Generation of Long Life Plasma and Strong Magnetic Field by CO2 Laser
1986
Long life plasma is generated when a focused CO2 laser beam is injected into a cavity.1) A hot core of plasma is observed at the center of cavity separated from the surface of the cavity wall. The temperature is measured to be 300 ~ 600 eV by X-ray spectroscopy and filtered X-ray diode. The life time of the plasma, 10 ~ 30 ns, is much longer than the cooling time by the thermal conduction.
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