P Hartmann et al 2000 Plasma Sources Sci. Technol. 9 183 doi:10.1088/0963-0252/9/2/311
Effect of different elementary processes on the breakdown in low-pressure helium gas
P Hartmann, Z Donkó, G Bánó, L Szalai and K Rózsa
Show affiliationsWe investigated the breakdown in low-pressure helium gas both experimentally and by computer simulations. At low breakdown voltages (VBR 
1000 V) the experimental and simulation results show a good agreement (differences are within 20%), while at higher voltages the simulations and experiments agree qualitatively. Our simulations indicate that several processes contribute to the particular shape of the Paschen curve in helium at low pressures. These processes are: (1) the dependence of the (ion-induced) secondary electron emission yield on the ion energy, (2) the appearance of ion impact ionization of the gas at high electric fields and (3) the secondary electron emission from the cathode due to fast neutral atoms.
- PACS
-
52.20.-j Elementary processes in plasmas
51.50.+v Electrical properties (ionization, breakdown, electron and ion mobility, etc.)
- Subjects
- Dates
-
Issue 2 (May 2000)
Received 11 August 1999, in final form 26 January 2000
-
Effect of different elementary processes on the breakdown in low-pressure helium gas
P Hartmann et al 2000 Plasma Sources Sci. Technol. 9 183
-
Intermediate scale supersymmetric inflation, matter and dark energy
G L Kane and S F King 2001 New J. Phys. 3 21
-
BRST cohomology and nonlocal conserved charges
Nathan Berkovits JHEP02(2005)060
-
XMM-Newton Observations of SDSS J143030.22 – 001115.1: An Unusually Flat-Spectrum Active Galactic Nucleus
S. Mathur et al. 2009 The Astronomical Journal 138 1655
-
Variational approach for a generalized Davey-Stewartson system
L Xu and N Zhang 2008 J. Phys.: Conf. Ser. 96 012209
-
Quintessence, inflation and baryogenesis from a single pseudo-Nambu-Goldstone boson
Gabriela Barenboim and Joseph D. Lykken JHEP10(2007)032
-
Modeling the Astronomical Silicate Mineralogy: On the Effects of Grain Temperature
Moping Li et al 2004 ApJ 613 L145
-
Determination of the refractive indices of highly biaxial anisotropic coatings using guided modes
H Jänchen et al 1996 Pure Appl. Opt. 5 405
-
Geometrical aspects of weak measurements and quantum erasers
S Tamate et al 2009 New J. Phys. 11 093025
-
Emergence of agent swarm migration and vortex formation through inelastic collisions
D Grossman et al 2008 New J. Phys. 10 023036