Published December 29, 1986
| Version v1
Journal article
Measured densities and rotational temperatures of metastable H2 in a multicusp ion source
- 1. Association EURATOM-FOM, FOM-Institute for Atomic and Molecular Physics, NL-1098 SJ Amsterdam, The Netherlands
Description
We report the first successful application of resonant multiphoton ionization to the diagnosis of a discharge. This technique is used to measure rotational temperatures of H2 in the metastable c 3Pi/sub u/- state, which are in the range of 400 to 600 K. The density of these molecules is determined by a single-photon ionization process, yielding a value of 3 x 109 cm/sup -3/ at a discharge current of 30 A. The relevance of these metastable molecules to H- production in hydrogen discharges is discussed
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 57
- Journal Issue
- 26
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 3265-3268
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 18053469
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DENSITY; ELECTRIC DISCHARGES; EXPERIMENTAL DATA; HIGH TEMPERATURE; HYDROGEN; HYDROGEN IONS 1 MINUS; METASTABLE STATES; MULTI-PHOTON PROCESSES; PHOTOIONIZATION; RESONANCE ABSORPTION; ROTATIONAL STATES; TEMPERATURE MEASUREMENT
- Descriptors DEC
- ABSORPTION; ANIONS; CHARGED PARTICLES; DATA; ELEMENTS; ENERGY LEVELS; EXCITED STATES; HYDROGEN IONS; INFORMATION; IONIZATION; IONS; NONMETALS; NUMERICAL DATA; PHYSICAL PROPERTIES