Zobrazeno 1 - 10
of 25
pro vyhledávání: '"R. K. Feeney"'
Publikováno v:
Review of Scientific Instruments. 67:1634-1637
A simple, all permanent magnet, 2.45 GHz electron cyclotron resonance ion source has been developed for the production of stable beams of low charge state ions from gaseous feed materials. The source can produce ∼1 mA of low energy (3 kV) singly ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95fedb20b852737731fc0fd232f2a80d
https://doi.org/10.1063/1.1146906
https://doi.org/10.1063/1.1146906
Publikováno v:
Measurement Science and Technology. 2:242-246
A practical technique is described to estimate the resonant frequency of a helical resonator surrounding a coaxially mounted discharge tube. A simple formula is derived that relates the resonant frequency of the cavity to dimensions and dielectric pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0381a0443716482051dd535f83e7ada
https://doi.org/10.1088/0957-0233/2/3/009
https://doi.org/10.1088/0957-0233/2/3/009
Publikováno v:
[Proceedings] IVMC '93 Sixth International Vacuum Microelectronics Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb3c034ddc1da6c6eab24878d7890f04
https://doi.org/10.1109/ivmc.1993.700310
https://doi.org/10.1109/ivmc.1993.700310
Publikováno v:
IVMC '95. Eighth International Vacuum Microelectronics Conference. Technical Digest (Cat. No.TH8012).
A circuit model has been developed for a family of composite-based, low-voltage field-emitter-array cathodes. The arrays were fabricated by thin-film technology from directionally solidified oxide-metal composite materials. The typical field-emission
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d09d1b84c9a332d786d8aabcf0c51cfc
https://doi.org/10.1109/ivmc.1995.486993
https://doi.org/10.1109/ivmc.1995.486993
Publikováno v:
Review of Scientific Instruments. 67:1216-1216
A simple, all permanent magnet, 2.45 GHz electron cyclotron resonance ion source has been developed for the production of stable beams of low charge state ions from gaseous feed materials. The source can produce ∼1 mA of low energy (3 kV) singly ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07bf76e73a62ca278a9b8b1ca0d06de6
https://doi.org/10.1063/1.1147237
https://doi.org/10.1063/1.1147237
Publikováno v:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 11:1297
The composite‐based low voltage field emitter cathode offers distinct advantages for high‐frequency applications. It is based on a directionally solidified ZrO2⋅Y2O3–W eutectic composite containing aligned, single‐crystal tungsten fibers,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35c537e7fee332d8cf404ae5320597f4
https://doi.org/10.1116/1.586932
https://doi.org/10.1116/1.586932
Publikováno v:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures. 11:1270
Successful application of field emitter array cathodes at microwave frequencies is dependent upon significant progress in emitter development. Two factors are of primary concern, namely, the transconductance and the array capacitance. To provide guid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d3495410df87b5536f78d7f0a5a6e6b
https://doi.org/10.1116/1.586928
https://doi.org/10.1116/1.586928
Publikováno v:
Review of Scientific Instruments. 47:964-967
Filament sources of all alkali metal and thallium ions have been made using 90% Pt–10% Rh gauze coated with natural or synthetic aluminosilicate materials. Details of the material preparation and emitter fabrication techniques are discussed. The va
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::320becedb6d6f14563e6c7c1b44244f1
https://doi.org/10.1063/1.1134782
https://doi.org/10.1063/1.1134782
Publikováno v:
Physical Review A. 13:54-57
Absolute cross sections for the single ionization of Tl$sup +$ ions by electron impact have been measured as a function of electron energy from below threshold to approximately 2000 eV. It was found that the cross section increased from a zero value
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eab21bb965f6202814476d5e7de9a456
https://doi.org/10.1103/physreva.13.54
https://doi.org/10.1103/physreva.13.54
Publikováno v:
Physical Review A. 13:167-179
A microwave transient-response technique has been used to determine electron-neutral elastic momentum-transfer collision frequencies in argon as a function of electron energy in the range from 0.08 to 4 eV. An analytical technique has been developed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57946fa00fa80367b4ad028529291aa6
https://doi.org/10.1103/physreva.13.167
https://doi.org/10.1103/physreva.13.167