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AN ANGLE-RESOLVED TRANSLATIONAL ENERGY SPECTROMETER FOR INVESTIGATING LOW-ENERGY, HIGHLY-CHARGED ION-ATOM (MOLECULE) COLLISIONS

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REVIEW OF SCIENTIFIC INSTRUMENTS 1993年第11期64卷 3139-3146页

作者： VANCURA, J PEROTTI, JJ FLIDR, J KOSTROUN, VO Nuclear Science and Engineering Program Ward Laboratory Cornell University Ithaca New York 14853

An experimental apparatus for investigating low-collision energy gas-phase reactions of highly charged ions with atoms and molecules by angle-resolved translational energy spectroscopy is described. The basic function of the apparatus is to slow down highly charged ions extracted at 2-3 kV from the Cornell superconducting solenoid, cryogenic electron beam ion source (CEBIS) to energies below 100 qeV. The slowing down and monochromatization of the beam is done by an ion optical system that consists of two 180-degrees hemispherical electrostatic analyzers with a tuneable deceleration lens located between them. The low-energy beam available for experiments has an angular spread of 0.5-degrees and an energy spread of 0.4 qeV. The ion optical system is mounted on a 508 mm by 576 mm electrically isolated platform inside a large vacuum chamber, and the modular nature of the apparatus allows for quick and easy rearrangement of the ion optical elements for different experiments. A brief overview of in-plane scattering kinematics is given.

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Absolute total and one- and two-electron transfer cross sections for Arq+ (8≤q≤16) on He and H2 at 2.3q keV

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Physical Review A 1993年第5期47卷 3758-3758页

作者： J. Vancura V. J. Marchetti J. J. Perotti V. O. Kostroun Nuclear Science and Engineering Program Ward Laboratory Cornell University Ithaca New York 14853

Absolute values for the total and one- and two-electron transfer cross sections for Arq+ ions (8≤q≤16) colliding with helium and molecular hydrogen at 2.3q keV laboratory energy were measured by the growth-rate method. The He and H2 total cross sections as a function of Ar-projectile L-shell occupation number increase monotonically from Ar8+, 2p shell full, to Ar16+, 2s shell empty. The H2 one-electron capture cross section scales approximately as [EIP (He)/EIP(H2)]2 times the corresponding He cross section, but the shapes of the two cross sections differ in detail. The Arq+ ions were produced by the Cornell superconducting-solenoid, cryogenic electron-beam ion source (CEBIS) and extracted at 2.3 kV. Selected charge states traversed a gas cell, after which they were detected and charge-state analyzed by the energy-retardation method and by a π/ √2 cylindrical electrostatic analyzer. The target-gas pressure in the cell was measured directly by the orifice-flow method used for absolute-pressure gauge calibration. The overall error in the Arq+ on H2 cross-section measurements is ±10%, and ±15% in the He measurements.

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Recoil ion charge state distributions in low energy Arq+‐Ar collisions

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AIP Conference Proceedings 1993年第1期274卷 113-116页

作者： J. Vancura V. Marchetti V. O. Kostroun Nuclear Science and Engineering Program Ward Laboratory Cornell University Ithaca New York

We have measured the recoil ion charge state distributions in Arq+‐Ar (8≤q≤16) collisions at 2.3 qkeV and 0.18 qkeV by time of flight (TOF) spectroscopy. For Ar8–16+, recoil ion charge states up to 6+ are clearly present, indicating that the 3p subshell in the target atom is being depleted, while for Ar10–16+, there is evidence that target 3s electrons are also being removed. Comparison of the recoil ion charge state spectra at 2.3 and 0.18 qkeV shows that for a given projectile charge, there is very little dependence of the observed recoil target state distribution on projectile energy.

