Zobrazeno 1 - 10
of 87
pro vyhledávání: '"W.B. Haynes"'
Autor:
W.B. Haynes, Michael B. Treiman, Elias Pulliam, M. T. Reiten, Ching-Fong Chen, Quinn R. Marksteiner, Dale Allen Dalmas
Publikováno v:
The Review of scientific instruments. 88(6)
A resonant cavity method is presented which can measure loss tangents and dielectric constants for materials with dielectric constant from 150 to 10 000 and above. This practical and accurate technique is demonstrated by measuring barium strontium zi
Autor:
Anna Llobet, W.B. Haynes, Pallas A. Papin, Michael B. Treiman, Dennis R. Guidry, Quinn R. Marksteiner, Graham King, Dale Allen Dalmas, Ching-Fong Chen, Thomas A. Wynn
Publikováno v:
Journal of Materials Science. 48:5788-5800
The sol–gel method was used to synthesize two different Ba0.75Sr0.25Ti0.95Zr0.05O3 powders: one of high purity and the other of low purity. These two sol–gel-synthesized powders show two distinct particle sizes and surface areas. The slip casting
Publikováno v:
IEEE Transactions on Plasma Science. 34:2404-2413
In this paper, a new numerical model for space-charge forces in electron beams based on a Green's function approach is described. In this model, the beam is simulated by a series of rings with nonzero thickness and length. The space-charge force on a
Autor:
W.B. Haynes, Evgenya I. Smirnova, Frank L. Krawczyk, F.P. Romero, L.M. Earley, Zhi-Fu Wang, Bruce E. Carlsten, Steven J. Russell
Publikováno v:
IEEE Transactions on Plasma Science. 34:2393-2403
A gain experiment was performed at Los Alamos using a 120-keV 2-A cylindrical electron beam with a ridged waveguide slow-wave structure at 94 GHz, demonstrating 22 dB of amplification through a traveling-wave interaction. The structure was planar wit
Autor:
W.B. Haynes, Bruce E. Carlsten
Publikováno v:
IEEE Transactions on Plasma Science. 24:1249-1258
We theoretically and numerically investigate the operation and behavior of the discrete monotron oscillator, a novel high-power microwave source. The discrete monotron differs from conventional monotrons and transit time oscillators by shielding the
Autor:
Michael A. Madrid, James F. O'Hara, Terry Grimm, Eric Olivas, Sergey Arsenyev, W.B. Haynes, Walter M. Tuzel, Dmitry Yu. Shchegolkov, C. H. Boulware, Sergey S. Kurennoy, Tsuyoshi Tajima, Evgenya I. Simakov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::166b652985e7b63b0f2fa646b701473c
https://doi.org/10.2172/1054674
https://doi.org/10.2172/1054674
Publikováno v:
IEEE Transactions on Plasma Science. 22:730-739
We examine beam-cavity interaction physics relevant to mildly relativistic, intense-beam klystron amplifiers. This is an interesting but difficult regime of operation, because of the combination of high beam current and low voltage. The advantage of
Publikováno v:
IEEE Transactions on Plasma Science. 22:719-729
In this paper, we examine intense space-charge beam physics that is relevant to beam bunching and extraction in a mildly relativistic klystron amplifier, and give numerical examples for a 5 kA, 500 keV electron beam in a 1.3 GHz structure. Much of th
Autor:
R. Renneke, L.M. Earley, Dale Allen Dalmas, Dmitry Yu. Shchegolkov, W.B. Haynes, Evgenya I. Simakov
Publikováno v:
2011 Abstracts IEEE International Conference on Plasma Science.
Compact, efficient, high-bandwidth and high-power mm-wave sources are essential for many applications in secure communications, environmental monitoring, imaging, spectroscopy for remote sensing in nonproliferation, and basic research such as radio a