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224 results on '"Panitz, J. A."'

5. Isothermal ramped field-desorption of water from metal surfaces.

Author

Stintz, A. and Panitz, J. A.

Subjects
*VAPOR-plating, *ELECTRIC fields, *ADSORPTION (Chemistry), *TUNGSTEN
Abstract

Presents information on a study which analyzed water vapor deposition onto metal surfaces using a ramped electric field. Experimental details; Investigation of the influence of the amount of water coverage on tungsten; Utilization of a commercial quartz crystal deposition monitor to measure the layer thickness; Discussion of the adsorption of water as a function of the temperature of the tungsten substrate.

Published
1992
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6. The behavior of LiF-coated metal anodes in pulsed electric fields.

Author

Schwoebel, P. R. and Panitz, J. A.

Subjects
*LITHIUM compounds, *FLUORIDES, *ANODES, *ELECTRIC circuits
Abstract

Deals with a study which investigated the behavior of lithium fluoride-coated metal anodes in pulsed electric fields. Experimental details; Characterization of film morphology; Interpretation of results.

Published
1992
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7. Ion production from LiF-coated field emitter tips.

Author

Pregenzer, A. L., Bieg, K. W., Olson, R. E., and Panitz, J. A.

Subjects
LITHIUM compounds, IONS
Abstract

Studies the ion production from lithium fluoride-coated field emitter tips. Mechanism of the ion production; Overview of the experiment; Theory of the mechanism for ion production.

Published
1990
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14. Field adsorption and desorption of helium and neon

Author

Mclane, S. B, Mueller, E. W, and Panitz, J. A

Subjects
Physics, Solid-State
Abstract

He and Ne adsorption and desorption on field ion microscope tip, determining minimum required field strengths of gas films at different temperatures

Published
1969

15. The atom-probe field ion microscope.

Author

Mclane, S. B, Mueller, E. W, and Panitz, J. A

Subjects
Instrumentation And Photography
Abstract

Atom probe field ion microscope combining probe hole FIM and mass spectrometer with single particle sensitivity

Published
1968

48. LiF ion source performance on PBFA II.

Author

Stinnett, R. W., Green, T. A., Johnson, D. J., Lockner, T. R., Mehlhorn, T. A., Bailey, J. E., Filuk, A., Mix, L. P., Panitz, J., and Schwoebel, P.

Abstract

Recent LiF ion source experiments have been conducted on Sandia National Laboratories' Particle Beam Fusion Accelerator (PBFA) II [1]. This facility is designed to provide a 30 MV, 100 TW power pulse to an applied B ion diode to investigate the suitability of light ions for inertial confinement fusion (ICF). Singly-ionized lithium is the desired ion species for these experiments because it has the proper range in target materials at 30 MV. LiF-coated anodes have been shown in experiments on other accelerators [2,3] to produce relatively pure (>70%) Li+ beams. Earlier PBFA II experiments using porous anodes coated with LiF confirmed Li+ production from LiF films [4]. The present PBFA II experiments use 0.6 μm films of LiF evaporated onto a stainless steel anode surface to provide a 1 MA, 25 ns FWHM pulse of Li+ ions at energies of 6–9 MeV. The physical mechanism for production of ions from thin films of LiF has not previously been identified. One of us, T. Green, has developed a model which is consistent with LiF data from PBFA II and laboratory experiments and may provide a framework for understanding Li+ ion production from thin LiF films in an applied B diode. [ABSTRACT FROM PUBLISHER]

Published
1992

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