Advanced Laser Diagnostics for Electron Density Measurements
نویسندگان
چکیده
منابع مشابه
Wavefront-sensor-based electron density measurements for laser-plasma accelerators.
Characterization of the electron density in laser produced plasmas is presented using direct wavefront analysis of a probe laser beam. The performance of a laser-driven plasma-wakefield accelerator depends on the plasma wavelength and hence on the electron density. Density measurements using a conventional folded-wave interferometer and using a commercial wavefront sensor are compared for diffe...
متن کاملDiagnostics for Electron Cloud Measurements in CESR
Clouds of low energy electrons frequently build up within the beam chambers of particle accelerators. In many cases, electron cloud effects (ECEs) cause beam instabilities and degradation of performance. This is of particular concern for high intensity positron rings, in which ECEs can lead to emittance blow-up. Understanding and mitigating electron cloud build up is thus of particular importan...
متن کاملAdvanced Laser Spectroscopy in Combustion Diagnostics
In recent years, a large number of linear and nonlinear laser-based diagnostic techniques for non-intrusive measurements of species concentrations, temperatures, and gas velocities in a wide pressure and temperature range with high temporal and spatial resolution were developed and have become extremely valuable tools to study many aspects of combustion. Nonlinear laser spectroscopic techniques...
متن کاملSingle-pass High-gain Free Electron Laser Electron Beam Diagnostics
Consensus reached in the last few years that fourth generation light source will most likely be a X-ray or a UV coherent source based on single-pass high-gain free electron laser (FEL), such as Self Amplified Spontaneous Emission (SASE), or seeded high-gain harmonic -generation (HGHG) free electron lasers. High -gain (> 10) required for single-pass FEL puts great constrain on the quality of ele...
متن کاملA Reexamination of Electron Density Diagnostics for Ionized Gaseous Nebulae
We present a comparison of electron densities derived from optical forbidden line diagnostic ratios for a sample of over a hundred nebulae. We consider four density indicators, the [O ii] λ3729/λ3726, [S ii] λ6716/λ6731, [Cl iii] λ5517/λ5537 and [Ar iv] λ4711/λ4740 doublet ratios. Except for a few H ii regions for which data from the literature were used, diagnostic line ratios were derived fro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plasma and Fusion Research
سال: 2007
ISSN: 1880-6821
DOI: 10.1585/pfr.2.s1027