X Band Solid State Detector Amplifier

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X Band Solid State Detector Amplifier

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Author : J. J. Brule
language : en
Publisher:
Release Date : 1965

X Band Solid State Detector Amplifier written by J. J. Brule and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with categories.

Components and techniques for application in small lightweight X-Band detector-amplifier circuits were reviewed and evaluated. Specific areas of investigation included: backward diode mixers; 'starved mixer operation'; low noise transistorized I.F. preamplifiers; an I.F. parametric amplifier; tunnel-diode local oscillators; a tunnel-diode self-oscillating mixer; and low noise R.F. pre-amplifiers. High power diode limiters which require no control voltages were developed in waveguide and strip transmission line. Integrated mixer/I.F. preamplifier assemblies with an overall noise figure of 8.0 db were realized. A compact solid-state local oscillator using a 'snap-off' diode as a high order multiplier and providing an output power of 10 mwatts was developed. Also, a tunnel-diode self-oscillating mixer with integral I.F. pre-amplifier assembly was designed. Engineering test models of three solid-state detector-amplifier circuits were fabricated and tested. Overall noise figures ranging from 11.0 db to 8.0 db were obtained. The physical and performance characteristics of several detector-amplifier circuits were evaluated and compared; and relationships between noise figure and weight and noise figure and cost were derived. (Author).

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1975

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Aeronautics categories.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Government Wide Index To Federal Research Development Reports

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Author :
language : en
Publisher:
Release Date : 1965

Government Wide Index To Federal Research Development Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Government publications categories.

U S Government Research Reports

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Author :
language : en
Publisher:
Release Date : 1964

U S Government Research Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with categories.

Technical Abstract Bulletin

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Author :
language : en
Publisher:
Release Date :

Technical Abstract Bulletin written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Science categories.

Portable Low Cost Amplifier For A Solid State Radiation Detector

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Author : Justin Andrew Didier
language : en
Publisher:
Release Date : 2017

Portable Low Cost Amplifier For A Solid State Radiation Detector written by Justin Andrew Didier and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Amplifiers (Electronics) categories.

Geiger-Mueller Counters filled with 3He have been the standard for detecting neutrons for many years, but the system is expensive, requires high voltage and has limited size scalability. Using solid state radiation detectors provides a significant improvement in cost, size, and performance. The widespread deployment of solid state neutron detector systems will require development of a low power and low cost amplifier. A previously described amplifier design was evaluated, but its high power consumption and BOM cost per diode area of $0.69/mm2 made it impractical for a portable and cost effective application. The proposed amplifier design is based on using off-the- shelf components and consumes less current, provides higher gain with higher signal-to-noise ratio, more tolerance to higher diode capacitance than previous amplifiers and a BOM cost per diode area of $0.026/ mm2.

Measurement Of Nuclear Radiation With Semiconductor Detectors

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Author : D. N. Poenaru
language : en
Publisher:
Release Date : 1969

Measurement Of Nuclear Radiation With Semiconductor Detectors written by D. N. Poenaru and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Science categories.

CONTENTS - MAIN NOTATIONS - CONTENTS - CHAPTER I. - INTERACTION OF THE NUCLEAR RADIATION WITH MATTER - 1.1. Interaction of heavy charged particles with matter - 1.2. Passage of electrons through matter - 1.3. Interaction processes of gamma and X-rays - 1.4. Interaction processes of neutrons - 1.5. Conclusions - CHAPTER II. - FUNDAMENTAL PROCESSES IN SEMICONDUCTORS AND METALS - 2.1. Schrödinger equation. The particle inside the potential well - 2.2. The hydrogen atom - 2.3. Theory of the periodic system of elements - 2.4. Electrons in crystals - 2.5. Effective mass - 2.6. Energy bands - 2.7. Statistical distributions - 2.8. Equilibrium density of charge carriers in semiconductors - 2.9. Transport phenomena - 2.10. Recombination phenomena - 2.11. P-N junction - 2.12. Phenomena at the metal-semiconductor interface - CHAPTER III. - WORKING PRINCIPLES OF NUCLEAR RADIATION SEMICONDUCTOR DETECTORS - 3.1. Charge-carrier injection. The mean energy for electron-hole pair production - 3.2. The drift of charge-carriers in the electric field. The shape of the current and voltage pulse given by the collection of a single pair. - 3.3. Collection time of electron-hole pairs in a P-N abrupt junction - 3.4. Collection time of electron-hole pairs in coaxial Ge (Li) detectors - 3.5. Influence of SD equivalent circuit elements on the voltage and current pulse shape - 3.6. Collection of charge-carriers in real devices - 3.7. Collection of electric charges by diffusion from outside the depletion layer - 3.8. Detector noise - 3.9. Detector energy resolution - CHAPTER IV - CHARACTERISTICS OF SEMICONDUCTOR DETECTORS - 4.1. Electrical characteristics - 4.2. Detection characteristics - 4.3. Effects of temperature, magnetic field and light on the semiconductor detector characteristics - 4.4. Detector sensitivity to neutrons and gamma-rays - 4.5. Effects of radiation damage on detector characteristics - CHAPTER V - SEMICONDUCTOR DETECTOR TYPES - 5.1. Methods for obtaining high electric fields in semiconductors - 5.2. Homogeneous semiconductor detectors - 5.3. Diffused N-P junction detectors - 5.4. Surface-barrier detectors - 5.5. Guard-ring detectors - 5.6. Totally depleted detectors - 5.7. Neutron detectors - 5.8. Special detectors - 5.9. NIP detectors - CHAPTER VI - AMPLIFICATION OF SEMICONDUCTOR DETECTOR ELECTRIC PULSES - 6.1. Electric charge to voltage pulse conversion - 6.2. Charge-sensitive-preamplifier-noise specification and measurement - 6.S. Amplifier-noise sources - 6.4. Effects of amplifier shaping circuits on noise spectra - 6.5. RC-RC amplifier signal to noise ratio - CHAPTER VII - SEMICONDUCTOR DETECTOR ASSOCIATED ELECTRONICS - 7.1. Spectrometers with semiconductor detectors - 7.2. Charge sensitive preamplifiers - 7.3. Main amplifier - 7.4. Amplitude analyser and expander - 7.5. High amplitude stability pulse generator - 7.6. Transistorized apparatus - APPENDIX A I: Basic properties of Si and Ge - APPENDIX A II: Main natural and artificial alpha sources - APPENDIX A III: Analysis of some circuits used in charge sensitive preamplifiers - REFERENCES -

