Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Gamma Discrimination In Pillar Structured Thermal Neutron Detectors
Download Gamma Discrimination In Pillar Structured Thermal Neutron Detectors full books in PDF, epub, and Kindle. Read online Gamma Discrimination In Pillar Structured Thermal Neutron Detectors ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Gamma Discrimination in Pillar Structured Thermal Neutron Detectors by :
Download or read book Gamma Discrimination in Pillar Structured Thermal Neutron Detectors written by and published by . This book was released on 2012 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid-state thermal neutron detectors are desired to replace 3He tube based technology for the detection of special nuclear materials. 3He tubes have some issues with stability, sensitivity to microphonics and very recently, a shortage of 3He. There are numerous solid-state approaches being investigated that utilize various architectures and material combinations. By using the combination of high-aspect-ratio silicon PIN pillars, which are 2?m wide with a 2?m separation, arranged in a square matrix, and surrounded by 1°B, the neutron converter material, a high efficiency thermal neutron detector is possible. Besides intrinsic neutron detection efficiency, neutron to gamma discrimination is an important figure of merit for unambiguous signal identification. In this work, theoretical calculations and experimental measurements are conducted to determine the effect of structure design of pillar structured thermal neutron detectors including: intrinsic layer thickness, pillar height, substrate doping and incident gamma energy on neutron to gamma discrimination.
Book Synopsis Experimental Determination of Gamma-ray Discrimination in Pillar-structured Thermal Neutron Detectors Under High Gamma-ray Flux by :
Download or read book Experimental Determination of Gamma-ray Discrimination in Pillar-structured Thermal Neutron Detectors Under High Gamma-ray Flux written by and published by . This book was released on 2015 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon pillar structures filled with a neutron converter material (10B) are designed to have high thermal neutron detection efficiency with specific dimensions of 50 ?m pillar height, 2 ?m pillar diameter and 2 ?m spacing between adjacent pillars. In this paper, we have demonstrated such a detector has a high neutron-to-gamma discrimination of 106 with a high thermal neutron detection efficiency of 39% when exposed to a high gamma-ray field of 109 photons/cm2s.
Book Synopsis Numerical Simulations of Pillar Structured Solid State Thermal Neutron Detector Efficiency and Gamma Discrimination by :
Download or read book Numerical Simulations of Pillar Structured Solid State Thermal Neutron Detector Efficiency and Gamma Discrimination written by and published by . This book was released on 2008 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work reports numerical simulations of a novel three-dimensionally integrated, 1°boron (1°B) and silicon p+, intrinsic, n+ (PIN) diode micropillar array for thermal neutron detection. The inter-digitated device structure has a high probability of interaction between the Si PIN pillars and the charged particles (alpha and 7Li) created from the neutron - 1°B reaction. In this work, the effect of both the 3-D geometry (including pillar diameter, separation and height) and energy loss mechanisms are investigated via simulations to predict the neutron detection efficiency and gamma discrimination of this structure. The simulation results are demonstrated to compare well with the measurement results. This indicates that upon scaling the pillar height, a high efficiency thermal neutron detector is possible.
Book Synopsis Pillar Structured Thermal Neutron Detectors by :
Download or read book Pillar Structured Thermal Neutron Detectors written by and published by . This book was released on 2010 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Si Pillar Structured Thermal Neutron Detectors by :
Download or read book Si Pillar Structured Thermal Neutron Detectors written by and published by . This book was released on 2011 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Method for Manufacturing Solid-state Thermal Neutron Detectors with Simultaneous High Thermal Neutron Detection Efficiency (]50%) and Neutron to Gamma Discrimination (]1.0E4). by :
Download or read book Method for Manufacturing Solid-state Thermal Neutron Detectors with Simultaneous High Thermal Neutron Detection Efficiency (]50%) and Neutron to Gamma Discrimination (]1.0E4). written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods for manufacturing solid-state thermal neutron detectors with simultaneous high thermal neutron detection efficiency (>50%) and neutron to gamma discrimination (>10.sup. 4) are provided. A structure is provided that includes a p+ region on a first side of an intrinsic region and an n+ region on a second side of the intrinsic region. The thickness of the intrinsic region is minimized to achieve a desired gamma discrimination factor of at least 1.0E+04. Material is removed from one of the p+ region or the n+ region and into the intrinsic layer to produce pillars with open space between each pillar. The open space is filed with a neutron sensitive material. An electrode is placed in contact with the pillars and another electrode is placed in contact with the side that is opposite of the intrinsic layer with respect to the first electrode.
