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A system of initial control for anode emission in a d.c. arc

✍ Scribed by H.J. Philcox

Publisher
Elsevier Science
Year
1959
Weight
414 KB
Volume
15
Category
Article
ISSN
0371-1951

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✦ Synopsis

A system ensuring the initial stability of conditions for the emission spectra of plant ash is achieved by the use of a carbon cathode and a graphite anode in an oxygen atmosphere. The selected shape of the graphite anode located on a water-cooled base partially controls the volatilization rate of %he substance. The application of oxygen surrounding the electrode prevent& arc wandering, and minimizes the effects of the initial differences in the thermal conductivities of the carbon and graphite. Standard density of packing of the material in the anode together with lithium sulphate as a spectrdscopic buffer assists stability of the arc discharge.

Intl!odllction

πŸ“œ SIMILAR VOLUMES

A comparison of cathode and anode excita
A comparison of cathode and anode excitation in the d.c. arc
✍ R.R. Brooks; C.R. Boswell πŸ“‚ Article πŸ“… 1965 πŸ› Elsevier Science 🌐 English βš– 631 KB

IZeforc the intr~)du~tion of cathode-layer cxcitntion in the D.C. arcI, anode excitation was the usual tf2i:tinicpe in spcctrochernicnl analysis. Although the use of ancJdC! cscitation derlincd s<>mc\vhi~t following the discovery of the cathode-layer effect, it has been more widely usctf in recent y