The kinetics of negative hydrogen ions in discharges
β Scribed by Graham, W G
- Book ID
- 120221918
- Publisher
- Institute of Physics
- Year
- 1995
- Tongue
- English
- Weight
- 767 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0963-0252
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The negative oxygen ion density is studied experimentally in the highβdensity helicon device VINETA by laserinduced photodetachment. The measurements indicate a negative ion density being higher than the electron density in contrast to previous experiments in helicon oxygen discharges.
With the aid of rf, microwave and dc discharges, an optogalvanic (OG) signal, due to the photodetachment of negative oxygen ions, has been observed. The OG signal intensity in an rf discharge was successfully estimated from the discharge parameters. Thus, the OG technique may be potentially useful a