Download or read book Recent improvements in Thomson scattering written by M. S. Tillack and published by . This book was released on 1980 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Improvements in Thomson Scattering Data Analysis written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new profile analysis package for use with the Thomson scattering data on ISX-B has recently been implemented. The primary feature of this package is a weighted least squares fitting of temperature and density data to generate a representative curve, as opposed to the previous hand-fitting technique. The changes will automate the manner in which data are transmitted and manipulated, without affecting the calculational techniques previously used. The computer programs have also been used to estimate the sensitivity of various plasma quantities to the accuracy of the Thomson scattering data.

Download or read book Fusion Energy Update written by and published by . This book was released on 1979 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent advances in Thomson scattering written by and published by . This book was released on 1982 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of the Effects of Photon Statistics on Thomson Scattering Data written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer code has been developed which simulates the counting statistics of a Thomson scattering measurement. The scattered and background signals in each of the wavelength channels are assumed to obey Poisson statistics, and the spectral data are fitted to a Gaussian curve using a nonlinear least-squares fitting algorithm. This method should be applicable to Thomson scattering measurements in which the signal-to-noise ratio is low due to low signal or high background. Thomson scattering data from the S-1 Spheromak have been compared to this simulation, and they have been found to be in good agreement. This code has proved to be useful assessing the effects of counting statistics relative to shot-to-shot variability in producing the observed spread in the data. It was also useful for designing improvements for the S-1 Thomson scattering system, and this method would be applicable to any measurements affected by counting statistics. 5 refs., 1 fig.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Data Analysis in Astronomy III written by V. di Gesù and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the book are reported the main results presented at the Third International Workshop on Data Analysis in Astronomy, held at the EUore Majorana Center for Scientific Culture, Erice, Sicily, Italy, on June 20-27,1988. The Workshop was the natural evolution of the two previous ones. The main goal of the first edition (Erice 1984) was to start a scientific interaction between Astronomers and Computer Scientists. Aim of the second (Erice 1986) was to look at the progress in data analysis methods and dedicated hardware technology. Data analysis problems become harder whenever the data are poor in statistics or the signal is weak and embedded in structured background. Experiments collecting data of such a nature require new and non-standard methodologies. Possibilistic approaches could be merged with the statistical ones, in order to formalize all the knowledge used by the scientists to reach conclusions. Moreover, the last decade has been characterized by very fast developments of Intelligent Systems for data analysis (knowledge based systems, ... ) that would be useful to support astronomers in complex decision making. For these reasons, the last edition of the workshop was intended to provide an overview on the state of the art in the data analysis methodologies and tools in the new frontieres of the astrophysics (y-astronomy, neutrino astronomy, gravitational waves, background radiation and extreme cosmic ray energy spectrum). The book is organized in two sections: - Data analysis methods and tools, - New frontieres in astronomy.

Download or read book Thomson Scattering Diagnostic Analyses to Determine the Energetic Particle Distributions in TFTR Final Report written by and published by . This book was released on 1995 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lodestar has been an active participant in the low power Collective Thomson Scattering (CTS) diagnostic at TFTR in collaboration with MIT. Extensive studies were conducted regarding the use of gyrotron scattering as a low cost diagnostic for both energetic ions and alpha particles on TFTR. The numerical scattering code has been improved and compared with similar code developed at JET. The authors have participated and assisted in the CTS experiments through onsite visits and have successfully performed most of the data analysis tasks remotely. Through their analysis on the initial data base accumulated, they are able to understand qualitatively the general features of the anomalous large scattered signal, have proposed an explanation for its generation mechanism, and have suggested a potential new use of CTS as an edge diagnostic.

