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Development Of An Imaging X Ray Detector For High Altitude Balloon Borne Astronomy
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Book Synopsis Development of an Imaging X-ray Detector for High Altitude Balloon-borne Astronomy by : Takahisa Minamitani
Download or read book Development of an Imaging X-ray Detector for High Altitude Balloon-borne Astronomy written by Takahisa Minamitani and published by . This book was released on 2000 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781725668423 Total Pages :26 pages Book Rating :4.6/5 (684 download)
Book Synopsis Development of High Resolution Imaging Detectors for X Ray Astronomy by : National Aeronautics and Space Administration (NASA)
Download or read book Development of High Resolution Imaging Detectors for X Ray Astronomy written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This final report summarizes our past activities and discusses the work performed over the period of 1 April 1990 through 1 April 1991 on x-ray optics, soft x-ray (0.1 - 10 KeV) imaging detectors, and hard x-ray (10 - 300 KeV) imaging detectors. If microchannel plates (MCPs) can be used to focus x-rays with a high efficiency and good angular resolution, they will revolutionize the field of x-ray optics. An x-ray image of a point source through an array of square MCP pores compared favorably with our ray tracing model for the MCP. Initial analysis of this image demonstrates the feasibility of MCPs for soft x-rays. Our work continues with optimizing the performance of our soft x-ray MCP imaging detectors. This work involves readout technology that should provide improved MCP readout devices (thin film crossed grid, curved, and resistive sheets), defect removal in MCPs, and photocathode optimization. In the area of hard x-ray detector development we have developed two different techniques for producing a CsI photocathode thickness of 10 to 100 microns, such that it is thick enough to absorb the high energy x-rays and still allow the photoelectrons to escape to the top MCP of a modified soft x-ray imaging detector. The methods involve vacuum depositing a thick film of CsI on a strong back, and producing a converter device that takes the place of the photocathode. Murray, S. S. and Schwartz, D. A. Unspecified Center NASA-CR-193653, NAS 1.26:193653 NAG5-605...
Book Synopsis Imaging Detectors In High Energy, Astroparticle And Medical Physics - Proceedings Of The Ucla International Conference by : Jun Park
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.
Book Synopsis Design Study of a Hard X-ray Balloon Experiment by : G Bibbo
Download or read book Design Study of a Hard X-ray Balloon Experiment written by G Bibbo and published by . This book was released on with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the field of hard X-ray and y-ray astronomy, there is increasing demand for new instruments having better energy resolution and more efficient charged particle background rejection than the present generation of inorganic scintillator spectrometers. These spectrometers are being replaced gradually by-cooled germanium solid state detectors, which have energy resolution many times better than the Hal scintillators. However, solid state detectors require complex cryogenic systems for their successful operation, and their background counting rates are comparable with those of NaI scintillators. For the detection of X-rays in the energy range 15-100 keV, a proportional counter has been developed at MSSL which uses a novel technique of charged particle background discrimination and could provide an alternative instrument to the Nal crystal scintillators. This detector, known here as the "Escape Gated Detector", has an improved energy resolution and a much more efficient background rejection compared with the conventional proportional counters. These characteristics make the Escape Gated Detector suitable for spectroscopy measurements of hard X-rays, an area of investigation which is still unexplored, and in particular for the detection and search of spectral line features such as those observed from Her X-1. A balloon experiment for the detection of X-rays in the energy range 40-100 keV has been envisaged for this detector. The sensitivity of a balloon borne X-ray detector is limited by the radiation environment present at balloon altitudes. For this reason Monte Carlo computer models have been developed to determine: (1) the quantum efficiency of the detector for different geometry and size. (2) the optimum shield required to screen the detector against atmospheric X-rays in the energy region of interest, and (3) the angular response function of the collimator. For the reader, the principal parameters of the balloon experiment are summarised in table I.
Book Synopsis Development of High Resolution Imaging Detectors for X-ray Astronomy by : Stephen S. Murray
Download or read book Development of High Resolution Imaging Detectors for X-ray Astronomy written by Stephen S. Murray and published by . This book was released on 1985 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-ray Photon Processing Detectors by : Conny Hansson
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.
