Spectroscopic studies of the decay of hydrogen plasmas in aT-tube |
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Authors: | M Pavlov A N Prasad |
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Institution: | 1. Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK
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Abstract: | This paper reports on spectroscopic studies of the decay of hydrogen plasmas generated in a relatively low energyT-tube of conventional design equipped with a reflector. These measurements indicate that the plasma behind the reflected front is not quiescent, but suffers a severe expansion with flow velocities ~105 cm s?1 (velocities of the incident and the reflected front are 7×106 and 3.4×106 cm s?1). The net energy loss during the first two microseconds of the decay is almost entirely due to radiative losses (principally Ly-α radiation) and no significant radial temperature gradients are observed. |
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