Výsledky vyhledávání

Simultaneous energy distribution and ion fraction measurements using a linear time-of-flight analyzer with a floatable drift tube

Autor: V. A. Morozov, F. W. Meyer

Publikováno v: Review of Scientific Instruments. 70:4515-4522

A technique for simultaneous energy distribution and ion fraction measurements using a linear time-of-flight analyzer with a floatable drift tube is described. Analytical expressions for the relative collection efficiency and viewing region of the ap

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::378f8bef99219f4d775ea835290b8b38
https://doi.org/10.1063/1.1150104

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Enhancing the performances of traditional electron cyclotron resonance ion sources with multiple-discrete-frequency microwave radiation

Autor: J. R. Beene, G.D. Alton, Yuan Liu, D. Tucker, F. W. Meyer

Publikováno v: Review of Scientific Instruments. 69:2305-2312

The performances of electron cyclotron resonance (ECR) ion sources, in terms of high-charge-state yields and intensities within a particular charge state, can be enhanced by increasing the physical sizes of the ECR zones in relation to the sizes of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2dc2832c939c87668a8aac1ff231c082
https://doi.org/10.1063/1.1148936

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Grazing-ion-surface interaction as a probe of surface states

Autor: Joachim Burgdörfer, Q. Yan, F. W. Meyer

Publikováno v: Physical Review B. 56:1589-1592

We propose a simple theoretical model for the study of the electronic structure of surface bands by the measurement of resonant charge transfer between localized surface electrons and grazingly incident projectiles. We present an analytic expression

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f1e262d601315380323323368d10150
https://doi.org/10.1103/physrevb.56.1589

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Low-Energy Grazing Ion-Scattering From Alkali-Halide Surfaces: A Novel Approach To C-14 Detection

Autor: F. W. Meyer, E. Galutschek, M. Hotchkis, Floyd D. McDaniel, Barney L. Doyle

Publikováno v: AIP Conference Proceedings.

Carbon‐14 labeled compounds are widely used in the pharmaceutical industry, e.g., as tracers to determine the fate of these compounds in vivo. Conventional accelerator mass spectrometry (AMS) is one approach that offers sufficiently high sensitivit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fe8792bde1db5c9e04e9d2c88f389258
https://doi.org/10.1063/1.3120038

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Production of Long-Lived H[sub 2][sup −], HD[sup −], and D[sub 2][sup −] during Grazing Scattering Collisions of H[sub 2][sup +], H[sub 3][sup +], D[sub 2][sup +], D[sub 3][sup +] and D[sub 2]H[sup +] Ions with KBr, KCl, and LiF Surfaces

Autor: D. G. Seely, F. W. Meyer, H. Zhang, C. C. Havener, Floyd D. McDaniel, Barney L. Doyle

Publikováno v: AIP Conference Proceedings.

We have investigated atomic and molecular anion production from singly charged atomic and molecular hydrogen, deuterium, and mixed isotope beams during grazing interactions with large area KBr, KCl, and LiF single crystal targets in the incident ener

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e7ce05c6591b6484fafefe0ffd50629
https://doi.org/10.1063/1.3120003

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Bi-Maxwellian electron energy distributions in the edge of the CAPRICE ECR ion sources

Autor: F. W. Meyer, Y. H. You, K. S. Chung

Publikováno v: 2006 International Symposium on Discharges and Electrical Insulation in Vacuum.

Edge plasma of the ORNL CAPRICE ECR ion source is studied by directly measuring, with electrical probes, its local plasma parameters such as plasma density, temperature and electron energy distributions at different rf power levels and different loca

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ebc3c31d9bbfc2ac917272ec9a37330
https://doi.org/10.1109/deiv.2006.357385

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