Deep Space Communications

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Author : Jim Taylor
language : en
Publisher: John Wiley & Sons
Release Date : 2016-08-29

Deep Space Communications written by Jim Taylor and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-29 with Technology & Engineering categories.

DEEP SPACE COMMUNICATIONS A COLLECTION OF SOME OF THE JET PROPULSION LABORATORY’S SPACE MISSIONS SELECTED TO REPRESENT THE PLANETARY COMMUNICATIONS DESIGNS FOR A PROGRESSION OF VARIOUS TYPES OF MISSIONS The text uses a case study approach to show the communications link performance resulting from the planetary communications design developed by the Jet Propulsion Laboratory (JPL). This is accomplished through the description of the design and performance of six representative planetary missions. These six cases illustrate progression through time of the communications system’s capabilities and performance from 1970s technology to the most recent missions. The six missions discussed in this book span the Voyager for fly-bys in the 1970s, Galileo for orbiters in the 1980s, Deep Space 1 for the 1990s, Mars Reconnaissance Orbiter (MRO) for planetary orbiters, Mars Exploration Rover (MER) for planetary rovers in the 2000s, and the MSL rover in the 2010s. Deep Space Communications: Provides an overview of the Deep Space Network and its capabilities Examines case studies to illustrate the progression of system design and performance from mission to mission and provides a broad overview of the mission systems described Discusses actual flight mission telecommunications performance of each system Deep Space Communications serves as a reference for scientists and engineers interested in communications systems for deep-space telecommunications link analysis and design control.

Semiconductor X Ray Detectors

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Author : B. G. Lowe
language : en
Publisher: CRC Press
Release Date : 2013-12-07

Semiconductor X Ray Detectors written by B. G. Lowe and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-07 with Science categories.

This book focuses on the history and development of Si(Li) X-Ray Detectors, while providing an up-to-date review of the principles, practical applications, and state of the art of semiconductor x-ray detectors. It describes many of the facets of x-ray detection and measurement using semiconductors, from manufacture to implementation. The initial chapters summarize relevant background physics, materials science, and engineering aspects. Later chapters compare and contrast the manufacture and physical properties of systems and materials currently employed, enabling readers to fully understand the materials and scope for applications.

Ka Band Wide Bandgap Solid State Power Amplifier

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-24

Ka Band Wide Bandgap Solid State Power Amplifier written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-24 with categories.

Motivated by recent advances in wide-bandgap (WBG) gallium nitride (GaN) semiconductor technology, there is considerable interest in developing efficient solid-state power amplifiers (SSPAs) as an alternative to the traveling-wave tube amplifier (TWTA) for space applications. This article documents proof-of-concept hardware used to validate power-combining technologies that may enable a 120-W, 40 percent power-added efficiency (PAE) SSPA. Results in previous articles [1-3] indicate that architectures based on at least three power combiner designs are likely to enable the target SSPA. Previous architecture performance analyses and estimates indicate that the proposed architectures can power combine 16 to 32 individual monolithic microwave integrated circuits (MMICs) with >80 percent combining efficiency. This combining efficiency would correspond to MMIC requirements of 5- to 10-W output power and >48 percent PAE. In order to validate the performance estimates of the three proposed architectures, measurements of proof-of-concept hardware are reported here. Epp, L. and Khan, P. and Silva, A. Glenn Research Center; Jet Propulsion Laboratory IPN-PR-42-163