Time-resolved and multiple-angle Thomson scattering on gas-puff Z-Pinch plasmas at pinch time

Magnetic field measurements in turbulent plasmas are often difficult to perform. Here we show that for ${\geqslant}$kG magnetic fields, a time-resolved Faraday rotation measurement can be made at the OMEGA laser facility. This diagnostic has been implemented using the Thomson scattering probe beam and the resultant path-integrated magnetic field has been compared with that of proton radiography. Accurate measurement of magnetic fields is essential for satisfying the scientific goals of many current laser–plasma experiments.

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Time-resolved K-shell line spectra measurement of z-pinch plasmas

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/j.nima.2013.07.025 ◽

2013 ◽

Vol 729 ◽

pp. 322-326 ◽

Cited By ~ 1

Author(s):

Qingguo Yang ◽

Shaotong Zhou ◽

Guanhua Chen ◽

Xianbin Huang ◽

Hongchun Cai ◽

...

Keyword(s):

Time Resolved ◽

Z Pinch

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Soft X-ray lasing at 519.7 Å in a Recombining Z-pinch Plasma

Laser and Particle Beams ◽

10.1017/s0263034600011162 ◽

1997 ◽

Vol 15 (4) ◽

pp. 589-595 ◽

Cited By ~ 6

Author(s):

E. Eberl ◽

T. Wagner ◽

J. Jacoby ◽

A. Tauschwitz ◽

D.H.H. Hoffmann

Keyword(s):

Discharge Current ◽

Line Intensity ◽

Gas Pressure ◽

Time Resolved ◽

X Ray ◽

Pinch Plasma ◽

Gain Length ◽

Z Pinch ◽

Time Resolved Measurements

This paper is reviewing the amplification of XUV radiation at 519.7 and 498.5 Å with a gain-length product of 2.5 and 2.2 for the 4f-3d and 4d-3p transition in an oxygen Z-pinch plasma. Time resolved measurements of the O VI (519.7 Å) transition were performed and the dependence of the line intensity on the discharge current and initial gas pressure is reported.

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Space and time resolved electron density and current measurements in a dense plasma focus Z-pinch

IEEE Transactions on Plasma Science ◽

10.1109/27.725142 ◽

1998 ◽

Vol 26 (4) ◽

pp. 1127-1137 ◽

Cited By ~ 28

Author(s):

Niansheng Qi ◽

S.F. Fulghum ◽

R.R. Prasad ◽

M. Krishnan

Keyword(s):

Electron Density ◽

Plasma Focus ◽

Dense Plasma ◽

Dense Plasma Focus ◽

Time Resolved ◽

Space And Time ◽

Z Pinch

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Time‐resolved x‐ray crystal spectrometer for multiterawatt Z‐pinch spectroscopy

Review of Scientific Instruments ◽

10.1063/1.1141836 ◽

1990 ◽

Vol 61 (10) ◽

pp. 2804-2806 ◽

Cited By ~ 10

Author(s):

T. Nash ◽

C. Deeney ◽

P. D. LePell ◽

R. Prasad ◽

M. Krishnan

Keyword(s):

Crystal Spectrometer ◽

Time Resolved ◽

X Ray ◽

Z Pinch

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Time-resolved energy measurement of electron beams in fiber Z-pinch discharges

Physics of Plasmas ◽

10.1063/1.872107 ◽

1997 ◽

Vol 4 (2) ◽

pp. 490-492 ◽

Cited By ~ 16

Author(s):

A. Robledo ◽

I. H. Mitchell ◽

R. Aliaga-Rossel ◽

J. P. Chittenden ◽

A. E. Dangor ◽

...

Keyword(s):

Electron Beams ◽

Energy Measurement ◽

Time Resolved ◽

Z Pinch

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Spectral Line Intensities for Δ N = 0 (L-Shell) Transitions of N, O, and F-Like Ions

International Astronomical Union Colloquium ◽

10.1017/s0252921100085894 ◽

1984 ◽

Vol 86 ◽

pp. 258-261

Author(s):

Y.T. Lee ◽

K. Reed

Keyword(s):

High Temperature ◽

Spectral Line ◽

Wavelength Range ◽

Argon Plasma ◽

Rate Coefficients ◽

Time Resolved ◽

High Power Lasers ◽

Line Intensities ◽

Radiation Spectra ◽

Z Pinch

Many laboratories are actively investigating radiation spectra emitted from high temperature/high density plasmas produced using gas-puff Z-pinch machines and high power lasers. Spectral-line intensities from these plasmas can be useful temperature and density diagnostics. In a well-diagnosed plasma, information on the emission spectrum can also be used to test the accuracy of theoretical rate coefficients.Recently time-resolved spectra from an oxygen-like argon plasma produced in a gas-puff z-pinch were measured in the wavelength range 150–200 Å . Over this wavelength range the spectrum contains mostly the Δn = 0 (L-shell) transitions in ArX-ArXIV and some weak transitions for n = 3 to n = 4 of ArVI-ArVIII. The measured spectra show the predominance of 0-like Ar L-shell transitions.

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Pulsed-power-generated plasma of high reproducibility

Laser and Particle Beams ◽

10.1017/s0263034600009022 ◽

1990 ◽

Vol 8 (4) ◽

pp. 595-608 ◽

Cited By ~ 10

Author(s):

H. Kunze ◽

R. Noll ◽

C. R. Haas ◽

M. Elfers ◽

J. Hertzberg ◽

...

Keyword(s):

Electron Density ◽

Ion Beam ◽

Pulsed Power ◽

High Reproducibility ◽

Time Resolved ◽

Beam Plasma ◽

Plasma State ◽

Average Electron ◽

Z Pinch ◽

Better Than

Plasmas of high reproducibility that are suitable for beam-plasma experiments are generated by a pulsed-power z-pinch discharge. The z-pinch device is designed as a plasma target for the investigation of ion beam-plasma interactions. The dynamic plasma state is characterized by the electron density, the electron temperature, and the magnetic field distribution, which are observed using time-resolved diagnostics. For z-pinch discharges in hydrogen, average electron densities of up to (2.6 ± 0.1) × 1018 electrons/cm3 were measured interferometrically. Electron temperatures in the range 2–7 eV are determined by time-resolved spectroscopy. The reproducibility of the electron density of the z-pinch discharge in terms of shot-to-shot fluctuations is estimated to be better than 3%. This is a favorable condition for performing beam-plasma experiments.

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Velocity and temperature measurements of Z pinch plasmas using optical Thomson scattering

2012 Abstracts IEEE International Conference on Plasma Science ◽

10.1109/plasma.2012.6383645 ◽

2012 ◽

Author(s):

A. J. Harvey-Thompson ◽

S. V. Lebedev ◽

S. Patankar ◽

R. Smith ◽

H. Doyle ◽

...

Keyword(s):

Thomson Scattering ◽

Temperature Measurements ◽

Z Pinch

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