منابع مشابه
Spectroscopic Characterisation of an Atmospheric Pressure Glow Discharge*
Recently there has been considerable interest in atmospheric discharges operating in a glow discharge mode i.e. with a spatial and sheath structure similar to that of low pressure glow discharges [1,2,3]. Here spectroscopy has been used to characterise an atmospheric pressure glow discharge (APGD), operating with either dry air, argon or helium gas flowing through the inter-electrode space and ...
متن کاملSpatial profiles of N2 concentration in an atmospheric pressure nitrogen glow discharge
Spatial profiles of N2 concentration are measured in an atmospheric pressure nitrogen glow discharge by cavity ring-down spectroscopy. At discharge currents of ∼100 mA, we measure centreline ion concentrations on the order of 1012 cm−3, and radial profiles with radial-half-maximum of ∼1 mm. The measurements have sub-ppm concentration sensitivity, and sub-millimetre spatial resolution. Using a c...
متن کاملAtmospheric-pressure ionization and fragmentation of peptides by solution-cathode glow discharge.
Modern "-omics" (e.g., proteomics, glycomics, metabolomics, etc.) analyses rely heavily on electrospray ionization and tandem mass spectrometry to determine the structural identity of target species. Unfortunately, these methods are limited to specialized mass spectrometry instrumentation. Here, a novel approach is described that enables ionization and controlled, tunable fragmentation of pepti...
متن کاملThe development of uniform atmospheric pressure glow discharges: appearance of stable glow discharge in air, argon, oxygen and nitrogen at atmospheric pressure using a 50 Hz source (S Okazaki et al 1993 J. Phys. D: Appl. Phys. 26 889)
The development of atmospheric pressure plasmas (APPs) for chemical synthesis, mat erials processing, environmental cleanup and now for biotechnology has been continually challenged by the desire, and the need, to produce uniform glow discharges. A scaling law in low temperature plasmas states that if ionization occurs only from the ground state, the gas density N is constant, and the E/N (ele...
متن کاملElectrical Characterization of Atmospheric Pressure Gaseous Discharge
This paper reports the generation of atmospheric pressure gaseous discharge and its electrical characterization. For this purpose, a point-plane electrode system has been fabricated. A high voltage power supply (0-11 kV, 50 Hz) was applied across the electrodes. Discharge was generated with and without the dielectric barrier between the electrodes. The gas discharge was seen as in-homogenous fi...
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: Journal of Science and Engineering
سال: 2012
ISSN: 2645-8519,2091-1475
DOI: 10.3126/jsce.v1i0.22490