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the Effects of Photon Statistics on Thomson Scattering Data written by G. W. Hart and published by . This book was released on 1985 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spectral Multiplexing on the HSX Thomson Scattering Diagnostic written by Wayne R. Goodman and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thomson scattering is a fundamental diagnostic tool in high-temperature plasma experiments, providing crucial measurements of electron temperature and density profiles. The operation of Thomson scattering diagnostics involves the propagation of an intense radiation beam through an ionized plasma, with the scattered light from free electrons within the plasma being analyzed. The spectral content of this scattered light contains information on the temperature and density of the plasma under observation. In this work, sources of error are derived and deconstructed for a Thomson scattering system, focusing on three key factors that influence measurement uncertainty: the number of primary photoelectrons generated per pulse, the uncertainty arising from the non-ideal nature of the physical detection apparatus, and the analysis routine's ability to converge on a correct solution. Meticulous examination of these error terms has led to a significant redesign of the Thomson Scattering system at the Helically Symmetric eXperiment (HSX). This redesign, aimed at reducing noise susceptibility while increasing system bandwidth and gain, has involved electronic upgrades and the development of a new signal analysis routine. Results from testing are promising, showing that the redesigned detection electronics and analysis routine have significantly decreased measurement errors compared to the previous diagnostic setup. This work goes beyond systematic improvements, focusing on enhancing the quality and content of measured data without increasing the required number of spectral channels, leading to the development of a novel spectral analysis technique, Thomson Scattering Spectral Multiplexing (TSSM). In a standard Thomson scattering diagnostic, scattered light is divided into wide spectral bands by a filter polychromator equipped with three to eight single bandpass filters. TSSM leverages advanced filters with multiple spectral bands to efficiently utilize Thomson scattered spectra. The results of implementing two TSSM filter sets on the HSX Thomson scattering diagnostic show a reduction in measurement uncertainty and an increased range of electron temperature measurements compared to a filter set with an equivalent number of spectral channels. As a result of this work, the Thomson scattering diagnostic on HSX is now performing at a previously thought unachievable level.

Download or read book Advances In Geosciences A 4 volume Set Volume 30 Planetary Science Ps And Solar Terrestrial Science St written by Anil Bhardwaj and published by World Scientific. This book was released on 2012-08-08 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This invaluable volume set of Advances in Geosciences continues the excellent tradition of the Asia-Oceania scientific community in providing the most up-to-date research results on a wide range of geosciences and environmental science. The information is vital to the understanding of the effects of climate change and extreme weather on the most populated regions and fastest moving economies in the world. Besides, these volumes also highlight original papers from many prestigious research institutions which are conducting cutting edge studies in atmospheric physics, hydrogical science and water resource, ocean science and coastal study, planetary exploration and solar system science, seismology, tsunamis, upper atmospheric physics and space science.

Download or read book Electron Cyclotron Emission and Electron Cyclotron Resonance Heating EC 16 written by Ronald Prater and published by World Scientific. This book was released on 2011 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume, the sixteenth in a biannual series, presents a snapshot of the state of current research worldwide on Electron Cyclotron Emission (ECE) and Electron Cyclotron Resonance Heating (ECRH) and related technologies. The papers address the physics, both theory and experiment, of ECE and ECRH. The technologies of high power millimeter-wave sources ? gyrotrons ? and transmission lines and launchers are included. The focus is on physics and technology relevant to the research and development of nuclear fusion.

Download or read book Electron Cyclotron Emission And Electron Cyclotron Resonance Heating Ec 16 Proceedings Of The 16th Joint Workshop With Cd rom written by Ronald Prater and published by World Scientific. This book was released on 2011-02-21 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume, the sixteenth in a biannual series, presents a snapshot of the state of current research worldwide on Electron Cyclotron Emission (ECE) and Electron Cyclotron Resonance Heating (ECRH) and related technologies. The papers address the physics, both theory and experiment, of ECE and ECRH. The technologies of high power millimeter-wave sources — gyrotrons — and transmission lines and launchers are included. The focus is on physics and technology relevant to the research and development of nuclear fusion.

Download or read book INIS Atomindex written by and published by . This book was released on 1987 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Plasma Physics Research written by Francois Gerard and published by Nova Publishers. This book was released on 2001 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Plasma Physics Research

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: