Zobrazeno 1 - 10
of 265
pro vyhledávání: '"Cary, John R."'
Publikováno v:
Phys. Plasmas 31(8), 083102 (2024)
Numerical solutions to the 1D steady-state Vlasov-Poisson system are used to develop a straightforward empirical formula for the electric current density transmitted through a vacuum diode (voltage gap) as a function of gap distance, gap voltage, the
Externí odkaz:
http://arxiv.org/abs/2409.04355
Numerical simulations of laser-plasma interactions demonstrate the generation of axially polarized electromagnetic pulses (EMPs) that radiate away energy with a characteristic frequency determined by the plasma frequency, in the THz range for typical
Externí odkaz:
http://arxiv.org/abs/2111.06143
Publikováno v:
Physics of Plasmas 29(1), 013502 (2022)
First-principles particle-in-cell (PIC) simulation is a powerful tool for understanding plasma behavior, but this power often comes at great computational expense. Artificially reducing the ion/electron mass ratio is a time-honored practice to reduce
Externí odkaz:
http://arxiv.org/abs/2109.12765
Upon inclusion of collisions, the speed-limited particle-in-cell (SLPIC) simulation method successfully computed the Paschen curve for argon. The simulations modelled an electron cascade across an argon-filled capacitor, including electron-neutral io
Externí odkaz:
http://arxiv.org/abs/2103.12194
Publikováno v:
Phys. Plasmas 28, 062107 (2021)
This paper discusses temporally continuous and discrete forms of the speed-limited particle-in-cell (SLPIC) method first treated by Werner et al. [Phys. Plasmas 25, 123512 (2018)]. The dispersion relation for a 1D1V electrostatic plasma whose fast pa
Externí odkaz:
http://arxiv.org/abs/2102.11988
Many high power electronic devices operate in a regime where the current they draw is limited by the self-fields of the particles. This space-charge-limited current poses particular challenges for numerical modeling where common techniques like over-
Externí odkaz:
http://arxiv.org/abs/2007.01916
Autor:
Scherkl, Paul, Knetsch, Alexander, Heinemann, Thomas, Sutherland, Andrew, Habib, Ahmad Fahim, Karger, Oliver, Ullmann, Daniel, Beaton, Andrew, Kirwan, Gavin, Manahan, Grace, Xi, Yunfeng, Deng, Aihua, Litos, Michael Dennis, OShea, Brendan D., Green, Selina Z., Clarke, Christine I., Andonian, Gerard, Assmann, Ralph, Jaroszynski, Dino A., Bruhwiler, David L., Smith, Jonathan, Cary, John R., Hogan, Mark J., Yakimenko, Vitaly, Rosenzweig, James B., Hidding, Bernhard
Modern particle accelerators and their applications increasingly rely on precisely coordinated interactions of intense charged particle and laser beams. Femtosecond-scale synchronization alongside micrometre-scale spatial precision are essential e.g.
Externí odkaz:
http://arxiv.org/abs/1908.09263
Autor:
Deng, Aihua, Karger, Oliver, Heinemann, Thomas, Knetsch, Alexander, Scherkl, Paul, Manahan, Grace Gloria, Beaton, Andrew, Ullmann, Daniel, Wittig, Gregor, Habib, Ahmad Fahim, Xi, Yunfeng, Litos, Mike Dennis, O'Shea, Brendan D., Gessner, Spencer, Clarke, Christine I., Green, Selina Z., Lindstrøm, Carl Andreas, Adli, Erik, Zgadzaj, Rafal, Downer, Mike C., Andonian, Gerard, Murokh, Alex, Bruhwiler, David Leslie, Cary, John R., Hogan, Mark J., Yakimenko, Vitaly, Rosenzweig, James B., Hidding, Bernhard
Plasma waves generated in the wake of intense, relativistic laser or particle beams can accelerate electron bunches to giga-electronvolt (GeV) energies in centimetre-scale distances. This allows the realization of compact accelerators having emerging
Externí odkaz:
http://arxiv.org/abs/1907.00875
Autor:
Cary, John R.
This paper had no abstract originally. A second-order symplectic integration algorithm for guiding center motion is presented. The algorithm is based on the Poincar\'e (mid-point) generating function.
Comment: This paper was originally sent to J
Comment: This paper was originally sent to J
Externí odkaz:
http://arxiv.org/abs/1809.05498
Autor:
Higuera, Adam V., Cary, John R.
Time-centered, hence second-order, methods for integrating the relativistic momentum of charged particles in an electromagnetic field are derived. A new method is found by averaging the momentum before use in the magnetic rotation term, and an implem
Externí odkaz:
http://arxiv.org/abs/1701.05605