Book Synopsis X-ray Detectors in Astronomy by : G. W. Fraser
Download or read book X-ray Detectors in Astronomy written by G. W. Fraser and published by Cambridge University Press. This book was released on 1989-05-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 1989, this book provides a comprehensive review of the detection techniques that are used in X-ray astronomy. Since the first discovery of a cosmic X-ray source in 1962, there has been rapid growth in X-ray astronomy, which has largely been made possible by enormous advances in the capabilities of photon counting instrumentation. The book describes the first 25 years of astronomical X-ray instrumentation and summarises the areas of current detector research, giving particular emphasis to imaging devices and to non-dispersive devices of high spectral resolution. It is the first book to give such a comprehensive treatment of the subject, and will provide astronomers with a valuable summary of detection techniques.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721573479 Total Pages :26 pages Book Rating :4.5/5 (734 download)
Book Synopsis Ultra-Long Duration Balloon Mission Concept Study by : National Aeronautics and Space Administration (NASA)
Download or read book Ultra-Long Duration Balloon Mission Concept Study written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-21 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: We carried out a mission concept Study for an ultra-long duration balloon (ULDB) mission to conduct a high-sensitivity hard x-ray (approx. 20-600 keV) imaging sky survey. The EXIST-LITE concept has been developed, and critical detector technologies for realistic fabrication of very large area Cd-Zn-Te imaging detector arrays are now much better understood. A ULDB mission such as EXIST-LITE is now even more attractive as a testbed for the full Energetic X-ray Imaging Survey Telescope (EXIST) mission, recommended by the Decadal Survey, and now included in the NASA Roadmap and Strategic Plan as one of the 'Einstein Probes'. In this (overdue!) Final Report we provide a brief update for the science opportunities possible with a ULDB mission such as EXIST-LITE and relate these to upcoming missions (INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) and Swift) as well as the ultimate very high sensitivity sky survey mission EXIST. We then review the progress made over this investigation in Detector/Telescope design concept, Gondola and Mission design concept, and Data Handling/Analysis. Goddard Space Flight Center
Book Synopsis Observation of X-ray Events at High Altitudes by Means of Balloon-borne Radiation Detectors by : Harald Trefall
Download or read book Observation of X-ray Events at High Altitudes by Means of Balloon-borne Radiation Detectors written by Harald Trefall and published by . This book was released on 1963 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis INSTRUMENTATION FOR X-RAY ASTRONOMY FROM HIGH-ALTITUDE BALLOONS: RECENT DEVELOPMENTS AND FUTURE PLANS... NASA/TM-1998-207905... JAN. 20, 199 by : United States. National Aeronautics and Space Administration
Download or read book INSTRUMENTATION FOR X-RAY ASTRONOMY FROM HIGH-ALTITUDE BALLOONS: RECENT DEVELOPMENTS AND FUTURE PLANS... NASA/TM-1998-207905... JAN. 20, 199 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A balloon-borne detector for hard x-ray astronomy by : P. K. S. Harper
Download or read book A balloon-borne detector for hard x-ray astronomy written by P. K. S. Harper and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization and Development of an Event-Driven Hybrid CMOS X-ray Detector by : Christopher Griffith
Download or read book Characterization and Development of an Event-Driven Hybrid CMOS X-ray Detector written by Christopher Griffith and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid CMOS detectors (HCD) have provided great benefit to the infrared and optical fields of astronomy, and they are poised to do the same for X-ray astronomy. Infrared HCDs have already flown on the Hubble Space Telescope and the Wide-Field Infrared Survey Explorer (WISE) mission and are slated to fly on the James Webb Space Telescope (JWST). Hybrid CMOS X-ray detectors offer low susceptibility to radiation damage, low power consumption, and fast readout time to avoid pile-up. The fast readout time is necessary for future high throughput X-ray missions. The Speedster-EXD X-ray HCD presented in this dissertation offers new in-pixel features and reduces known noise sources seen on previous generation HCDs. The Speedster-EXD detector makes a great step forward in the development of these detectors for future space missions.This dissertation begins with an overview of future X-ray space mission concepts and their detector requirements. The background on the physics of semiconductor devices and an explanation of the detection of X-rays with these devices will be discussed followed by a discussion on CCDs and CMOS detectors. Next, hybrid CMOS X-ray detectors will be explained including their advantages and disadvantages. The Speedster-EXD detector and its new features will be outlined including its ability to only read out pixels which contain X-ray events. Test stand design and construction for the Speedster-EXD detector is outlined and the characterization of each parameter on two Speedster-EXD detectors is detailed including read noise, dark current, interpixel capacitance crosstalk (IPC), and energy resolution. Gain variation is also characterized, and a Monte Carlo simulation of its impact on energy resolution is described. This analysis shows that its effect can be successfully nullified with proper calibration, which would be important for a flight mission. Appendix B contains a study of the extreme tidal disruption event, Swift J1644+57, to search for periodicities in its X-ray light curve.
Book Synopsis A Mercuric Detector System for X-ray Astronomy by : John Vincent Vallerga
Download or read book A Mercuric Detector System for X-ray Astronomy written by John Vincent Vallerga and published by . This book was released on 1982 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Developments in Balloon X-ray Astronomy by : Sanford Jerome Morganstein
Download or read book Technical Developments in Balloon X-ray Astronomy written by Sanford Jerome Morganstein and published by . This book was released on 1965 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Mercuric Detector System for X-ray Astronomy by : John Vincent Vallerga
Download or read book A Mercuric Detector System for X-ray Astronomy written by John Vincent Vallerga and published by . This book was released on 1982 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Detector Development for Hard X-ray Astronomy by : K. L. Dietz
Download or read book Detector Development for Hard X-ray Astronomy written by K. L. Dietz and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Coordinated Field Operation of Balloon-Borne Auroral X-Ray and Photometer Experiment from the ATS-F Satellite Conjugate Region by : George K. Parks
Download or read book Coordinated Field Operation of Balloon-Borne Auroral X-Ray and Photometer Experiment from the ATS-F Satellite Conjugate Region written by George K. Parks and published by . This book was released on 1978 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results obtained during this contract period have provided a basis for improving and developing new instruments. We have designed a new X-Ray imaging detector that is capable of taking snapshots of the sky in X-rays. Results from this detector design will provide additional information on electron precipitation scales and source dimensions.
