaging. Coverage includes both technology and applications, with an in-depth review of the research topics conducted at leading research institutions in the world. The conversion of the X-ray signal into an analogue/digital value is discussed, as well as a review of CMOS chips used for X-ray image sensors. Applications of hybrid pixel detectors are discussed, such as medical imaging, high energy physics, space, non-destructive testing and security. Provides coverage of a broad range of topics, from international experts in academia and industry; Includes in-depth analysis of how to optimize X-ray detection and electronics for X-ray detection; Covers both technology and applications in a number of different domains.
Download or read book Imaging gaseous detectors and their applications written by Eugenio Nappi and published by John Wiley & Sons. This book was released on 2013-02-21 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describing advanced detectors and their visualization and investigation techniques, this book presents the major applications in nuclear and high-energy physics, astrophysics, medicine and radiation measurements.
Download or read book Literature 1997 Part 1 written by Astronomisches Rechen-InstitutARI and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 1746 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astronomy and Astrophysics Abstracts is devoted to the recording, summarizing and indexing of astronomical publications throughout the world. Two volumes are scheduled to appear per year. Volume 67 records 10,903 papers covering besides the classical fields of astronomy and astrophysics such matters as space flights related to astronomy, lunar and planetary probes and satellites, meteorites and interplanetary matter, X rays and cosmic rays, quasars and pulsars. The abstracts are classified under more than one hundred subject categories thus permitting quick surveying of the bulk of material published on the same topic within six months. For instance, this volume records 119 papers on minor planets, 155 papers on supernovae, and 554 papers on cosmology.
Download or read book Characterization of Single sided CdZnTe Strip Detectors for High Energy Astrophysics Applications written by Burçin Dönmez and published by . This book was released on 2006 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semiconductor Radiation Detectors written by Salim Reza and published by CRC Press. This book was released on 2017-10-23 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to educate the reader on radiation detectors, from sensor to read-out electronics to application. Relatively new detector materials, such as CdZTe and Cr compensated GaAs, are introduced, along with emerging applications of radiation detectors. This X-ray technology has practical applications in medical, industrial, and security applications. It identifies materials based on their molecular composition, not densities as the traditional transmission equipment does. With chapters written by an international selection of authors from both academia and industry, the book covers a wide range of topics on radiation detectors, which will satisfy the needs of both beginners and experts in the field.
