Download or read book Investigation of High Z Plasmas as Extreme Ultraviolet and Soft X ray Sources written by and published by . This book was released on 2014 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Laser Produced Heavy Ion Plasmas as Efficient Soft X Ray Sources written by Takeshi Higashiguchi and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We demonstrate extreme ultraviolet (EUV) and soft x-ray sources in the 2- to 7 -nm spectral region related to the beyond extreme ultraviolet (BEUV) question at 6.x nm and a water window source based on laser-produced high-Z plasmas. Strong emissions from multiply charged ions merge to produce intense unresolved transition array (UTA) toward extending below the carbon K-edge (4.37 nm). An outline of a microscope design for single-shot live- cell imaging is proposed based on a high-Z UTA plasma source, coupled to x-ray optics. We will discuss the progress and Z-scaling of UTA emission spectra to achieve lab-scale table-top, efficient, high-brightness high-Z plasma EUV-soft x-ray sources for in vivo bio-imaging applications.
Download or read book Intense XUV Extreme Ultraviolet Radiation Sources written by M. L. Ginter and published by . This book was released on 1985 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the research, characterizations were performed of the Extreme Ultraviolet outpit of our laser produced plasma system in the 30-1200 A region and have used the system for preliminary studies in high resolution spectroscopy in the grazing incidence region and in soft x ray microlithography. Contents: Laser Produced Plasma Light Sources; XUV and soft x ray Radiation from Laser Produced Plasmas as Laboratory Spectroscopic Sources Laser Produced Plasma Light Sources for High Resolution XUV and VUV Spectroscopy; Soft x ray Lithography using Radiation From Laser Produced Plasmas; Laser Produced Plasma Light Sources for High Resolution XUV and VUV Spectroscopy; High Resolution Spectra of Laser Plasma Light Sources in the Grazing Incidence Region; and Photometric Investigation of a Laser Produced Plasma VUV Light Source.
Download or read book X Rays and Extreme Ultraviolet Radiation written by David Attwood and published by Cambridge University Press. This book was released on 2016 with total page 655 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master the physics and understand the current applications of modern X-ray and EUV sources with this fully updated second edition.
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extreme Ultraviolet and Soft X ray Diagnostics of High temperature Plasmas Progress Report written by and published by . This book was released on 1986 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes recent progress and plans for calendar year 1987 in the Johns Hopkins University program to develop and improve spectroscopic diagnostics for the high temperature plasmas used in magnetic fusion research. An EUV spectrograph which provides time resolved spectra along fifteen chords of a plasma device has been completed and evaluation on DIII-D will began in late 1986. Other instrumentation work includes the evaluation of a sensitive detector for ion temperature/velocity distribution determinations and a feasibility study of Zeeman polarimetry for determining magnetic fields. A comprehensive data set taken on the TEXT tokamak is undergoing analysis as a means of improving the ionic parameters used in diagnostic studies and to expand the capabilities of existing instruments. Potential new advanced in spectroscopic technology are being monitored to determine if they provide advantages for fusion research.
Download or read book Laser generated and Other Laboratory X ray and EUV Sources Optics and Applications written by George A. Kyrala and published by SPIE-International Society for Optical Engineering. This book was released on 2004 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
Download or read book Extreme Ultraviolet and Soft X ray Diagnostics of High temperature Plasmas Annual Progress Report June 1 1976 May 31 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of the research program at this laboratory from mid February 1976 until January 31, 1977, are described. The four major research areas of the program: diagnostic studies of magnetically confined high temperature plasmas, supporting laboratory studies, theoretical studies of highly ionized atoms, and instrument development are discussed. Spatially resolved ultraviolet measurements on Elmo Bumpy Torus have determined impurity confinement times. The measured oxygen densities and fluxes are being determined at Alcator; the spectroscopic studies show that hydrogen discharges in this tokamak have an effective Z close to one. A laboratory study of the Penning discharge between 100 and 300 A shows that it is a bright source for evaluation of EUV diagnostic instrumentation. Design of a multispatial element spectrometer system is complete and construction has begun. A spectrophotometer compatible with both types of facilities is available for absolute intensity calibration transfer from the NBS SURF II facility to ERDA plasma facilities. Computer programs needed for relativistic calculation of transition probabilities and wavelengths have been completed and applied to calculations in the Li, Be, Ar, and K isoelectronic sequences.
Download or read book Extreme Ultraviolet and Soft X ray Diagnostics of High temperature Plasmas written by and published by . This book was released on 1986 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes recent progress and plans for calendar year 1987 in the Johns Hopkins University program to develop and improve spectroscopic diagnostics for the high temperature plasmas used in magnetic fusion research. An EUV spectrograph which provides time resolved spectra along fifteen chords of a plasma device has been completed and evaluation on DIII-D will began in late 1986. Other instrumentation work includes the evaluation of a sensitive detector for ion temperature/velocity distribution determinations and a feasibility study of Zeeman polarimetry for determining magnetic fields. A comprehensive data set taken on the TEXT tokamak is undergoing analysis as a means of improving the ionic parameters used in diagnostic studies and to expand the capabilities of existing instruments. Potential new advanced in spectroscopic technology are being monitored to determine if they provide advantages for fusion research.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extreme Ultraviolet and Soft X ray Diagnostics of High temperature Plasmas Annual Progress Report June 1 1975 May 31 1976 written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The report discusses the four major research areas of this program: diagnostic studies of CTR plasmas, laboratory spectroscopy and calibration at short wavelengths, theoretical computation of transition probabilities for highly ionized atoms, and instrument development for short wavelength studies of CTR devices. Using existing instruments, diagnostic studies are under way at Versator and Elmo Bumpy Torus. A facility has been completed for the sensitivity calibration of spectrometers down to 300 A as complete units. The development of computer programs necessary for transition probability calculations is ninety percent complete. An f/20 forty cm focal length concave grating spectrometer has been constructed utilizing very high vacuum techniques to reduce contamination of plasma devices and calibration sources such as SURF II at NBS. New designs for grazing incidence monochromators have been developed.