Book Synopsis Fabrication of Pillar-Structured Thermal Neutron Detectors by :
Download or read book Fabrication of Pillar-Structured Thermal Neutron Detectors written by and published by . This book was released on 2007 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pillar detector is an innovative solid state device structure that leverages advanced semiconductor fabrication technology to produce a device for thermal neutron detection. State-of-the-art thermal neutron detectors have shortcomings in achieving simultaneously high efficiency, low operating voltage while maintaining adequate fieldability performance. By using a 3-dimensional silicon PIN diode pillar array filled with isotopic boron 10, (1°B) a high efficiency device is theoretically possible. The fabricated pillar structures reported in this work are composed of 2 [mu]m diameter silicon pillars with a 4 [mu]m pitch and pillar heights of 6 and 12 [mu]m. The pillar detector with a 12 [mu]m height achieved a thermal neutron detection efficiency of 7.3% at 2V.
Book Synopsis Radiation Sensors with 3D Electrodes by : Cinzia Da Vià
Download or read book Radiation Sensors with 3D Electrodes written by Cinzia Da Vià and published by CRC Press. This book was released on 2019-01-17 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by the leading names in this field, this book introduces the technical properties, design and fabrication details, measurement results, and applications of three-dimensional silicon radiation sensors. Such devices are currently used in the ATLAS experiment at the European Centre for Particle Physics (CERN) for particle tracking in high energy physics. These sensors are the radiation hardest devices ever fabricated and have applications in ground-breaking research in neutron detection, medical dosimetry and space technologies and more. Chapters explore the essential features of silicon particle detectors, interactions of radiation with matter, radiation damage effects, and micro-fabrication, in addition to a providing historical overview of the field. This book will be a key reference for students and researchers working with sensor technologies. Features: The first book dedicated to this unique and growing subject area, which is also widely applicable in high-energy physics, medical physics, space science and beyond Authored by Sherwood Parker, the inventor of the concept of 3D detectors; Cinzia Da Vià, who has brought 3DSi technology to application; and Gian-Franco Dalla Betta, a leading figure in the design and fabrication technology of these devices Explains to non-experts the essential features of silicon particle detectors, interactions of radiation with matter, radiation damage effects, and micro-fabrication
Book Synopsis Thermal Neutron Detection Using Alkali Halide Scintillators with Li-6 and Pulse Shape Discrimination by :
Download or read book Thermal Neutron Detection Using Alkali Halide Scintillators with Li-6 and Pulse Shape Discrimination written by and published by . This book was released on 2013 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Neutron Detection by N, [gamma] Reactions Using Scintillation Counters by : John W. Kunstadter
Download or read book Thermal Neutron Detection by N, [gamma] Reactions Using Scintillation Counters written by John W. Kunstadter and published by . This book was released on 1949 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Investigations and Oversight Publisher : ISBN 13 : Total Pages :516 pages Book Rating :4.:/5 (318 download)
Book Synopsis Caught by Surprise by : United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Investigations and Oversight
Download or read book Caught by Surprise written by United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Investigations and Oversight and published by . This book was released on 2010 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Zinc Oxide and Related Materials by : Zhe Chuan Feng
Download or read book Handbook of Zinc Oxide and Related Materials written by Zhe Chuan Feng and published by CRC Press. This book was released on 2012-09-26 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through their application in energy-efficient and environmentally friendly devices, zinc oxide (ZnO) and related classes of wide gap semiconductors, including GaN and SiC, are revolutionizing numerous areas, from lighting, energy conversion, photovoltaics, and communications to biotechnology, imaging, and medicine. With an emphasis on engineering and materials science, Handbook of Zinc Oxide and Related Materials provides a comprehensive, up-to-date review of various technological aspects of ZnO. Volume Two focuses on devices and nanostructures created from ZnO and similar materials. The book covers various nanostructures, synthesis/creation strategies, device behavior, and state-of-the-art applications in electronics and optoelectronics. It also provides useful information on the device and nanoscale process and examines the fabrication of LEDs, LDs, photodetectors, and nanodevices. Covering key properties and important technologies of ZnO-based devices and nanoengineering, the handbook highlights the potential of this wide gap semiconductor. It also illustrates the remaining challenging issues in nanomaterial preparation and device fabrication for R&D in the twenty-first century.
