The relationship between visible light emission and species fraction of the hydrogen ion beams extracted from 2.45 GHz microwave discharge
Cortázar, O. D., Megía-Macías, A., Tarvainen, O., Kalvas, T., & Koivisto, H. (2015). The relationship between visible light emission and species fraction of the hydrogen ion beams extracted from 2.45 GHz microwave discharge. Review of Scientific Instruments, 86 (8), 083309. doi:10.1063/1.4928475
Published in
Review of Scientific InstrumentsDate
2015Copyright
© 2015 AIP Publishing LLC. Published in this repository with the kind permission of the publisher.
The relationship between Balmer-α and Fulcher-band emissions with extracted H
+
, H
+
2
, and H
+
3
ions
is demonstrated for a 2.45 GHz microwave discharge. Ion mass spectra and optical measurements of
Balmer-α and Fulcher-band emissions have been obtained with a Wien Filter having an optical viewport
on the plasma chamber axis. The beam of approximately 1 mA is analyzed for different plasma
conditions simultaneously with the measurement of light emissions both with temporal resolution.
The use of visible light emissions as a valuable diagnostic tool for monitoring the species fraction of
the extracted beams is proposed.