A New Method for Reduction of Photomultiplier Signal-Induced Noise PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download A New Method for Reduction of Photomultiplier Signal-Induced Noise PDF full book. Access full book title A New Method for Reduction of Photomultiplier Signal-Induced Noise by Andrea Koble. Download full books in PDF and EPUB format.
Author: Andrea Koble Publisher: ISBN: Category : Atmospheric ozone Languages : en Pages : 30
Book Description
For lidar measurements of ozone, photomultiplier tube (PMT) detector signal-induced noise represents a fundamental problem that complicates the extraction of information from lidar data. A new method is developed to significantly reduce signal-induced noise in lidar receiver PMT detectors. The electron optics of the lidar photomultiplier detector is modified to filter the source of signal-induced noise. A mesh electrode external to the PMT is utilized to control photoemission and disorient electron trajectories from the photocathode to the first dynode. Experiments were taken both with simulated and actual lidar return signals at Langley Research Center. Results show at least 40 percent more accurate ozone number density values with a mesh voltage of 60 V applied than with no voltage applied.
Author: Andrea Koble Publisher: ISBN: Category : Atmospheric ozone Languages : en Pages : 30
Book Description
For lidar measurements of ozone, photomultiplier tube (PMT) detector signal-induced noise represents a fundamental problem that complicates the extraction of information from lidar data. A new method is developed to significantly reduce signal-induced noise in lidar receiver PMT detectors. The electron optics of the lidar photomultiplier detector is modified to filter the source of signal-induced noise. A mesh electrode external to the PMT is utilized to control photoemission and disorient electron trajectories from the photocathode to the first dynode. Experiments were taken both with simulated and actual lidar return signals at Langley Research Center. Results show at least 40 percent more accurate ozone number density values with a mesh voltage of 60 V applied than with no voltage applied.
Author: A. G. Wright Publisher: Oxford University Press ISBN: 0199565090 Category : Business & Economics Languages : en Pages : 639
Book Description
"Photomultipliers are extremely sensitive light detectors with the capability to detect single photons. In multiplying the charge produced by incident light by up to 100 million times, these devices are essential to a wide range of applications, from medical instrumentation to astronomical observations. This complete and authoritative guide will provide...a deeper understanding of the operating principles of these devices." -- Publisher's description, back cover.
Author: C.R. Kitchin Publisher: CRC Press ISBN: 0429956991 Category : Science Languages : en Pages : 466
Book Description
Long used in undergraduate and introductory graduate courses, Astrophysical Techniques, Seventh Edition provides an accessible yet comprehensive account of the innovate instruments, detectors, and techniques employed in astronomy and astrophysics. Emphasizing the underlying unity of all astronomical observations, this popular textbook provides a coherent state-of-the-art account of the instruments and techniques used in current astronomy and astrophysics. Fully updated throughout, this seventh edition builds upon the sixth edition, covering improved techniques and cutting-edge methods in the field, as well as other exciting new developments in gravitational waves, dark matter and energy, the use of photonics, and astronomy education and outreach, in addition to further detailed discussions on the latest scientific instruments and individual detectors. The book is written in a very accessible manner, and most of the mathematics is accessible to those who have attended a mathematics course in their final years at school. Nevertheless, the treatment of the topics in general is at a sufficiently high level to be of use to those professionals seeking technical information in areas of astronomy with which they might not be completely familiar. Key Features: Details the instrumentation and theory of astronomical observations, including radio waves, gamma rays, cosmic rays, neutrinos, gravitational waves and dark matter and energy and more Presents the background theory and operating practice of state-of-the-art detectors and instruments Fully updated to contain the latest technology and research developments
Author: S Ramachandran Publisher: CRC Press ISBN: 1351648454 Category : Science Languages : en Pages : 421
Book Description
This book includes basic knowledge and understanding on the characteristics of aerosols over the continent and oceanic regions, their composition, residence times, sinks and size distributions, and their effects in the radiative transfer and climate of Earth.
Author: John Orcutt Publisher: Springer Science & Business Media ISBN: 1461456843 Category : Science Languages : en Pages : 517
Book Description
Modern Earth System Monitoring represents a fundamental change in the way scientists study the Earth System. In Oceanography, for the past two centuries, ships have provided the platforms for observing. Expeditions on the continents and Earth’s poles are land-based analogues. Fundamental understanding of current systems, climate, natural hazards, and ecosystems has been greatly advanced. While these approaches have been remarkably successful, the need to establish measurements over time can only be made using Earth observations and observatories with exacting standards and continuous data. The 19 peer-reviewed contributions in this volume provide early insights into this emerging view of Earth in both space and time in which change is a critical component of our growing understanding.
Author: Robert Thomas Publisher: CRC Press ISBN: 1000915514 Category : Science Languages : en Pages : 604
Book Description
Written by one of the very first practitioners of ICP-MS, Practical Guide to ICP-MS and Other Atomic Spectroscopy Techniques: A Tutorial for Beginners presents ICP-MS in a completely novel and refreshing way. By comparing it with other complementary atomic spectroscopy (AS) techniques, it gives the trace element analysis user community a glimpse into why the technique was first developed and how the application landscape has defined its use today, 40 years after it was first commercialized in 1983. What’s new in the 4th edition: Updated chapters on the fundamental principles and applications of ICP-MS New chapters on complementary AS techniques including AA, AF, ICP-OES, MIP-AES, XRF, XRD, LIBS, LALI-TOFMS Strategies for reducing errors and contamination with plasma spectrochemical techniques Comparison of collision and reaction cells including triple/multi quad systems Novel approaches to sample digestion Alternative sample introduction accessories Comprehensive glossary of terms used in AS New vendor contact information The book is not only suited to novices and beginners, but also to more experienced analytical scientists who want to know more about recent ICP-MS developments, and where the technique might be heading in the future. Furthermore, it offers much needed guidance on how best to evaluate commercial AS instrumentation and what might be the best technique, based on your lab’s specific application demands.
Author: Andrea Koble
Author: Andrea Koble
Author: 
Author: A. G. Wright
Author: C.R. Kitchin
Author: S Ramachandran
Author: 
Author: John Orcutt
Author: 
Author: Robert Thomas
Author: