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A Study of Self-Sustaining Thin-Films As a Means of Fusion Plasma
A STUDY OF SELF-SUSTAINING THIN-FILMS AS A MEANS OF FUSION PLASMA IMPURITY AND WALL EROSION CONTROL A THESIS Presented to The Faculty of the Division of Graduate Studies By A. Bruce DeWald, Jr. In Partial Fullfillment of the Requirements for the Degree of Doctor of Philosophy in the School of Nuclear Engineering Georgia Institute of Technology November 12, 1984 Copyright (c) 1984 by A. Bruce DeWald, Jr. Thesis 'A Study of Secondary Ion-Emitting, Self-Sustaining Thin Films as a Means of Fusion Plasma Impurity and Wall Erosion Control" Approved: U I \l/\ 9^ //htf£+\ (At 7^^, y Dr. Weston M. Stacey, Jr., Chairman CJ sjjuvki J<5'tfifyfyitlii Dr. R. Glenn Bateman CIS*** Si'• (I)L\^LL^\ Dr. Alan R. Kraus Josejfn D. Clement 1 TABLE OF CONTENTS Page ACKNOWLEDGEMENTS iv LIST OF ILLUSTRATIONS v SUMMARY xi Chapter I. INTRODUCTION 1.1 Impurity/Erosion Mechanism/Control Review 1.2 Thesis Proposal and Scope 1.3 Relevant Mechanics/Kinetics Review II. THE SHEATH MODEL 23 2. 1 Introduction 2.2 Plasma Sheath Geometry 2.3 Particle Trajectory Model 2.4 Particle Density Calculation 2.5 Initial Conditions 2.6 Electric-Field Solution 2.7 Secondary Electron Emission 2.8 Reflected Ions 2.9 Secondary-Ion Emission 2.10 Summarization of Sheath Model Development 2.11 Sheath Model Verification 2.12 Wal1 Impact Angle 2.13 Secondary/Reflective Particle Effects III. THE SPUTTERING MECHANICS 86 3.1 Introduction 3.2 Geometrical Considerations 3.3 Scattering Mechanics 3.4 Interatomic Potential 3.5 Inelastic Energy Loss 3.6 Cascade Atom Energy Requirements Ill 3.7 Planar Potential 3.8 Displacements 3.9 Summarization of Sputtering Mechanics Development 3.10 Verification of the Sputtering Mechanics IV. -
Anirudha Sumant Center for Nanoscale Materials Building 440, Room A-127 Materials Scientist Phone: 630-252-4854 Nanofabrication and Devices Group Fax: 630-252-5739
Argonne National Laboratory 9700 S Cass Ave., Argonne, IL 60439 Anirudha Sumant Center for Nanoscale Materials Building 440, Room A-127 Materials Scientist Phone: 630-252-4854 Nanofabrication and Devices Group Fax: 630-252-5739 E-mail: [email protected] LinkedIn Profile: http://www.linkedin.com/in/anisumant Argonne National Laboratory 9700 S Cass Ave., Argonne, IL 60439 Ph.D. Electronic Science, University of Pune, India 1998 Education M.Sc. Electronic Science, University of Pune, India 1993 B.Sc. Physics, University of Pune, India 1991 Awards 2018 National Innovation Award from Techconnect on Portable Ultrananocrystalline Diamond based Field Emission Electron Sources for Linear Accelerators and Honors Pacesetter Award, Argonne National Laboratory, 2018 Top 100 finalist Chicago Innovation Award 2017 Pinnacle of Education Award from Board of Governors for Argonne National Laboratory for teaching youth nanotechnology and developing Next Gen STEM Kit 2017 National Innovation Award from TechConnect on developing wafer-scale method to grow single and multilayer graphene on dielectric substrate in 1 min 2016 National Innovation Award from TechConnect on developing graphene-nanodiamond based solution to achieve superlubricity 2014 R&D 100 Award for the development of NanofabLab…in a Box 2014 NASA Tech Brief Magazine Award for NanofabLab…in a Box. 2013 R&D 100 Award for the development of Miraj Diamond Platform 2013 R&D Award for the development of Nanocrystalline diamond Coating for Microdrill 2011 R&D 100 Award for the development of Integrated RF MEMS Switch/CMOS Device based on Ultrananocrystalline Diamond Senior Editor of IEEE-eNano Listed in Who’s Who in America 62nd edition 2008. -
Development of Ultrananocrystalline Diamond (UNCD) Coatings
Development of Ultrananocrystalline Diamond (UNCD) Coatings Presented by Jeffrey Elam Argonne National Laboratory Materials, Sensors & Automation, and Glass Project Review June 21-24, 2004 Arlington, Virginia A U.S. Department of Energy Office of Science Laboratory Operated by The University of Chicago Office of Science U.S. Department of Energy Project Summary • Goal: - Use UNCD to achieve significant energy savings in IOF industries - First application – SiC multipurpose mechanical pump seals • Challenge: - Develop technology to take UNCD from laboratory to market application - Need to mass produce UNCD coated parts • Benefits: - Improved wear resistance and corrosion resistance of UNCD