Study of the polarization of radiation of multicharged ions and bremsstrahlung continuum of a micropinch in the K α-K β region of a plasma-forming element

Dolgov, A. N.; Klyachin, N. A.; Prokhorovich, D. E.

doi:10.1134/s0021364014090045

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…In earlier works [5,6] it has been shown that an increase in storage capacitor energy considerably affects the emission characteristics of discharge and defines the degree of its pinching. Thus, at the stored energy over Edr ≥ 15 J, the flux of multiple-charged ions goes down because the degree of pinching is already rather high, and multiple-charged ions are shielded by the dense plasma constriction, and it is possible to determine only ions of the laser pre-plasma.…”

Section: Resultsmentioning

confidence: 99%

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Emission Of Multipulcharged Ions From Laser-Triggering Vacuum Discharge

Alkhimova¹

2016

Proceedings of 1st EPS Conference on Plasma Diagnostics — PoS(ECPD2015)

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The possibility of using plasma of the laser-induced vacuum discharge as a source of multiplecharged ions is considered. To this end, a sequence of measurements of the ion emission from discharge plasma was made. The laser radiation was focused on the anode surface in the focal spot with diameter D≤250 µm and with intensity on the target q≈5 ×10 9 W/cm 2 . The laser energy El = 50 ÷ 60 mJ. The choice of given geometry in this experiment has allowed us to successfully detect the ions emitted at a small angle (≈   with respect to the discharge axis. We have already established earlier that the ion yield, in the case of focusing laser radiation on the cathode of discharge system, is significantly less.The use of the storage capacitor of C=0.22 µF enabled us to vary the amount of discharge energy in the range of Edr =5÷24 J. Depending on the discharge energy the intensity of ion emission and the spectrum of charge states changed. Our measurement results allowed us to make an assumption that the work in the range of discharge energies Edr = 10÷14 J is the most effective from the point of view of the quantity of emitted multiple-charged ions. The average ion flux density was Wp = (1.5÷ 3)·10

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Section: Resultsmentioning

confidence: 99%

“…We assume that this occurs owing to the shielding of ion yield during the plasma pinching. For comparison, it should be noted [6] that for a high-current micropinch discharge in vacuum the highly charged ions produced in the hot dense plasma can be registered only by methods of Xray spectroscopy.…”

Section: Resultsmentioning

confidence: 99%

Emission Of Multipulcharged Ions From Laser-Triggering Vacuum Discharge

Alkhimova¹

2016

Proceedings of 1st EPS Conference on Plasma Diagnostics — PoS(ECPD2015)

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“…The emission of soft x-ray radiation from vacuum spark discharge under the focusing of a laser pulse on the cathode is the subject of many publications [1][2][3][4] and recently the theoretical model of such a discharge was developed [5]. What caused our interest to the laser initiation of vacuum spark discharge under the focusing of the laser beam on the anode?…”

Section: Introductionmentioning

confidence: 99%