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 inReview of Scientific Instruments
© 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.