Power supply system for negative ion source at IPR

Studies on the radio frequency power supply system for the ITER NB injector ion source

In the framework of the European activities on the ITER neutral beam (NB) injector, the design of a 1MHz, 1MW power supply (PS) system for the radio frequency (RF) driven ion source, has been developed in cooperation between IPP and RFX laboratories. This paper describes the studies performed with particular emphasis on the system design, the definition of the best modularity level to be adopte...

An Automatic Real Time Impedance Matching System for Use in an RF Electrostatics Accelerator Ion Source

A pulsed sputter negative ion source

2014 A pulsed source for Cs-ions has been constructed as part of a sputter ion source in Hortig geometry. A beam of Cs-ions is extracted from a tungsten surface ionizer and bunched into pulses a few ns wide by a combination of velocity and path-of-flight modulation. It is expected that such a beam will produce intense pulses of negative ions having pulse widths in the ns range. REVUE DE PHYSIQU...

Low - power magnetized microdischarge ion source

The authors report on the design and operation of a magnetized microdischarge ion source. The discharge is a coaxial E B configuration with a closed-electron drift. Conditions are selected such that the ions are nonmagnetized and the electrons strongly magnetized. The operating characteristics of this ion source are studied in the 10–40 W power range, generating a total ion current as high as 0...

Gas Flow Influence on Negative Hydrogen Ion Generation within the Microwave-driven Negative Ion Source*

H ion was generated through two processes within a volume Csfree source. The density of molecule hydrogen gas will impact on the electron temperature within the primary discharge chamber that will influence the population of vibrational excited H2. Within the extraction region, the interaction between molecule hydrogen and H ion will is cause the dissociation of negative ion. To better understa...