Plasma Diagnostics

Kunze, H.

doi:10.1007/11360360_13

Cited by 14 publications

(11 citation statements)

References 18 publications

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“…This wavelength (1064 nm) is chosen to maximize a while still permitting the use of optical detection systems with excellent signal/noise specifications. The wavelength is also chosen such that laser plasma heating due to inverse Bremsstrahlung (proportional to wavelength to the second power 22 ) is negligible. The CTS (1064 nm) laser beam is coupled into the incoherent laser beam line by using a dichroic mirror (transmission for 532 nm and 90 reflection for 1064 nm), allowing for simultaneous TS and CTS measurements.…”

Section: -21mentioning

confidence: 99%

Collective Thomson scattering system for determination of ion properties in a high flux plasma beam

Meiden

Vernimmen

Bystrov

et al. 2016

Applied Physics Letters

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A collective Thomson scattering system has been developed for measuring ion temperature, plasma velocity and impurity concentration in the high density magnetized Magnum-PSI plasma beam, allowing for measurements at low temperature (<5 eV) and high electron density >4 × 1020 m−3, while avoiding laser plasma heating caused by inverse Bremsstrahlung. The collective Thomson scattering system is based on the fundamental mode of a seeded Nd:YAG laser and equipped with an LIVAR M506 camera (EBABS technology). The first collective Thomson scattering measurements are taken at the linear plasma generator Pilot-PSI, 40 mm downstream of the cascaded arc source. At this location, the ion temperature is about equal to the electron temperature in the bulk of the plasma beam.

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Section: -21mentioning

confidence: 99%

Collective Thomson scattering system for determination of ion properties in a high flux plasma beam

Meiden

Vernimmen

Bystrov

et al. 2016

Applied Physics Letters

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“…At 1064 nm a was close to 1 or higher for the plasma conditions of interest, while still permitting the use of optical detection systems with excellent signal to noise specifications. The wavelength is also chosen such that laser plasma heating due to inverse Bremsstrahlung (for T e [ 1 eV proportional to wavelength to the second power [22]) is negligible.…”

Section: Cts In Pilot-psimentioning

confidence: 99%

Incoherent and Collective Thomson Scattering for the Determination of Electron and Ion Properties in Low-Temperature Plasma

et al. 2020

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“…Since diagnosing a type of plasma is a fundamental process designed to find out the plasma parameters, it is clear, that numerous different diagnostics with similar or identical methods are applied in quite different plasma regimes. Examples for similar diagnosis techniques are Langmuir probe measurements, optical emission, absorption spectroscopy, and laser‐induced diagnostics, for example the so‐called laser‐induced fluorescence (LIF) 30–33. Langmuir probe measurements are applied to determine the plasma parameters, mainly the electron energy distribution function in low temperature and boundary plasmas, while optical emission and absorption spectroscopy may be applied for both low and high temperature plasmas, due to its vanishing interference with the plasma.…”

Section: Similarities In Specific Developments Of Plasma Diagnosticsmentioning

confidence: 99%

Similarities and Particularities of Low‐ and High‐Temperature Plasma Technologies

Schumacher¹

2007

Plasma Processes & Polymers

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Although plasmas cover an enormously wide range of parameters, and although the technologies and their applications differ strongly, several general mechanisms and technological processes, such as dimensionless parameters, generation and controlling of plasmas by particle wave interactions, plasma‐wall‐interactions, surface engineering and diagnostics are quite similar. Microwave technology offers both low temperature plasma applications and plasma heating for the fusion reactors. The interaction of plasmas with the nearby surfaces and the resulting material changes follow the same general mechanisms in low, as well as in high temperature plasmas, and their diagnostics are similar.

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Plasma Diagnostics

Cited by 14 publications

References 18 publications

Collective Thomson scattering system for determination of ion properties in a high flux plasma beam

Collective Thomson scattering system for determination of ion properties in a high flux plasma beam

Incoherent and Collective Thomson Scattering for the Determination of Electron and Ion Properties in Low-Temperature Plasma

Similarities and Particularities of Low‐ and High‐Temperature Plasma Technologies

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