Zobrazeno 1 - 10
of 30
pro vyhledávání: '"R. A. Meger"'
Publikováno v:
Plasma Sources Science and Technology. 9:370-386
A large-area plasma processing system (LAPPS) is under development at the Naval Research Laboratory. In the LAPPS, the plasma is generated by a sheet electron beam with voltages and current densities of the order of kilovolts and tens of milliamps pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eea30b825068ae2f6134f63dd318fa4
https://doi.org/10.1088/0963-0252/9/3/316
https://doi.org/10.1088/0963-0252/9/3/316
Publikováno v:
Journal of Applied Physics. 80:4249-4257
The propagation of intense, relativistic electron beams in air is subject to the resistive hose instability. Conditioning the beam prior to injecting it into the air can extend its range by reducing the hose growth rate and by reducing the initial sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aed1fa24ac9a6fb455833e81464c0268
https://doi.org/10.1063/1.363384
https://doi.org/10.1063/1.363384
Autor:
Richard F. Fernsler, D. P. Murphy, Richard F. Hubbard, J. A. Antoniades, R. A. Meger, M.C. Myers
Publikováno v:
Journal of Applied Physics. 80:4258-4267
An intense relativistic electron beam injected into dense gas characteristically propagates in a self‐pinched mode but is susceptible to the resistive hose instability. This convective instability typically leads to large amplitude beam motion and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdebd1d6ff9663ecd4811feb23d57ead
https://doi.org/10.1063/1.363385
https://doi.org/10.1063/1.363385
Autor:
D. P. Murphy, Richard F. Fernsler, M.C. Myers, J. A. Antoniades, Richard F. Hubbard, R. A. Meger
Publikováno v:
Journal of Applied Physics. 78:3580-3591
Conducting tubes filled with neutral gas at pressures between 0.001 and 0.1 Torr can be used to transport, to center, and to reduce the transverse oscillations of high current (≳10 kA) electron beams. Electron impact ionization of the gas leads to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0e4db34c0af86ff62ea09288ebf9d0b
https://doi.org/10.1063/1.359933
https://doi.org/10.1063/1.359933
Publikováno v:
Applied Physics Letters. 83:626-628
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7151492605d126448796e87d80d881f
https://doi.org/10.1063/1.1595155
https://doi.org/10.1063/1.1595155
Autor:
R. A. Meger
NRL has initiated a program in electromagnetic (EM) launcher technology focusing on railgun materials science issues. A railgun consists of a power supply that drives current through a pair of conductors or rails to accelerate a projectile to high ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b285346e10ca7a822b2aa98e7e4502ed
https://doi.org/10.21236/ada521513
https://doi.org/10.21236/ada521513
Autor:
R. E. Pechacek, D. P. Murphy, R. A. Meger, Wallace M. Manheimer, J.A. Gregor, Richard F. Fernsler, J. Mathew
Publikováno v:
Proceedings of International Symposium on Phased Array Systems and Technology.
Electronic steering of microwave beams using a plasma mirror allows the use of wide instantaneous bandwidth waveforms. Areas of application for a plasma mirror based antenna system include ship self-defense, high-resolution radar imaging, high data r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5714fdba4246634ec06527dc1616b2f0
https://doi.org/10.1109/past.1996.565935
https://doi.org/10.1109/past.1996.565935
Publikováno v:
ICOPS 2000. IEEE Conference Record - Abstracts. 27th IEEE International Conference on Plasma Science (Cat. No.00CH37087).
Summary form only given. An initial theoretical study of LAPPS has focused on plasma and free radical production, ion fluxes to substrates, uniformity of the plasma and flux for insulating and conducting substrates, as well as DC and RF sheaths. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::155ec99eb9a1e477ee8c6200b3d460f3
https://doi.org/10.1109/plasma.2000.854829
https://doi.org/10.1109/plasma.2000.854829
Detailed scans of x-band microwave transmission, reflection and noise emission of various Agile Mirror plasma sheets as a function of frequency have been performed. The reflected microwave signal from the plasma sheet is compared to that reflected fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e45274dc464a2c4f0e6027bbd0de2ca
https://doi.org/10.21236/ada364135
https://doi.org/10.21236/ada364135
A study of emittance measurements using a slit pinhole type emittance meter is conducted using a 1 MeV, 18 ka electron beam. The beam is passed through titanium foils of varying thickness and the emittance is measured downstream. Two different types
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19809c14b87480457ab1c9669ad84baa
https://doi.org/10.21236/ada457945
https://doi.org/10.21236/ada457945