coated parts - 20% energy savings of 236 trillion Btu by 2020 in pump applications primarily due to reduced friction losses • FY05 Activities: - Commission and optimize 11-inch IPLAS system (up from 6-inch system) - Demonstrate UNCD coating of multiple seals simultaneously - Demonstrate benefits of UNCD coatings on gas seals - Verify tribological benefits of UNCD coated seals - Perform long-term pump tests 2 Pioneering Science and Technology Project Participants – Laboratory-led project • Argonne National Laboratory - Energy Systems: - Jeff Elam, John Hryn (Project POC), Joe Libera - Energy Technology: - Ali Erdemir, Andriy Kovalchenko - Materials Science: - Orlando Auciello, John Carlisle, Dieter Gruen, Mike Pellin, Alex Zinovev • Industry Partners: - Advanced Diamond Technologies, Inc. (ADT) - Neil Kane (Industry POC) - John Crane, Inc. - IPLAS Innovative -
Office of Basic Energy Sciences
DRAFT Office of Basic Energy Sciences Accomplishments FY 1994 DRAFT Major Facilities Construction Highlights Advanced Photon Source Semiannual Review of Advanced Photon Source Proiect (APS) A Construction Project Management Review of the APS Project was conducted at Argonne National Laboratory on November 15-17, 1994 by the Office of Basic Energy Sciences and the Office of Management. The Review Committee consisted of Mr. James Carney, Construction Management Support Division, Chairman; Robert A. Zich, Acquisition and Assistance Management Division; Office of Basic Energy Sciences' Drs. Albert E. Evans, Frederick A. Koomanoff, William T. Oosterhuis, and Walter M. Polansky, together with eleven peer reviewers from DOE Laboratories. Also present were Mr. Matthew Cole from the Office of Environment, Safety, and Health Technical Support, Dr. Bal Mahajan of the Office of Performance Assessment, and Edward F. Koch from the Office of Field Management. The Committee is pleased to report that the APS Project is meeting budget ($811.9 Million Total Project Cost) and time schedules. Construction of the accelerator should be complete by January 1995. All construction, now mostly office and laboratory space, should be completed by February 1996. Commissioning, now underway, should-be complete well in advance of the December 1996 date scheduled for the start of routine operation. Development of Non-Polluting Process for Cleaning Metal Receives Award by the State of Illinois The Advanced Photon Source (APS) scientists, engineers, and technicians have combined their efforts and ideas to develop an alternate process for chemically cleaning aluminum-alloy vacuum chamber sections prior to their installation into the APS. The result of their efforts was-the elimination of 3,000 gallons of hazardous chemical waste per month and an estimated cost savings for waste removal of $300,000 in the first year. -
History of the Seaborg Institute
HISTORY OF THE SEABORG INSTITUTE ARQ.2_09.cover.indd 1 6/22/09 9:24 AM ContentsContents History of the Seaborg Institute The Seaborg Institute for Transactinium Science Established to educate the next generation of nuclear scientists 1 ITS Advisory Council 5 Seaborg the scientist 7 Naming seaborgium 11 Branching out 13 IGCAR honors Seaborg’s contributions to actinide science 16 Seaborg Institute for Transactinium Science/Los Alamos National Laboratory Actinide Research Quarterly The Seaborg Institute for Transactinium Science Established to educate the next generation of nuclear scientists In the late 1970s and early 1980s, research opportunities in heavy element This article was contributed by science and engineering were seldom found in university settings, and the supply Darleane C. Hoffman, professor emerita, of professionals in those fields was diminishing to the detriment of national Graduate School, Department of goals. In response to these concerns, national studies were conducted and panels Chemistry, UC Berkeley, faculty senior and committees were formed to assess the status of training and education in the scientist, Lawrence Berkeley National nuclear sciences. The studies in particular addressed the future need for scientists Laboratory, and charter director, Seaborg trained in the areas of nuclear waste management and disposal, environmental Institute, Lawrence Livermore National remediation, nuclear fuel processing, and nuclear safety analysis. Laboratory; and Christopher Gatrousis, Unfortunately, with the exception of the American Chemical Society’s former associate director of Chemistry Division of Nuclear Chemistry and Technology summer schools for undergradu- and Materials Science, Lawrence ates in nuclear and radiochemistry established in 1984, the studies did not lead Livermore National Laboratory. -