Book Synopsis CMOSET Spring 2009 Wireless and Radiation Track Presentation Slides by : CMOS Emerging Technologies Research
Download or read book CMOSET Spring 2009 Wireless and Radiation Track Presentation Slides written by CMOS Emerging Technologies Research and published by CMOS Emerging Technologies. This book was released on with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Proof-of-principle Investigation for a Neutron-gamma Discrimination Technique in a Semiconductor Neutron Detector by : Praneeth Kandlakunta
Download or read book A Proof-of-principle Investigation for a Neutron-gamma Discrimination Technique in a Semiconductor Neutron Detector written by Praneeth Kandlakunta and published by . This book was released on 2012 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin film semiconductors, although transparent to high energy gamma rays, are comparatively sensitive to low energy gamma rays and x-rays. Hence, it is supposed that a thin film semiconductor neutron detector using Gd as a neutron convertor receives greater interference from low energy x-rays that are emitted following gamma ray activation in Gd, than that from high energy background gamma rays. Thus, due to the presence of an inherent gamma ray background, separation of the neutron-induced signal from a gamma/x-ray induced signal is central to a semiconductor neutron detector employing Gd as the conversion material. A method of separation of these two signals by means of a current subtraction technique has been proposed. This gamma ray rejection scheme presents two identical semiconductor detectors separated by a thin Gd foil and a polyethylene thin layer. In the presence of a mixed neutron and gamma ray environment, a subtraction of signals resulting from these two detectors generates a 'neutron only' induced signal.
Book Synopsis Thermal Neutron Detection Using Alkali Halide Scintillators with 6Li and Pulse Shape Discrimination by :
Download or read book Thermal Neutron Detection Using Alkali Halide Scintillators with 6Li and Pulse Shape Discrimination written by and published by . This book was released on 2011 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron-gamma Ray Discrimination Using Normalized Cross Correlation by : Premkumar Chandhran
Download or read book Neutron-gamma Ray Discrimination Using Normalized Cross Correlation written by Premkumar Chandhran and published by . This book was released on 2015 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reduced availability of 3He is a motivation for developing alternative neutron detectors. 6Li-enriched CLYC (Cs2LiYCl6), a scintillator, is a promising candidate to replace 3He. The neutron and gamma ray signals from CLYC have different shapes due to the slower decay of neutron pulses. Some of the well-known pulse shape discrimination techniques are charge comparison method, pulse gradient method and frequency gradient method. In the work presented here, we have applied a normalized cross correlation (NCC) approach to real neutron and gamma ray pulses produced by exposing CLYC scintillators to a mixed radiation environment generated by 137Cs, 22Na, 57Co and 252Cf/AmBe at different event rates. The cross correlation analysis produces distinctive results for measured neutron pulses and gamma ray pulses when they are cross correlated with reference neutron and/or gamma templates. NCC produces good separation between neutron and gamma rays at low ( 100 kHz) to mid event rate (
Download or read book Science & Technology Review written by and published by . This book was released on 2014 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Method for Manufacturing Solid-state Thermal Neutron Detectors with Simultaneous High Thermal Neutron Detection Efficiency (]50%) and Neutron to Gamma Discrimination (]1.0E4). PDF Online Free](https://books.google.com/books/content/images/frontcover/ohZhAQAACAAJ?fife=w200-h370)
![Download Thermal Neutron Detection by N, [gamma] Reactions Using Scintillation Counters PDF Online Free](https://books.google.com/books/content/images/frontcover/kVTGNwAACAAJ?fife=w200-h370)
