Spectroscopic measurements on an H/sup -/ ion source discharge

Conference · Tue Oct 01 04:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6077421

Keller, R; Smith, H V

Spectral emission lines from an H/sup -/ Penning surfaceplasma source (SPS), the 4X source, are examined in the visible and near ultraviolet. Electron distribution temperatures are deduced from integral line-strength measurements. These temperatures are surprisingly low, about 0.5 eV. Electron density values of about 1.5 x 10/sup 14/cm/sup -3/ and H-atom energies between 2 and 2.6 e are determined from the measured Balmer-line profiles. Assuming the H/sup -/ energy is identical to the H-atom energy, an emittance limit of 0.006..pi.. X cm X mrad is deduced for this source with a 5.4-mm aperture.

• Research Organization: Los Alamos National Laboratory, Los Alamos, NM
• OSTI ID: 6077421
• Report Number(s): CONF-850504-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-32:5
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430301* -- Particle Accelerators-- Ion Sources
ANIONS
BEAM DYNAMICS
BEAM EMITTANCE
BEAMS
CHARGED PARTICLES
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRON SPECTROSCOPY
ELECTRON TEMPERATURE
EMISSION SPECTRA
HYDROGEN 1 MINUS BEAMS
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
ION BEAMS
ION SOURCES
IONS
NEAR ULTRAVIOLET RADIATION
PENNING ION SOURCES
RADIATIONS
SPECTRA
SPECTROSCOPY
ULTRAVIOLET RADIATION
VISIBLE RADIATION