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Absolute total and one and two electron transfer cross sections for Ar8+ on Ar as a function of energy

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AIP Conference Proceedings 1993年第1期274卷 109-112页

作者： J. Vancura V. O. Kostroun Nuclear Science and Engineering Program Ward Laboratory Cornell University Ithaca New York

The absolute total and one and two electron transfer cross sections for Ar8+ on Ar were measured as a function of projectile laboratory energy from 0.090 to 0.550 keV/amu. The effective one electron transfer cross section dominates above 0.32 kev/amu, while below this energy, the effective two electron transfer starts to become appreciable. The total cross section varies by a factor over the energy range explored. The overall error in the cross section measurement is estimated to be ±15%.

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Energy gain spectroscopic study of Arq+‐Ar collisions at 40 qeV

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AIP Conference Proceedings 1993年第1期274卷 117-119页

作者： J. Vancura V. O. Kostroun Nuclear Science and Engineering Program Ward Laboratory Cornell University Ithaca New York

Energy gain spectra of Arq+ (8≤q≤16) on Ar at 40 qeV collision energy and 0.4 qeV energy resolution are presented. Capture into definite states of the projectile is observed which seems to exhibit a definite even‐o...

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Electron emissions in low energy Arq+‐Ar collisions

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AIP Conference Proceedings 1993年第1期274卷 120-123页

作者： J. Vancura V. O. Kostroun Nuclear Science and Engineering Program Ward Laboratory Cornell University Ithaca New York 14853

The spectra of electrons emitted in Arq+ on Ar (8≤q≤16) collisions at 2.3 qkeV were measured in the 30 to 400 eV energy range. With the exception of Ar8+ on Ar, the overall appearance of the electron spectra is quite similar, suggesting that the same mechanism is responsible for the observed features. One possible mechanism is the delocalization of the 3p and 3s target electrons during the collision. The resulting molecular state either deexcited by Auger transitions during the collision, or strands two or more electrons on the projectile in an excited state. This state in turn deexcites by Auger transitions.

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Erratum

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Canadian Journal of Anaesthesia 1992年第7期39卷 749-749页

