Observation of Electron Density Rollover in Hydrogen Plasma Produced with DT-ALPHA Device
نویسندگان
چکیده
The rollover of electron density, a common indicator for the onset volumetric recombination, was observed in hydrogen plasma, first time DT-ALPHA. Electron density and temperature were measured near plasma production region secondary gas feeding position with various conditions regarding amount gas. A at position, whereas remained nearly constant. This behavior indicates an enhancement molecular-activated recombination.
منابع مشابه
Observation of vertical electron density profile in inospheric E-layer during Indian-Ocean earthquake on December 2004 using CHAMP satellite
This paper describes the observation and analysis of vertical electron density before major earthquake above the Sumatra-Malaysia region during Indian Ocean major earthquake in 2004 in Aceh, Sumatra. The electron density profile in E-layer of ionosphere a few days before earthquake and a few hours after earthquake have been observed using the data from the CHAMP satellite. The data obtained fro...
متن کاملElectron density and temperature measurements in a laser produced carbon plasma
Plasma generated by fundamental radiation from a Nd:YAG laser focused onto a graphite target is studied spectroscopically. Measured line profiles of several ionic species were used to infer electron temperature and density at several sections located in front of the target surface. Line intensities of successive ionization states of carbon were used for electron temperature calculations. Stark ...
متن کاملDevelopment of a high dynamic range spectroscopic system for observation of neutral hydrogen atom density distribution in Large Helical Device core plasma.
We report development of a high dynamic range spectroscopic system comprising a spectrometer with 30% throughput and a camera with a low-noise fast-readout complementary metal-oxide semiconductor sensor. The system achieves a 10(6) dynamic range (∼20 bit resolution) and an instrumental function approximated by a Voigt profile with Gauss and Lorentz widths of 31 and 0.31 pm, respectively, for 65...
متن کاملFirst-Principles Investigation of Density of States and Electron Density in Wurtzite In0.5Ga0.5 N Alloys with GGA-PBEsol Method
In present work, we have calculated the electronic properties including density of states and electron density for GaN, InN and InxGa1-xN in wurtzite phase for x=0.5. The study is based on density functional theory with full potential linearized augmented plane wave method by generalized gradient approximation for calculating electronic properties. In this report we concluded that InxGa1-xN ba...
متن کاملOptically Thin Hydrogen Plasma with Self-Consistent Electron Velocity Distribution
couplings in radical I could not be determined exactly, it is possible to conclude that they do not differ for more than 4 gauss. Using 5 ^ 5 0 gauss and assuming that the angle H(i)C(6)H(5) remains approximately the same as in the undamaged molecule ( 1 0 8 ° ) , one finds that the angles <Pt and c o r " responding to the C(6) — H(d and C(6) — H(9) bonds, respectively, do not differ by more th...
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: 2022
ISSN: ['1880-6821']
DOI: https://doi.org/10.1585/pfr.17.1201082