Monte Carlo calculation of resonant diffusion coefficients in the ELMO Bumpy Torus and the applicability of local diffusion theory

1983 ◽  
Vol 26 (6) ◽  
pp. 1391 ◽  
Author(s):  
J. S. Tolliver
Keyword(s):  
Monte Carlo ◽  
Diffusion Coefficients ◽  
Monte Carlo Calculation ◽  
Diffusion Theory ◽  
Local Diffusion

Radiolysis of supercritical water at 400 °C and liquid-like densities near 0.5 g/cm3 — A Monte Carlo calculation

2010 ◽  
Vol 88 (7) ◽  
pp. 646-653 ◽  
Author(s):  
Jintana Meesungnoen ◽  
David Guzonas ◽  
Jean-Paul Jay-Gerin
Keyword(s):  
Monte Carlo ◽  
Supercritical Water ◽  
Diffusion Coefficients ◽  
Monte Carlo Calculation ◽  
Picosecond Pulse ◽  
Good Accord ◽  
Radiation Induced ◽  
Sum Formula ◽  
Available Information ◽  
And Diffusion

Monte Carlo simulations are used to calculate the primary radical yields [Formula: see text], g(•OH), the sum [[Formula: see text] + g(•OH) + g(H•)], and the ratio g(H•)/[Formula: see text] in the low linear energy transfer (LET) radiolysis of supercritical water (SCW) at 400 °C in the high-density, liquid-like region near ∼0.5 g/cm3. Using all the currently available information on the reactivities and diffusion coefficients of the radiation-induced species under these conditions, and assuming the aqueous medium to be a “continuum”, a good accord is found between our calculations and the available experimental data. In particular, our computed [Formula: see text] yields at 60 ps and 1 ns compare very well with recently reported direct time-dependent [Formula: see text] yield measurements in SCW (D2O) at 400 °C and 0.570 g/cm3 using picosecond pulse radiolysis experiments.

Monte Carlo calculation of the energy parameters and spatial distribution of the cathodic arc ions while passing through the macro-particles filters

2018 ◽  
Vol 1 (1) ◽  
pp. 30-34 ◽  
Author(s):  
Alexey Chernogor ◽  
Igor Blinkov ◽  
Alexey Volkhonskiy
Keyword(s):  
Magnetic Field ◽  
Mass Transfer ◽  
Monte Carlo ◽  
Monte Carlo Calculation ◽  
Inhomogeneous Magnetic Field ◽  
Flow Energy ◽  
Wide Range ◽  
Field Concentrator ◽  
Cathodic Arc ◽  
The Magnetic Field

The flow, energy distribution and concentrations profiles of Ti ions in cathodic arc are studied by test particle Monte Carlo simulations with considering the mass transfer through the macro-particles filters with inhomogeneous magnetic field. The loss of ions due to their deposition on filter walls was calculated as a function of electric current and number of turns in the coil. The magnetic field concentrator that arises in the bending region of the filters leads to increase the loss of the ions component of cathodic arc. The ions loss up to 80 % of their energy resulted by the paired elastic collisions which correspond to the experimental results. The ion fluxes arriving at the surface of the substrates during planetary rotating of them opposite the evaporators mounted to each other at an angle of 120° characterized by the wide range of mutual overlapping.

scholarly journals Local Diffusion Theory for Localized Waves in Open Media

2010 ◽  
Vol 105 (26) ◽  
Author(s):  
Chu-Shun Tian ◽  
Sai-Kit Cheung ◽  
Zhao-Qing Zhang
Keyword(s):  
Diffusion Theory ◽  
Local Diffusion ◽  
Localized Waves
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