Variance-reduction technique for Coulomb-nuclear thermalization of energetic fusion products in hot plasmas [electronic resource].
- Published
- Urbana, Ill. : University of Illinois at Urbana-Champaign, 1982.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- Pages: 6 : digital, PDF file
- Additional Creators
- University of Illinois at Urbana-Champaign and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- A variance-reduction technique involving use of exponential transform and angular-biasing methods has been developed. Its purpose is to minimize the variance and computer time involved in estimating the mean fusion product (fp) energy deposited in a hot, multi-region plasma under the influence of small-energy transfer Coulomb collisions and large-energy transfer nuclear elastic scattering (NES) events. This technique is applicable to high-temperature D-/sup 3/He, Cat. D and D-T plasmas which have highly energetic fps capable of undergoing NES. A first application of this technique is made to a D-/sup 3/He Field Reversed Mirror (FRM) where the Larmor radius of the 14.7 MeV protons are typically comparable to the plasma radius (plasma radius approx. 2 fp gyroradii) and the optimistic fp confinement (approx. 45% of 14.7 MeV protons) previously predicted is vulnerable to large orbit perturbations induced by NES. In the FRM problem, this variance reduction technique is used to estimate the fractional difference in the average fp energy deposited in the closed-field region, E/sub cf/, with and without NES collisions.
- Report Numbers
- E 1.99:conf-821103-16
E 1.99: coo-2218-250
coo-2218-250
conf-821103-16 - Subject(s)
- Other Subject(s)
- Coulomb Scattering
- Analytical Solution
- Field-Reversed Mirror Reactors
- Alpha Particles
- Deuterium
- Helium 3.
- Hot Plasma
- Protons
- Tritium
- Baryons
- Basic Interactions
- Beta Decay Radioisotopes
- Beta-Minus Decay Radioisotopes
- Charged Particles
- Elastic Scattering
- Electromagnetic Interactions
- Elementary Particles
- Even-Odd Nuclei
- Fermions
- Hadrons
- Helium Isotopes
- Hydrogen Isotopes
- Interactions
- Isotopes
- Light Nuclei
- Magnetic Mirror Type Reactors
- Nuclei
- Nucleons
- Odd-Even Nuclei
- Odd-Odd Nuclei
- Plasma
- Radioisotopes
- Scattering
- Stable Isotopes
- Thermonuclear Reactors
- Years Living Radioisotopes
- Note
- Published through SciTech Connect.
01/01/1982.
"conf-821103-16"
" coo-2218-250"
"DE82020203"
American Nuclear Society winter meeting, Washington, DC, USA, 14 Nov 1982.
Miley, G.H.; DeVeaux, J.C. - Funding Information
- AC02-76ET52040
View MARC record | catkey: 14756331