Zobrazeno 1 - 10
of 36
pro vyhledávání: '"D. G. Phipps"'
Autor:
Baptiste Guegan, F. Bayol, D.P. Murphy, R.J. Commisso, Pierre-Alban Gouy, D. G. Phipps, J. T. Engelbrecht, Frederique Gemain, B.V. Weber, Jerome Carnis
Publikováno v:
IEEE Transactions on Plasma Science. 48:3877-3889
Cylindrical reflex triodes (CRTs) driven by a pulsed power generator can produce relatively low-endpoint X-ray spectra (~250 keV) that can be suitable for certain radiation–matter interaction studies. CRTs have several advantages over other reflex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7863caee4bdb62a7a9812dd57f4d0325
https://doi.org/10.1109/tps.2020.3031860
https://doi.org/10.1109/tps.2020.3031860
Autor:
N. R. Pereira, Marek Polasik, D. G. Phipps, Katarzyna Słabkowska, E. Szymańska, J.W. Schumer, J. Rzadkiewicz, J. F. Seely, B.V. Weber, J. J. Carroll, J. R. Vanhoy
Publikováno v:
High Energy Density Physics. 9:500-504
A recent measurement [1] demonstrates that iridium's Kα2-line, centered at ≃63286.96 eV for a cold atom, increases ≃+10 eV in energy when it is emitted by a modestly (∼17×) ionized plasma. This measurement, enabled by a near-coincident luteti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::841c8a5d80f516b667c9def045fddd61
https://doi.org/10.1016/j.hedp.2013.03.011
https://doi.org/10.1016/j.hedp.2013.03.011
Autor:
Lawrence T. Hudson, B.V. Weber, D. G. Phipps, J. Rzadkiewicz, N. R. Pereira, J.W. Schumer, Stephanie Hansen, J Starosta, John F. Seely, Marek Polasik, Uri Feldman, D. Mosher, Katarzyna Słabkowska
Publikováno v:
High Energy Density Physics. 9:354-362
Spectra of the W L transitions in the energy range 8e12 keV from warm dense plasmas generated by theNaval Research Laboratory’s Gamble II pulsed power machine were recorded bya newly developed high-resolution transmission-crystal X-ray spectrometer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::106dfd7530d4a6592390d906ff7e859a
https://doi.org/10.1016/j.hedp.2013.03.005
https://doi.org/10.1016/j.hedp.2013.03.005
Autor:
B.V. Weber, Stuart C. Pope, D.P. Murphy, James R. Threadgold, T. Carden, D. Swatton, S.J. Stephanakis, S.G. Clough, R.J. Commisso, Mark A. Sinclair, D.D. Hinshelwood, P.F. Ottinger, Raymond J. Allen, A. Jones, S.B. Swanekamp, G. Cooperstein, Joseph W. Schumer, D. Mosher, Lester A. Biddle, Bryan V. Oliver, D. G. Phipps
Publikováno v:
IEEE Transactions on Plasma Science. 36:443-456
The plasma-filled rod-pinch diode (PFRP) is a new X-ray source appropriate for pulsed hydrodynamic radiography with endpoint voltage in the 1-2 MV range. The use of a plasma prefill in a rod-pinch-electrode configuration results in intense concentrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80f02fbb4d493ab3679f47d00ad2f11b
https://doi.org/10.1109/tps.2008.918953
https://doi.org/10.1109/tps.2008.918953
Autor:
J. R. Angus, B.V. Weber, D. G. Phipps, D.D. Hinshelwood, C. N. Boyer, Stuart L. Jackson, P.F. Ottinger, A. S. Richardson, R.J. Commisso, D.P. Murphy, J.W. Schumer, S.B. Swanekamp
Publikováno v:
2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS).
Magnetic field penetration in current-carrying plasmas is being studied in a plasma opening switch geometry. Several Marshall guns1 are used to inject single or multi-species plasmas between coaxial conductors connected to the output of NRL's Hawk pu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29e717d478c04b4ae9a7095af472f5e4
https://doi.org/10.1109/plasma.2014.7012368
https://doi.org/10.1109/plasma.2014.7012368
Publikováno v:
2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS).
Reflex triodes with cylindrical converters made from thin tantalum were developed for producing x-rays at high fluence in the warm (10–100 keV) region of the bremsstrahlung spectrum.1 This paper presents results from the first experiment with two c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bf5fbd59ee8a71ece8327da1bed8107
https://doi.org/10.1109/plasma.2014.7012700
https://doi.org/10.1109/plasma.2014.7012700
Autor:
B.V. Weber, D. G. Phipps, S.B. Swanekamp, D.D. Hinshelwood, A. S. Richardson, Stuart L. Jackson, C. N. Boyer, R.J. Commisso
Publikováno v:
2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS).
We are studying species separation and magnetic field penetration in current-carrying plasmas in a coaxial plasma opening switch geometry1. PIC modeling has shown that these processes are dependent upon the radial density gradient and multi-species c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1779468a62b4cb57fbacfdfd1ee4686
https://doi.org/10.1109/plasma.2014.7012369
https://doi.org/10.1109/plasma.2014.7012369
Autor:
J.W. Schumer, D. G. Phipps, Stuart L. Jackson, P. F. Ottinger, S.B. Swanekamp, A. S. Richardson
Publikováno v:
2014 IEEE 41st International Conference on Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS).
Understanding the interaction of a strong magnetic field with a plasma is one of the fundamental problems in plasma physics. In this talk we report on a new systematic study using two-dimensional particle-in-cell simulations designed to explore the i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fccc41a3cb0ad8e6a4ee2db97c88a9c
https://doi.org/10.1109/plasma.2014.7012230
https://doi.org/10.1109/plasma.2014.7012230
Publikováno v:
2013 19th IEEE Pulsed Power Conference (PPC).
High energy-density plasma (HEDP) is created using a plasma-filled rod pinch diode (PFRP) [1] on the Gamble II generator. HEDP is produced by a 1-2 MeV, 500 kA electron beam that deposits energy at the end of a tungsten rod. When the rod is tapered t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c04bad9c63c8286e1a5b738dbc50bbcb
https://doi.org/10.1109/ppc.2013.6627449
https://doi.org/10.1109/ppc.2013.6627449
Autor:
D. G. Phipps, Joseph W. Schumer, J. F. Seely, B.V. Weber, N. R. Pereira, K. Słabkowska, M. Polasik, J. J. Carroll, J. R. Vanhoy
Publikováno v:
The Review of scientific instruments. 83(10)
Close to an x-ray filter's K-edge the transmission depends strongly on the photon energy. For a few atom pairs, the K-edge of one is only a few tens of eV higher than a K-line energy of another, so that a small change in the line's energy becomes a m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6494ddef85f4fd1a43c74339ee4946a
https://pubmed.ncbi.nlm.nih.gov/23126932
https://pubmed.ncbi.nlm.nih.gov/23126932