作者： Michèle, Saiah Alain, Borgeat Oliver, Wilder-Smith Hung, Orlando R. Hope, Charles E. Laney, Geoffrey Whynot, Sara C. Coonan, Thomas J. Malloy, David S. Patterson, S. Gelb, A. Manninen, P. Strum, D. Glosten, B. Spellman, M. J. Eger, E. I. Craen, R. A. Gelb, A. W. Murkin, J. M. Chong, K. Y. Penning, D. H. El-Behairy, H. Brien, J. F. Coh, J. W. Arellano, R. Correa, J. Fedorko, L. Liu, Z. Boylan, J. F. Sandler, A. N. Nierenberg, H. Sheiner, P. A. Greig, P. D. O’Leary, G. M. Teasdale, S. J. Glynn, M. F. X. Orser, B. A. Wang, L. -Y. MacDonald, J. F. Loomis, C. W. Arunachalam, K. D. Vyas, D. Milne, B. Gagnon, Daniel Lavoie, Josée Dupuis, Jean-Yves Miller, D. R. Martineau, R. J. Greenway, D. Olivaris, L. Hull, K. Tierney, R. N. M. Wynands, J. E. Martineau, R. St-Jean, B. Kitts, J. Miller, D. Lindsay, P. Curran, M. Allen, G. C. Crossan, M. L. Wise, Richard Donati, François Bevan, David R. Hardy, J. F. Desroches, J. Perrault, J. Carrier, M. Robitaille, D. Ansley, D. M. O’Connor, J. P. Dolman, J. Townsend, G. E. Ricci, D. Liepert, D. J. Browne, P. M. Hertz, T. Rooney, M. Yip, R. W. Code, W. Phillips, A. A. McLean, R. F. Devitt, J. H. Harrington, E. M. Byrick, R. J. Wong, P. Y. Wigglesworth, D. Kay, J. C. Sinclair, L. A. Koch, J. P. Deemar, K. A. Christakis, G. K. Belo, S. Angle, P. Cheng, D. Boylan, J. Sandler, A. Feindel, C. Carmichael, F. Boylen, P. DeLima, L. G. R. Nathan, H. J. Hynes, M. S. Bourke, M. E. Russell, G. N. Seyone, C. Chung, F. Chartrand, Daniel Roux, Lucie Dain, S. L. Smith, B. D. Webster, A. C. Wigglesworth, D. F. Rose, D. K. Caskennette, G. Mechetuk, C. Doyle, D. John DeMajo, Wilfred van den Bosch, Frank Lee, Mark McClenaghan, K. M. Mazer, C. D. Preston, R. Crosby, E. T. Kotarba, D. Dudas, H. Elliott, R. D. Enns, J. Manninen, P. H. Farrar, J. K. Huzyka, David L. Lin, L. Philip Fossey, Susan Finucane, Brendan T. Stockwell, M. Lozanoff, S. Lang, S. Hyssen, J. Campbell, D. C. Douglas, M. J. Pavy, T. J. G. Flanagan, M. L. McMorland, G. H. Bands, Colin Ffaracs, Ch. B. Lipsett, Catherine Drover, David Stafford- Department of Anesthesiology University Hospital of Geneva Genève 4 Switzerland Departments of Anaesthesia and Neurosurgery Dalhousie University and Victoria General Hospital Halifax Departments of Anaesthesia and Medicine Dalhousie University Halifax Department of Anaesthesia Victoria General Hospital Dalhousie University Halifax Department of Anaesthesia Dalhousie University and Victoria General Hospital Halifax Department of Anaesthesia University Hospital London Departments of Anesthesia at U of Pittsburgh UC San Francisco U of Chicago USA Departments of Physiology and Anaesthesia The University of Western Ontario and The John. P. Roberts Research Institute London Department of Anaesthesia and Program in Critical Care University Hospital London Department of Anaesthesia/Critical Care University Hospital University of Western Ontario London Department of Anaesthesia Queen’s University Kingston Canada Department of Pharmacology & Toxicology Queen’s University Kingston Canada Department of Anaesthesia University of Toronto Toronto Departments of Anaesthesia Surgery and Haematology The Toronto Hospital Toronto The Acute Pain Research Unit Department of Anaesthesia and The Department of Psychology The Toronto Hospital (General Division) Toronto Departments of Anaesthesia and Psychology Toronto General Division The Toronto Hospital University of Toronto Toronto Departments of Anaesthesia and Behavioral Science University of Toronto Toronto The Toronto Hospital General Division University of Toronto Toronto Dept. Anaesthesia Sunnybrook Health Science Center Canada Dept. Physiology University of Toronto Toronto School of Pharmacy Memorial University of Newfoundland St. John’s Department of Anaesthesia Faculty of Medicine The University of British Columbia & Grace Hospital Vancouver Centre Hospitalier Universitaire de Sherbrooke N. Fleurimont Department of Anesthesia University of Ottawa Heart Institute Ottawa Civic Hospital Ottawa Department of Anaesthesia

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Abstracts

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Canadian Journal of Anaesthesia 1992年第1期39卷 A3-A151页

