1977
DOI: 10.1063/1.861900
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Supersonic-subsonic flow transition and shock formation and propagation in a dense plasma beam

Abstract: The axial flow of a supersonic high density plasma beam into an asymmetric mirror machine has been investigated experimentally. It has been found that in front of the second mirror peak, two supersonic-subsonic flow transitions and shock formations occur. The subsequent motion upstream, of the first and stronger shock front has been measured by the time-of-flight method through diamagnetic loop and electric double probe signals. The shock front speed has been found to be one third the speed of sound in the nei… Show more

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Cited by 1 publication
(6 citation statements)
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“…In the absence of microwaves the signal decay curve is smooth, indicating the absence of a shock front propagating upstream in agreement with earlier theory and experiment, Ref. [7]. When the microwave power is applied at 1 kW, then the signal decay curve shows a "bump" at 43 //s, indicating the passage of a shock front travelling upstream and having originated further downstream where it must have formed at a supersonic-subsonic flow transition.…”
Section: Resultssupporting
confidence: 89%
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“…In the absence of microwaves the signal decay curve is smooth, indicating the absence of a shock front propagating upstream in agreement with earlier theory and experiment, Ref. [7]. When the microwave power is applied at 1 kW, then the signal decay curve shows a "bump" at 43 //s, indicating the passage of a shock front travelling upstream and having originated further downstream where it must have formed at a supersonic-subsonic flow transition.…”
Section: Resultssupporting
confidence: 89%
“…The flow properties of the injected plasma stream and the shock formation and propagation upstream, in the absence of the microwaves, have been studied in detail and the results have been presented in Ref. [7]. In the presence of microwaves at 1 kW and at full magnetic field it is seen from Fig.…”
Section: Resultsmentioning
confidence: 99%
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