Nanostructures: Physics and Technology
NANOSTRUCTURES: PHYSICS AND TECHNOLOGY 20th International Symposium Nizhny Novgorod, Russia, June 24–30, 2012 Academic University Publishing St Petersburg, 2012 Copyright © 2012 by St Petersburg Academic University and individual contributors. All rights reserved. No part of this publication may be multiple copied, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the written permission of the publisher. Single photocopies of single articles may be made for private study or research. ISBN 978-5-91326-179-3 The International Symposium ”Nanostructures: Physics and Technology” is held annually since 1993. The first Symposium was initiated by Prof. Zh. Alferov and Prof. L. Esaki who are its permanent co-chairs. More detailed information on the Symposium is presented on the World Wide Web http://www.ioffe.ru/NANO2012/ The Proceedings include extended abstracts of invited talks and contributed papers to be presented at the Symposium. By tradition this book is published before the beginning of the meeting. The volume was composed at the St Petersburg Academic University from electronic files submitted by the authors. When necessary these files were converted into the Symposium style. Only minor technical corrections were made by the composers. Design and layout: N. Vsesvetskii Desk editor: E. Savostyanova Published by St Petersburg Academic University Khlopin str. 8/3, 194021, St Petersburg, Russia http://www.spbau.ru/ Printed in Russian Federation The Symposium -
The 40Th AAAS Gordon Conference on Nuclear Chemistry, New London, NH, June 27,1991, and to Be Published in the Proceedings
do/OF-WotJ®--) LBL-31134 Lawrence Berkeley Laborater UNIVERSITY OF CALIFORNIA rw— Mi OCf 1 Presented at the 40th AAAS Gordon Conference on Nuclear Chemistry, New London, NH, June 27,1991, and to be published in the Proceedings The 40th AAAS Gordon Conference on Nuclear Chemistry G.T. Seaborg June 1991 \$Vis\c£/ DOCUMENT IS UNLIMITED [ DISTRIBUTION OF THIS I Prepared for the U.S. Department of Energy under Contract Number DE-AC03-76SF00098 DISCLAIMER This document was prepared as an account of work sponsored by the United States Government. Neither the United States Government nor any agency thereof, nor The Regents of the University of Califor nia, nor any of their employees, makes any warranty, express or Im plied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe pri vately owned rights. Reference herein to any specific commercial product, process, or service by its trade name, trademark, manufac turer, or otherwise, does not necessarily constitute or imply its en dorsement, recommendation, or favoring by the United States Gov ernment or any agency thereof, or The Regents of the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof or The Regents of the University of California and shall not be used for advertising or product endorsement pur poses. Lawrence Berkeley Laboratory is an equal opportunity employer. LBL—31134 DE92 000844 The 40th AAAS Gordon Conference on Nuclear Chemistry Glenn T. -
Los Alamos Announces Progress on Acoustic Heat Engines Discovery Astronauts Manufacture Metal Alloys in Experiments Funded by Gr
RESEARCH/RESEARCHERS Los Alamos Announces ing of Aligned Magnetic Composites;' was surveyed have their initial training in phys Progress on Acoustic sponsored by Grumman Corporation in ics. Another third began their careers in a Heat Engines an ongoing effort to reduce the expense of different field, but have taught physics reg producing high quality electronic materials ularly throughout their teaching career. The simplicity and reliability of a series of on earth. The remaining third can be classified as experimental acoustic heat engines have Small ingots of a MnBi compound were "draftees;' with training in other fields and led researchers at Los Alamos National melted. Each ingot was 80 mm long and 5 little previous experience in the teaching of Laboratory to begin seeking practical appli mm in diameter and weighed less than 20 physics. cations. g. The furnace they were melted in had The report concludes that three sets of Like their precursors, the Los Alamos heating elements