Radiative Characteristics of Reversed Polarity Gas-Puff Ar and Kr Plasmas

Shlyaptseva, V. V.; Takasugi, Keiichi; Shikone, Takashi; Hakamatsuka, Shun; Kantsyrev, V.L.; Safronova, A.S.; Petkov, E.E.; Gill, Amandeep

doi:10.1109/tps.2018.2862391

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…K-shell and L-shell radiations of Ar ions have been observed from Ar z-pinch plasmas. [12][13][14][15][16][17] Soft X-ray in the region between the K absorption edge of the C atom (284 eV, 4.36 nm) and the K absorption edge of the O atom (543 eV, 2.28 nm) is more strongly absorbed by C than O atoms, and the organic matter appears to stand out in water. This is called the "water window".…”

Section: Introductionmentioning

confidence: 99%

Soft X-ray radiation from C₃H₈ and N₂ discharges in the divergent gas-puff z pinch

Takasugi¹,

Nishio²,

Watanabe³

2020

Jpn. J. Appl. Phys.

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The soft X-ray point radiation source in the “water window” was studied using a divergent gas-puff z pinch. C3H8 and N2 were used as discharge gases. C VI (3.373 nm) and C V (4.027 nm) were observed in the C3H8 discharge. Hot spots were observed using a soft X-ray CCD camera. The FWHM size of the hot spot in the C3H8 discharge was 120 μm in diameter and 460 μm in length. An m = 1 mode instability occurred in the N2 discharge. The hot spot was inclined from the central axis, and the FWHM size was 190 μm in diameter and 770 μm in length.

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Section: Introductionmentioning

confidence: 99%

Soft X-ray radiation from C₃H₈ and N₂ discharges in the divergent gas-puff z pinch

Takasugi¹,

Nishio²,

Watanabe³

2020

Jpn. J. Appl. Phys.

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Self-contraction process and hot spot formation in the SHOTGUN III-U divergent gas-puff Z pinch

Takasugi

Nishio

2020

Matter and Radiation at Extremes

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A divergent gas-puff Z pinch has been devised for the realization of an efficient soft x-ray point source. In this device, a divergent hollow annular gas puff is ejected outward from the surface of the inner electrode, and the plasma is compressed three-dimensionally to generate a soft x-ray point source. In the SHOTGUN III-U device at Nihon University, the power supply was enhanced, and experiments were conducted over a larger current range. The peak current at the charging voltage of −25 kV was −190 kA. Ar was used as the discharge gas. The self-contraction process of the plasma was investigated in detail using a gated camera. Near the peak current, local contraction occurred in front of the inner electrode. The contraction velocity of the plasma was 5.5 × 104 m/s. As the plasma contracted, the discharge current decreased. The energy input was analyzed by induction acceleration. The net input energy was found to be 750 J, which corresponded to 13.3% of the stored energy of the capacitor, 5630 J. The soft x-ray source was observed using a soft x-ray CCD camera. A point source was observed 7 mm in front of the inner electrode. The size of the source was 35 µm in the axial direction and 14 µm in the radial direction.

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Theoretical Study Of Gas-Puff and Laser Irradiated Gas Jet M-Shell Xenon Experiments Radiating Between 9-14Å

Gill

Safronova

Childers

et al. 2021

2021 IEEE International Conference on Plasma Science (ICOPS)

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Radiative Characteristics of Reversed Polarity Gas-Puff Ar and Kr Plasmas

Cited by 3 publications

References 11 publications

Soft X-ray radiation from C₃H₈ and N₂ discharges in the divergent gas-puff z pinch

Soft X-ray radiation from C₃H₈ and N₂ discharges in the divergent gas-puff z pinch

Self-contraction process and hot spot formation in the SHOTGUN III-U divergent gas-puff Z pinch

Theoretical Study Of Gas-Puff and Laser Irradiated Gas Jet M-Shell Xenon Experiments Radiating Between 9-14Å

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Radiative Characteristics of Reversed Polarity Gas-Puff Ar and Kr Plasmas

Cited by 3 publications

References 11 publications

Soft X-ray radiation from C3H8 and N2 discharges in the divergent gas-puff z pinch

Soft X-ray radiation from C3H8 and N2 discharges in the divergent gas-puff z pinch

Self-contraction process and hot spot formation in the SHOTGUN III-U divergent gas-puff Z pinch

Theoretical Study Of Gas-Puff and Laser Irradiated Gas Jet M-Shell Xenon Experiments Radiating Between 9-14Å

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Product

Resources

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Soft X-ray radiation from C₃H₈ and N₂ discharges in the divergent gas-puff z pinch

Soft X-ray radiation from C₃H₈ and N₂ discharges in the divergent gas-puff z pinch