Zobrazeno 1 - 10
of 214
pro vyhledávání: '"J.W. Schumer"'
Autor:
P. S. Kim, S. A. Martin, Ian M. Rittersdorf, Vadim V. Yakovlev, Brad W. Hoff, A. S. Richardson, J.W. Schumer
Publikováno v:
IEEE Transactions on Plasma Science. 49:695-702
A heat exchanger, based on a millimeter-wave absorbing ceramic composite, is under development. This article describes a 1-D finite-difference model that is used in the design of the heat exchanger. The purpose of this model is to offer a design tool
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c75c5444d5dd9e15c768b7c44e7e7e1
https://doi.org/10.1109/tps.2021.3051108
https://doi.org/10.1109/tps.2021.3051108
Autor:
S.B. Swanekamp, A. S. Richardson, J.W. Schumer, P. F. Ottinger, D. Mosher, Paul E. Adamson, J. C. Foster, D.D. Hinshelwood
Publikováno v:
2021 IEEE International Conference on Plasma Science (ICOPS).
A pinched-beam diode consists of a thin annular cathode which emits electrons that are accelerated toward a planar anode. Once the energy deposited by the electrons on the anode is sufficiently large, a plasma forms on the anode and the electrons are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdf0be8bb21f1fb4a6ee3af06a401a74
https://doi.org/10.1109/icops36761.2021.9588443
https://doi.org/10.1109/icops36761.2021.9588443
Akademický článek
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Autor:
P. F. Ottinger, Ian M. Rittersdorf, D.D. Hinshelwood, J.W. Schumer, Raymond J. Allen, Stuart L. Jackson
Publikováno v:
2019 IEEE Pulsed Power & Plasma Science (PPPS).
Several experiments have shown that the anode initiates breakdown of vacuum gaps in cases where the anode and cathode field enhancements are approximately equal [1]. The previous understanding was that only explosive emission at the cathode initiates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a660c792246380a976d015f61ba1383
https://doi.org/10.1109/ppps34859.2019.9009926
https://doi.org/10.1109/ppps34859.2019.9009926
Autor:
Jakub Cikhardt, Daniel Klir, J. T. Engelbrecht, B.V. Weber, J.W. Schumer, John Giuliani, Andrey Beresnyak, A. A. Mamonau, Karel Rezac, Stuart L. Jackson
Publikováno v:
2019 IEEE Pulsed Power & Plasma Science (PPPS).
The 670 kA Hawk pulsed power generator at NRL has been configured as a fast (1.2 µs rise time), high inductance (607 nH) driver for a dynamic dense plasma focus (DPF) load in order to create a testbed for the study of charged particle acceleration m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e47dfcd6b29520f760e28110e33df2c
https://doi.org/10.1109/ppps34859.2019.9009625
https://doi.org/10.1109/ppps34859.2019.9009625
Autor:
S. B. Swanekamp, Todd Haines, M. P. McCumber, P.F. Ottinger, J.W. Schumer, J. T. Engelbrecht, Amanda Gehring, A. S. Richardson, D. Mosher, J. C. Zier, D. L. Duke
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 5, p 050401 (2019)
An experimental campaign was recently completed at the U.S. Naval Research Laboratory’s Mercury pulsed-power facility, where the feasibility of using a 5 MV inductive voltage adder (IVA) as a pulsed photoneutron source was studied. In these experim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53c4ff3b5d1ceab0931b1e9ecf058931
https://doi.org/10.1103/physrevaccelbeams.22.050401
https://doi.org/10.1103/physrevaccelbeams.22.050401
Autor:
Todd Haines, J. C. Zier, A. S. Richardson, K. D. Meaney, D. Mosher, M. Heika, D. Duke, B. White, Amanda Gehring, Stuart A. Baker, D. Wolfe, Andrew Corredor, Paul Flores, Hans W. Herrmann, K. Brown Montoya, Logan Fegenbush, James E. Smith, J.W. Schumer, M. Boswell, Brady B. Gall, Stuart L. Jackson, Darryl W. Droemer, Yong Ho Kim, M. P. McCumber, C. Kruschwitz, C. R. Johnson, Michelle Espy, E. Ormond, Thomas N. Archuleta
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
Recent experiments on the Mercury pulsed power accelerator were performed with a large-area bremsstrahlung diode operated at 5 MV. Extensive measurements of the x-ray dose distribution were made using TLDs, both in the near field and far field of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adf56db1d44f57a686b8493cf205b5eb
https://doi.org/10.1109/icops35962.2018.9575470
https://doi.org/10.1109/icops35962.2018.9575470
Autor:
Yitzhak Maron, Ian M. Rittersdorf, John Giuliani, Jakub Cikhardt, Daniel Klir, A. S. Richardson, Peter Stoltz, Christine Roark, Anton Spirkin, Evgeny Stambulchik, J. T. Engelbrecht, A. Bcrcsnyak, J.W. Schumer, John W. Luginsland, Stuart L. Jackson, Karel Rezac, B.V. Weber
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
The Naval Research Laboratory's Hawk pulsed power generator is being used to drive a dense plasma focus (DPF) in order to study the phenomenon of charged particle acceleration in imploding plasmas. The fast rise time, 1.2 μS, and high inductance, 60
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6009b50b4e1d7334411c0bb2af3d14c9
https://doi.org/10.1109/icops35962.2018.9575487
https://doi.org/10.1109/icops35962.2018.9575487
Autor:
A. S. Richardson, Evgeny Stambulchik, Daniel Klir, J.W. Schumer, Yitzhak Maron, Karel Rezac, Ian M. Rittersdorf, B.V. Weber, John Giuliani, Jakub Cikhardt, J. T. Engelbrecht, Andrey Beresnyak, Stuart L. Jackson
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
The 650 kA Hawk pulsed power generator at NRL has been configured as a fast (1.2 μs), high in ductance (607 nH) driver for a dense plasma focus load. The current pulse is initiated in a radially injected deuterium plasma. This plasma is accelerated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c02d781918adac1254c73f5d2e474f4
https://doi.org/10.1109/icops35962.2018.9575371
https://doi.org/10.1109/icops35962.2018.9575371
Autor:
P.F. Ottinger, Ian M. Rittersdorf, J.W. Schumer, Stuart L. Jackson, D.D. Hinshelwood, Raymond J. Allen
Publikováno v:
2018 IEEE International Conference on Plasma Science (ICOPS).
Strong evidence for the emission of ions from anode surfaces as being a mechanism for the initiation of cathode plasma formation and electrical breakdown of vacuum gaps has been previously presented.1 It was shown, for example, that treatment of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13eb97a8647b0a72e3b961b4d056b4e0
https://doi.org/10.1109/icops35962.2018.9575794
https://doi.org/10.1109/icops35962.2018.9575794