作者： Saiah Michèle Borgeat Alain Wilder-Smith Oliver Orlando R. Hung Charles E. Hope Geoffrey Laney Sara C. Whynot Thomas J. Coonan David S. Malloy S. Patterson A. Gelb P. Manninen D. Strum B. Glosten M. J. Spellman E. I. Eger R. A. Craen A. W. Gelb J. M. Murkin K. Y. Chong D. H. Penning H. El-Behairy J. F. Brien J. W. Coh R. Arellano J. Correa L. Fedorko Z. Liu J. F. Boylan A. N. Sandler H. Nierenberg P. A. Sheiner P. D. Greig G. M. O’Leary S. J. Teasdale M. F. X. Glynn B. A. Orser L. -Y. Wang J. F. MacDonald C. W. Loomis K. D. Arunachalam D. Vyas B. Milne Daniel Gagnon Josée Lavoie Jean-Yves Dupuis D. R. Miller R. J. Martineau D. Greenway L. Olivaris K. Hull R. N. M. Tierney J. E. Wynands R. Martineau B. St-Jean J. Kitts D. Miller P. Lindsay M. Curran G. C. Allen M. L. Crossan Richard Wise François Donati David R. Bevan J. F. Hardy J. Desroches J. Perrault M. Carrier D. Robitaille D. M. Ansley J. P. O’Connor J. Dolman G. E. Townsend D. Ricci D. J. Liepert P. M. Browne T. Hertz M. Rooney R. W. Yip W. Code A. A. Phillips R. F. McLean J. H. Devitt E. M. Harrington R. J. Byrick P. Y. Wong D. Wigglesworth J. C. Kay L. A. Sinclair J. P. Koch K. A. Deemar G. K. Christakis S. Belo P. Angle D. Cheng J. Boylan A. Sandler C. Feindel F. Carmichael P. Boylen L. G. R. DeLima H. J. Nathan M. S. Hynes M. E. Bourke G. N. Russell C. Seyone F. Chung Daniel Chartrand Lucie Roux S. L. Dain B. D. Smith A. C. Webster D. F. Wigglesworth D. K. Rose G. Caskennette C. Mechetuk D. John Doyle Wilfred DeMajo Frank van den Bosch Mark Lee K. M. McClenaghan C. D. Mazer R. Preston E. T. Crosby D. Kotarba H. Dudas R. D. Elliott J. Enns P. H. Manninen J. K. Farrar David L. Huzyka L. Philip Lin Susan Fossey Brendan T. Finucane M. Stockwell S. Lozanoff S. Lang J. Hyssen D. C. Campbell M. J. Douglas T. J. G. Pavy M. L. Flanagan G. H. McMorland Colin Bands Ch. B. Ffaracs Catherine Lipsett David Drover Mark Stafford-Smith Sarah Stevens Kate Shields Michael J. MacSween J. D. McAllister P. K. Morley-Forster A. K. White M. D. Taylor H. M. Vandenberghe D. Knop Department of Anesthesiology University Hospital of Geneva Genève 4 Switzerland Departments of Anaesthesia and Neurosurgery Dalhousie University and Victoria General Hospital Halifax Departments of Anaesthesia and Medicine Dalhousie University Halifax Department of Anaesthesia Victoria General Hospital Dalhousie University Halifax Department of Anaesthesia Dalhousie University and Victoria General Hospital Halifax Department of Anaesthesia University Hospital London Departments of Anesthesia at U of Pittsburgh UC San Francisco U of Chicago USA Departments of Physiology and Anaesthesia The University of Western Ontario and The John. P. Roberts Research Institute London Department of Anaesthesia and Program in Critical Care University Hospital London Department of Anaesthesia/Critical Care University Hospital University of Western Ontario London Department of Anaesthesia Queen’s University Kingston Canada Department of Pharmacology & Toxicology Queen’s University Kingston Canada Department of Anaesthesia University of Toronto Toronto Departments of Anaesthesia Surgery and Haematology The Toronto Hospital Toronto The Acute Pain Research Unit Department of Anaesthesia and The Department of Psychology The Toronto Hospital (General Division) Toronto Departments of Anaesthesia and Psychology Toronto General Division The Toronto Hospital University of Toronto Toronto Departments of Anaesthesia and Behavioral Science University of Toronto Toronto The Toronto Hospital General Division University of Toronto Toronto Dept. Anaesthesia Sunnybrook Health Science Center Canada Dept. Physiology University of Toronto Toronto School of Pharmacy Memorial University of Newfoundland St. John’s Department of Anaesthesia Faculty of Medicine The University of British Columbia & Grace Hospital Vancouver Centre Hospitalier Universitaire de Sherbrooke N. Fleurimont Department of Anesthesia University of Ottawa Heart Institute Ottawa Civic Hospital Ottawa Department of Anaesthesia

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The Cornell superconducting solenoid cryogenic EBIS

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AIP Conference Proceedings 1989年第1期188卷 65-81页

作者： V. O. Kostroun Nuclear Science and Engineering Program Ward Laboratory Cornell University Ithaca NY 14853

Over the past four years, a superconducting solenoid, cryogenic electron beam ion source, EBIS, has been designed, constructed and tested at Cornell University. The source is specifically intended for atomic physics experiments requiring low energy, very highly charged ion beams. The source and its operating characteristics are described.

