Radial geometry cesium plasma source with improved mechanical features

Conference · Tue Jan 01 00:00:00 EST 1985

OSTI ID:5488004

Alton, G D; Beckers, R M; Johnson, J W

An improved version of the radial geometry cesium plasma negative ion source, described by Alton and Blazey, has been designed, evaluated and employed for use during routine operation of the Holifield Heavy Ion Research Facility (HHIRF) tandem accelerator. The mechanical features of the source have been improved to facilitate rapid change of degradable parts such as the sputter probe insulator and cathodes and to provide better thermal isolation of the externally mounted oven from the discharge chamber. The source has demonstrated improved operational stability, higher intensities and increased reliability over its predecessor. Negative ion beams from more than twenty-five elements have been provided for the HHIRF experimental program including several molecular hydride beams from difficult elements such as Be, Mg, Ti, Sc, Nd and Zr. A detailed description of the mechanical features of the source as well as the negative ion yield dependence on certain operational parameters are presented. 9 refs., 5 figs., 1 tab.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5488004
• Report Number(s): CONF-850470-1; ON: DE85013634
• Resource Relation: Conference: 4. international conference on electrostatic accelerator technology and associated boosters, Buenos Aires, Argentina, 15 Apr 1985
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BERYLLIUM IONS
ION SOURCES
PERFORMANCE
SPUTTERING
MAGNESIUM IONS
NEODYMIUM IONS
SCANDIUM IONS
TITANIUM IONS
ZIRCONIUM IONS
ANIONS
BEAM CURRENTS
BEAM EXTRACTION
CESIUM
HEAVY IONS
HHIRF ACCELERATOR
SPECIFICATIONS
STABILITY
ACCELERATORS
ALKALI METALS
CHARGED PARTICLES
CURRENTS
ELEMENTS
HEAVY ION ACCELERATORS
IONS
METALS
430301* - Particle Accelerators- Ion Sources