Transport effects of interacting hot and cold electrons in laser-heated plasmas

Journal Article · Thu May 01 00:00:00 EDT 1986 · Fusion Technol.; (United States)

OSTI ID:5728065

Campbell, P M

The observation that heat flux anomalies may be related to laser intensity with a threshold of approx. =1 X 10/sup 14/ W/cm/sup 2/ suggests that hot electrons, which become significant for values of Ilambda/sup 2/ above this threshold, may be a factor in the observed reduction of thermal heat flow. A formulation of heat transport in plasmas with a two-component electron distribution is developed, and solutions are found that are valid in large gradients. Specific transport effects arising from the hot and cold electron interaction are demonstrated in sample calculations. It is found that when the interaction between the two electron groups is considered in conjunction with the properties of hot electron formation, many of the heat flow anomalies observed in experiments can be explained.

• Research Organization: KMS Fusion, Inc., Ann Arbor, MI 48106
• OSTI ID: 5728065
• Journal Information: Fusion Technol.; (United States), Vol. 9:3
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER-PRODUCED PLASMA
HEAT TRANSFER
PLASMA
LASER-RADIATION HEATING
ELECTRONS
HEAT FLUX
RESEARCH PROGRAMS
ELEMENTARY PARTICLES
ENERGY TRANSFER
FERMIONS
HEATING
LEPTONS
PLASMA HEATING
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production
700106 - Fusion Energy- Plasma Research- Plasma Production- (-1987)