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FUTURE PROPULSION MACHINERY TECHNOLOGY FOR GAS-TURBINE POWERED FRIGATES, DESTROYERS, AND CRUISERS

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NAVAL ENGINEERS JOURNAL 1984年第2期96卷 34-46页

作者： BASKERVILLE, JE QUANDT, ER DONOVAN, MR USN The Authors Commander James E. Baskerville USNis presently assigned to Naval Sea Systems Command (NA VSEA) as the Ship Design Manager for the DDG 51 the Navy's next generation surface combatant. A graduate of the U.S. Naval Academy Class of 1969 he is a qualified Surface Warfare Officer and designated Engineering Duty Officer (ED). He received his M.S. degree in Mechanical Engineering and his professional degree of Ocean Engineer from the Massachusetts Institute of Technology (MIT) and holds a patent right on an Electronic Control and Response System. His naval assignments include tours in USSRamsey (FFG-2) Aide and Flag Lieutenant to the Commander Naval Electronic Systems Command and Ship Superintendent Surface Type Desk Officer and Assistant Design Superintendent at NA VSHIPYD Pearl Harbor. He was awarded the Meritorious Service Medal for distinguished performance at Pearl Harbor Naval Shipyard. As an author he has contributed articles to the ASNEJournaland given presentations at local sections on ship design the use of innovative technology in ship repair and maintenance and the costs and risks associated with engineering progress. Commander Baskerville is a registered Professional Engineer in the State of Virginia an adjunct professor teaching marine engineering at Virginia Tech. and in addition to ASNE which he joined in 1975 is a member of SNAME Tau Beta Pi Sigma Xi ASME and the American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE). Dr. Earl R. Quandt:received his degree of Chemical Engineer from the University of Cincinnati in 1956 and his Ph.D. degree in Chemical Engineering from the University of Pittsburgh in 1961. He worked in the naval reactors program at the Bettis Atomic Power Laboratory from 1956 to 1963. Since that time he has been with David Taylor Naval Ship Research and Development Center Annapolis Maryland where he is Head of the Power Systems Division. He contributed to this paper while on a one year assignment to the U.S. Naval Academy as V

A turning point occurred in naval engineering in 1972 when the U.S. N avy chose to use marine gas turbines for the propulsion of its new SPRUANCE and PERRY Class ships. This paper reviews the more than twenty years of experience with turbine technology and its design integration into combat ships needed to make that decision. It is concluded that the availability of a good second generation aircraft derivative engine with proven reliability and a strong commercial base, i.e., the LM-2500, was as important to the decision as was the predicted improved ship effectiveness and cost benefits. This paper discusses improvements that can be made to the twin engine, single gear, single propeller shaft system. Focusing only on this mechanical transmission concept, it addresses the impact of possible improvements to the engine, gear, and shafting. In particular, the paper discusses current LM-2500 related R&D efforts to: (a) obtain improved part-power fuel rates, (b) integrate with a reversing reduction gear, and (c) add on a waste heat recovery steam cycle. Looking ahead to the year 2000, this paper suggests that a successor to the ubiquitous LM-2500 will appear in the 15 MW power range to provide the next step in the evolution of the twin engine package. This new naval engine will most likely be based on an aircraft core that exists at present, such that it will have demonstrated its reliability and commercial potential through many hours of testing prior to its mid-1990 marine conversion. This new engine is expected to offer improved air flow, an excellent fuel rate (approaching a flat 0.30 LB/HP-HR), and effective maintenance monitoring, all at some expense in size, weight, and cost. The year 2000 engine will burn a liquid hydrocarbon fuel similar to JP-5 because of its aircraft origins. Combined with advances in gear and shafting technology, the full twin engine propulsion system of the year 2000 should be markedly lighter, smaller, and more efficient than today's units.

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