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Burning voltage

Fig. 12. Amplitude noise spectra for a matrix line in glow discharge source (GDS) atomic emission spectrometry. Steel standard sample 218A (Research Institute CKD, Czech Republic) / 50 mA argon pressure 600 Pa burning voltage 900 V 0.35 m McPherson monochromator line Fe I 371.9 nm. (a) Without needle valve between the vacumm pump and the GDS, (b) with needle valve between the pump and the GDS. (Reprinted with permission from Ref. [40].)... Fig. 12. Amplitude noise spectra for a matrix line in glow discharge source (GDS) atomic emission spectrometry. Steel standard sample 218A (Research Institute CKD, Czech Republic) / 50 mA argon pressure 600 Pa burning voltage 900 V 0.35 m McPherson monochromator line Fe I 371.9 nm. (a) Without needle valve between the vacumm pump and the GDS, (b) with needle valve between the pump and the GDS. (Reprinted with permission from Ref. [40].)...
These were proposed in the 1970s for sample ablation use only [211]. Both the high voltage sparks, with mechanical or electronic interruption and a burning voltage of... [Pg.126]

Fig. 73. Electron microprobe (EPMA) line time 5 min gas flow 210 mL/min at 530 Pa scans (x-ray intensity in arbitrary units, versus argon pressure, burning voltage 1 kV current beam location) of burning spots of jet-assisted 58 mA. The scanned line is highlighted in Crimm-type glow discharge, (a) 0.5 mm jets white in the left-hand photograph. (Reprinted and (b) 0.2 mm jets sample brass sputtering with permission from Ref. [238].)... Fig. 73. Electron microprobe (EPMA) line time 5 min gas flow 210 mL/min at 530 Pa scans (x-ray intensity in arbitrary units, versus argon pressure, burning voltage 1 kV current beam location) of burning spots of jet-assisted 58 mA. The scanned line is highlighted in Crimm-type glow discharge, (a) 0.5 mm jets white in the left-hand photograph. (Reprinted and (b) 0.2 mm jets sample brass sputtering with permission from Ref. [238].)...
Electrical arc sources for atomic emission spectrometry use currents of between 5 and 30 A, and the burning voltage between two electrodes of different polarity in the case of an arc gap of a few mm then ranges between 20 and 60 V. Dc arcs can... [Pg.210]

The Grimm lamp has an abnormal characteristic, the current is selected to be at 40-200 mA and the burning voltage is usually below 1 kV. Both in krypton as well as in neon the burning voltage is higher than in argon, but it also depends on the... [Pg.244]

With flat as well as pin form cathodes the discharge is usually operated at about 1 mbar, a gas flow rate of a few mL/min and the current is about 2-5 mA with a burning voltage of 500-1500 V. [Pg.281]


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See also in sourсe #XX -- [ Pg.136 ]




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