RUPAC2012 - List of Authors (Dudnikov, V.G.)

Paper

Title

Page

Progress in the Negative Ion Sources Development

213

V.G. Dudnikov
Muons, Inc, Batavia, USA

Modern trends and recent progress in development of negative ion sources will be considered and analyzed. Surface Plasma Sources (SPS) rely on cesium-enhanced plasma surface reactions to produce negative ions are main sources delivering the negative ion beam for charge exchange injection in accelerators and fusion devices. After development of the SPS with cesiation the negative ion beam intensity has increased up to ~10⁴ times, from a record 3 mA to more than 40 A. Since the original conception of SPS with cesiation, many modifications and improvements have been made such that they constitute a mature and reliable technology today. The world-wide effort on the development and use of SPS with cesiation has increased to more than a thousand highly qualified scientists, engineers, technicians, workers, and administrators. The cost scale of advanced SPS has increased from ~ k to ~ M. SPS with cesiation have become "sources of life" and "working horses" for big installations such as SNS, LANSCE, BNL, FNAL, ISIS, KEK, JT 60 (Japanese tokamak), and the LHD (Large Helicon Device). Large development projects include the SPS for the Large Hadron Collider (LHC) and for the International Thermonuclear Experimental Reactor (ITER). The development and fabrication of injectors with cesiated SPS has become a billion dollar scale industry.

Slides FRBOR01 [8.083 MB]

TUPPB058

Improving Efficiency of Plasma Generation in H⁻ Ion Source with Saddle Antenna

439

V.G. Dudnikov, R.P. Johnson
Muons, Inc, Batavia, USA
S.N. Murray, T.R. Pennisi, M.F. Piller, M. Santana, M.P. Stockli, R.F. Welton
ORNL, Oak Ridge, Tennessee, USA

Funding: Work supported in part by US DOE Contract DE-AC05-00OR22725 and by STTR grant DE-SC0002690.
Progress in development of RF ion source with saddle radio frequency (SA) (RF) antenna which will provide better power efficiency for high pulsed and average current, higher brightness with longer lifetime and higher reliability is considered. Several versions of new plasma generators with different antennas and magnetic field configurations were tested in the Test Stand. The efficiency of positive ion plasma generation has been improved ~4x times up to 0.18 A/cm² per 1 kW of RF power 13.56 MHz. A new version of the RF assisted triggering plasma source (TPS) has been designed, fabricated and tested. A Saddle antenna SPS with water cooling is being fabricated for high duty factor have been tested.

Paper	Title	Page
FRBOR01	Progress in the Negative Ion Sources Development	213
	V.G. Dudnikov Muons, Inc, Batavia, USA
	Modern trends and recent progress in development of negative ion sources will be considered and analyzed. Surface Plasma Sources (SPS) rely on cesium-enhanced plasma surface reactions to produce negative ions are main sources delivering the negative ion beam for charge exchange injection in accelerators and fusion devices. After development of the SPS with cesiation the negative ion beam intensity has increased up to ~10⁴ times, from a record 3 mA to more than 40 A. Since the original conception of SPS with cesiation, many modifications and improvements have been made such that they constitute a mature and reliable technology today. The world-wide effort on the development and use of SPS with cesiation has increased to more than a thousand highly qualified scientists, engineers, technicians, workers, and administrators. The cost scale of advanced SPS has increased from ~ k to ~ M. SPS with cesiation have become "sources of life" and "working horses" for big installations such as SNS, LANSCE, BNL, FNAL, ISIS, KEK, JT 60 (Japanese tokamak), and the LHD (Large Helicon Device). Large development projects include the SPS for the Large Hadron Collider (LHC) and for the International Thermonuclear Experimental Reactor (ITER). The development and fabrication of injectors with cesiated SPS has become a billion dollar scale industry.
	Slides FRBOR01 [8.083 MB]

TUPPB058	Improving Efficiency of Plasma Generation in H⁻ Ion Source with Saddle Antenna	439
	V.G. Dudnikov, R.P. Johnson Muons, Inc, Batavia, USA S.N. Murray, T.R. Pennisi, M.F. Piller, M. Santana, M.P. Stockli, R.F. Welton ORNL, Oak Ridge, Tennessee, USA
	Funding: Work supported in part by US DOE Contract DE-AC05-00OR22725 and by STTR grant DE-SC0002690. Progress in development of RF ion source with saddle radio frequency (SA) (RF) antenna which will provide better power efficiency for high pulsed and average current, higher brightness with longer lifetime and higher reliability is considered. Several versions of new plasma generators with different antennas and magnetic field configurations were tested in the Test Stand. The efficiency of positive ion plasma generation has been improved ~4x times up to 0.18 A/cm² per 1 kW of RF power 13.56 MHz. A new version of the RF assisted triggering plasma source (TPS) has been designed, fabricated and tested. A Saddle antenna SPS with water cooling is being fabricated for high duty factor have been tested.