Download or read book Development of an Ion Time of flight Spectrometer for Neutron Depth Profiling written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Conventional and Time of flight Neutron Depth Profiling at Cornell written by Zhiqiang Li and published by . This book was released on 2002 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development and Applications of Time of Flight Neutron Depth Profiling written by and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The depth profiles of intentional or intrinsic constituents of a sample provide valuable information for the characterization of materials. For example, the subtle differences in spatial distribution and composition of many chemical species in the near surface region and across interfacial boundaries can significantly alter the electronic and optical properties of materials. A number of analytical techniques for depth profiling have been developed during the last two decades. neutron Depth Profiling (NDP) is one of the leading analytical techniques. The NDP is a nondestructive near surface technique that utilizes thermal/cold neutron beam to measure the concentration of specific light elements versus their depth in materials. The depth is obtained from the energy loss of protons, alphas or recoil atoms in substrate materials. Since the charged particle energy determination using surface barrier detector is used for NDP, the depth resolution is highly dependent on the detectors an d detection instruments. The depth resolutions of a few tens of nm are achieved with available NDP facilities in the world. However, the performance of NDP needs to be improved in order to obtain a few A depth resolutions.

Download or read book The Development and Evaluation of Recoil nucleus Time of flight Neutron Depth Profiling written by John Francis Welsh and published by . This book was released on 1996 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Dissertation Abstracts International written by and published by . This book was released on 2009 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Development and Application of Time resolved Ion Momentum Spectrometry written by John Timothy Stults and published by . This book was released on 1985 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book University of Michigan Official Publication written by University of Michigan and published by UM Libraries. This book was released on 1989 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each number is the catalogue of a specific school or college of the University.

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:

Download or read book Fusion Energy Update written by and published by . This book was released on 1979 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Ion Time of flight Spectrometer with Mass Analysis written by Michael Daniel Burrows and published by . This book was released on 1979 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1994 with total page 1162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book College of Engineering written by University of Michigan. College of Engineering and published by UM Libraries. This book was released on 1992 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book DEVELOPMENT OF A TIME OF FLIGHT SPECTROMETER AND ITS APPLICATION TO THE REACTION ARGON 40 HELIUM 3 NEUTRON CALCIUM 42 written by JAY FRANKLIN PETERSEN and published by . This book was released on 1974 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 1976 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A High Resolution Time of Flight Spectrometer for Fission Fragments and Ion Beams written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. A quantitive understanding of the nucleosynthesis process requires the knowledge of the production rates, the masses and the?-decay characteristics of exotic neutron-rich nu- clei. Nuclear fission is a suitable method of producing such nuclei with masses from 60 - 150. Neutron-rich nuclei close to the r-process path can be produced via photo-fission at the Rossendorf superconducting linear accelerator of high brilliance and low emittance (ELBE) or by means of nuclear reactions at relativistic energies (for example at GSI). If the fission prod- ucts are identified and also their charge numbers are obtained, it will be principally possible to investigate their structure by means of beta-gamma spectroscopy. 2. For the purpose of fission-fragment detection a double time-of-flight (TOF) spectrometer has been developed. The key component of the TOF spectrometer is a TOF detector consisting of multichannel-plate (MCP) detectors with a position-sensitive readout, a foil for secondary electron (SE) production and an electrostatic mirror. The fission fragments are detected by measuring the SEs impinging on the position-sensitive anode after emission from the foil, ac- celeration and deflection by the electrostatic mirror. 3. In the first part of the work, special attention is paid to the relevant methods of building a spectrometer of such type. The functionality of the different detector components is proven in detail. A unique method for the determination of the SE foil thickness with?-particles is pre- sented. Values for the mirror transmission and scattering are deduced. A dedicated SIMION 3D simulation showed that introducing serpentine like wires with pitch distance of 1 mm is capable of providing transparency of more than 90% without significant impact on the time resolution. 4. Since the performance of the MCP detectors is crucial, optimised schemes for their high- voltage supplies have been implemented successfully. Further enhancement of the setup was achieved b.