programmed to move factors appear to have the greatest impact engines rely on two simple principles un along the length of the ingot at certain on the presence and robustness of physics derstood for centuries: the nature of how speeds. As the ingot was heated and programs in high school. They are: sound vibrates and the fact that changing cooled, tiny MnBi rods were formed as 1. school size, geographic location, and temperatures make materials expand and magnetic particles embedded within the urban or rural setting; contract. They convert heat to work or use composite material. The magnet's strength 2. the demographic character of the stu work to pump heat in a way similar to con is determined by the pattern, size, and dent body, especially its socioeconomic ventional refrigerators and steam turbines. -
Computational Quantum Chemistry Page 1 of 1 COMPUTATIONAL QUANTUM CHEMISTRY
computational quantum chemistry Page 1 of 1 COMPUTATIONAL QUANTUM CHEMISTRY This web page includes information on research carried out in the Basic Energy Sciences section of the Chemical Technology Divsion on the development of quantum chemical methods for computational thermochemistry and the application of quantum chemical methods to problems in material chemistry and chemical sciences. Computational thermochemisty (Gaussian-2 theory, density functional theory) Molecular sieve materials Diamond thin-film growth Lithium polymer electrolytes QCf^PIX/POl Long-range electron transfer *"» "^ NOx reactions QQJ 2 k J997 For more information contact Larry Curtiss f\ e-mail: [email protected] tmwm t TER http://www.cmt.anl.gov/mcp/qc.htm 8/22/97 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or use- fulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any spe- cific commercial product, process, or service by trade name, trademark, manufac- turer, or otherwise does not necessarily constitute or imply its endorsement, recom- mendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. DISCLAIMER Portions of this document may be illegible electronic image products. -
Anl Argonnenow 2012Summer.Pdf
ARGONNE VOLUME 06 / ISSUE 01 / SUMMER 2012 Inside the Advanced Photon Source Meet Our New Supercomputer Preparing for Pandemic Flu The Physicist and the Lost da Vinci Higgs Higgs Hooray Dear Reader, ARGONNE Here at Argonne, our scientists and engineers are tightly focused on our mission of discovery and innovation in the national interest. We work each editor day to find new sources of clean energy, stretch Louise Lerner the boundaries of scientific discovery, and create editorial board Ed Daniels new technologies that can recharge our economy. Rick Fenner Our research is important, compelling, and Robin Graham Matt Howard potentially game-changing, and we welcome Denny Mills finding new ways to share the work we do here with the larger community. Michael Papka Mark Peters Cosmas Zachos So as Director of Argonne, I am very excited to present this relaunch of photography Argonne Now, our semi-annual laboratory magazine. As you will see, we are Wes Agresta adding more pages of science and engineering news. We also are offering a George Joch number of special features, including this issue’s review of educational art and design Sana Sandler opportunities at Argonne and our look at the real science (or lack of it) that production underlies contemporary movies and television shows. Gary Weidner send correspondence and questions to: I recommend our cover story, “The Search for a Superbattery,” which Argonne Now follows Argonne’s quest to develop a lithium-ion battery with the muscle to Communications & Public Affairs power a car for 300 miles or more on a single charge. The story begins in Building 201 Argonne National Laboratory Argonne’s materials science division and takes you all the way to the new 9700 S. -
Kinetic Energy Distributions of the Desorbed N E U Tr a Ls
INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely afreet reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book. Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6" x 9" black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. University Microfilms International A Bell & Howell Information Company 300 North Zeeb Road. Ann Arbor. Ml 48106-1346 USA 313/761-4700 800/521-0600 Order Number 9130584 Electron-stimulated desorption from aluminum surfaces Whitten, James Edwaxd, Ph.D. The Ohio State University, 1991 UMI 300 N. Zeeb Rd.