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e-beam spreading and resulting field variations in CO/sub 2/ laser plasmas

Conference · · AIAA (Am. Inst. Aeronaut. Astronaut.) J.; (United States)
OSTI ID:7295012
Experimental measurements and theoretical analysis of e-beam spreading in pulsed CO/sub 2/ lasers have been performed at 1 atm. An explicit set of equations were developed to describe the e-beam energy deposition, including electron range enhancement effects. Spatial variations of resulting drift current density and applied field were therefore easily determined. A 10 1 volume discharge was controlled by a 0.4 A/cm/sup 2/ 175 kV e-beam. Experimental values of the electron-ion recombination rate were experimentally determined for the 1/2/3 mixture of CO/sub 2//N/sub 2//He. The experimental I/V characteristic curves were correlated to the model for discharge current densities up to 50 A/cm/sup 2/.
OSTI ID:
7295012
Conference Information:
Journal Name: AIAA (Am. Inst. Aeronaut. Astronaut.) J.; (United States) Journal Volume: 15:8
Country of Publication:
United States
Language:
English

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