Download or read book Low and Mid Z EUV Spectroscopy of High Temperature Plasmas written by Penka Georgieva Wilcox and published by . This book was released on 2011 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extreme ultraviolet (EUV) spectroscopy has proven to be an essential tool for plasma diagnostics, both of laboratory and astrophysical plasmas. Exploitation of the EUV and soft x-ray (SXR) spectral regions is very promising but a relatively recent and challenging area of study. While these ranges are more difficult to access, due to the harsh environment and the plentitude of atomic resonances and photoabsorption, they provide very sensitive tools for elemental and chemical identification, thus creating many scientific and technological opportunities. In this dissertation, a comprehensive spectroscopic study of EUV/SXR radiation from variety of low- and mid-Z plasmas was accomplished by the author. The emphasis was on application of the newly developed non-Local Thermodynamics Equilibrium (non-LTE) models of various elements (Li, C, B, N, O, F, Al, and Ni) for studying radiative properties of different high temperature plasmas. In addition, relativistic atomic data calculations, including dielectronic recombination and satellite lines of Ni ions, that implement several different codes and take into account a large number of configurations to assure accuracy, were performed. The applications of models to following experiments were considered: NSTX at Princeton, SSPX and EBIT at LLNL, and "Sparky" laser plasma and NTF Zebra Z-pinch experiments at UNR. As a result, the spectral features of EUV/SRX experimental radiation generated under various plasma conditions were compared and analyzed: from NSTX tokamak (at relatively low electron densities of 1013 -1014 cm−3) to the laser-produced and Z-pinch plasma spectra (at higher electron densities of 1018 -102° cm−3) and at various electron temperatures - from as low as 20 eV up to 300 eV. These investigated low- and mid-Z high resolution experimental data help to benchmark and improve our spectroscopic models and theory.
Download or read book Soft X Rays and Extreme Ultraviolet Radiation written by David Attwood and published by Cambridge University Press. This book was released on 2007-02-22 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: This detailed, comprehensive book describes the fundamental properties of soft X-rays and extreme ultraviolet (EUV) radiation and discusses their applications in a wide variety of fields, including EUV lithography for semiconductor chip manufacture and soft X-ray biomicroscopy. The author begins by presenting the relevant basic principles such as radiation and scattering, wave propagation, diffraction, and coherence. He then goes on to examine a broad range of phenomena and applications. The topics covered include spectromicroscopy, EUV astronomy, synchrotron radiation, and soft X-ray lasers. The author also provides a wealth of useful reference material such as electron binding energies, characteristic emission lines and photo-absorption cross-sections. The book will be of great interest to graduate students and researchers in engineering, physics, chemistry, and the life sciences. It will also appeal to practising engineers involved in semiconductor fabrication and materials science.
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controlling the Quantum World written by National Research Council and published by National Academies Press. This book was released on 2007-06-21 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of the Physics 2010 decadal survey project, the Department of Energy and the National Science Foundation requested that the National Research Council assess the opportunities, over roughly the next decade, in atomic, molecular, and optical (AMO) science and technology. In particular, the National Research Council was asked to cover the state of AMO science, emphasizing recent accomplishments and identifying new and compelling scientific questions. Controlling the Quantum World, discusses both the roles and challenges for AMO science in instrumentation; scientific research near absolute zero; development of extremely intense x-ray and laser sources; exploration and control of molecular processes; photonics at the nanoscale level; and development of quantum information technology. This book also offers an assessment of and recommendations about critical issues concerning maintaining U.S. leadership in AMO science and technology.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Capillary Discharge Extreme Ultraviolet Lasers Colorado State Univ Ft Collins written by and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The project objective is to explore the generation of soft X-ray laser radiation in a plasma column created by a fast capillary discharge. The proposed capillary lasing scheme offers the potential for compact, simple and efficient soft X-ray laser sources. For this purpose a compact, fast pulse generator which produces 100 kA current pulses with a risetime of 11 ns was constructed. Initial experiments were conducted in evacuated capillaries, in which the plasma is produced by ablation of the capillary walls. The soft X-ray emission from discharges in polyethylene capillary channels was studied to investigate the possibility of amplification in the 3-2 transition of C VI, at? = 18.2 nm. Time-resolved spectra in which this transition appears anomalously intense with respect to the 4--2 transition of the same ion were obtained. To date, however, this phenomenoa could not be confirmed as gain, as the intensity of the 18.2 nm line has not been observed to increase exponentially as a function of the capillary length. Encouraging results were obtained by fast pulse discharge excitation of capillaries filled with preionized gas. High temperature (Te> 150 eV), small diameter ( -200?m) plasma columns were efficiently generated. Fast current pulse excitation of a selected low mass density of uniformly preionized material Mag the capillary was observed to detach rapidly the plasma from the capillary walls, and form a plasma channel of a diameter much smaller and significantly hotter than those produced by a similar current pulse in evacuated capillaries of the same size. Discharges in argon-filled capillaries at currents between 20 and 60 kA produced plasmas with ArX-Ar{sub XIV} line emission, and with spectra that are similar to those of plasmas generated by> I MA current implosions in large pulsed power machines. The characteristic of these plasmas approach those necessary for soft X-ray amplification in low Z elements.
