Spectroscopic investigation of H/sup -/ and D/sup -/ ion source plasmas

Conference · Wed Oct 01 04:00:00 EDT 1986

OSTI ID:6835200

Smith, Jr, H V; Allison, P; Keller, R

Several H I (Balmer), Cs I, Cs II, and Mo I lines emitted by the small-angle source and 4X source plasmas are studied. After correcting for Stark broadening, the H/sub ..cap alpha../ line width gives the H-atom temperature kT/sub H/o. After correcting for Doppler broadening, the H/sub ..beta../ and H/sub delta/ line widths give the electron density n/sub e/. For pulsed operation of both sources, kT/sub H/o is 1.5 to 2 eV and n/sub e/ is 1 to 2 x 10/sup 14//cm/sup 3/, with kT/sub H/o and n/sub e/ scaling approximately with the square root of the discharge current. For the 4X source operated on D/sub 2/, kT/sub D/o and n/sub e/ are near the values of kT/sub H/o and n/sub e/ obtained for H/sub 2/ operation. Assuming that the H/sup -//D/sup -/ ion temperature equals the H/D-atom temperature, we deduce a lower limit to the H/sup -//D/sup -/ beam emittance.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6835200
• Report Number(s): LA-UR-86-3863; CONF-8610115-18; ON: DE87005130
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430301* -- Particle Accelerators-- Ion Sources
ALKALI METALS
ANIONS
BALMER LINES
CESIUM
CHARGED PARTICLES
DEUTERIUM IONS
ELECTRON DENSITY
ELEMENTS
EMISSION SPECTRA
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
ION SOURCES
IONS
METALS
MOLYBDENUM
PLASMA
SPECTRA
TRANSITION ELEMENTS