Conveners
12th session
- Byungkeun Na (National Fusion Research Institute)
Mr
Pranjal Singh
(Institute for Plasma Research)
06/09/2018, 11:00
Fundamental processes and modelling
Oral
It has been experimentally proven that adsorption of alkali metals like Caesium (Cs) on tungsten reduces tungsten’s effective work function. The work function of pure W surface is 4.55eV and that of pure Cs is 2.14 eV [1]; however with fractional monolayer (0.6 – 0.7) of Cs coverage on W surface makes the effective work-function of the W surface as low as 1.5eV [2]. It is well known from...
Glynnis Mae Saquilayan
(National Institutes for Quantum and Radiological Science and Technology)
06/09/2018, 11:30
H– and D– sources for fusion, accelerators and other applications
Oral
The development of a high power negative ion beam accelerator is one of the key aspects in the neutral beam injection system (NBI) for fusion reactors. For example, the ITER NBI requires 1 MeV deuterium negative ion (D-) beams with a current density of 200 A/m2 and a divergence angle of < 7 mrad. Such high power beam accelerations have been demonstrated in a MeV test...
Mr
Yasuaki HABA
(Nagoya University / National Institute for Fusion Science)
06/09/2018, 12:00
H– and D– sources for fusion, accelerators and other applications
Oral
Development of negative ion sources and development of the accelerator of negative ion beams are of crucial importance for nuclear fusion research. In order to evaluate beam optics, and to investigate the characteristics of meniscus formed between negative ion beam region and plasma region, detaild measurement of beam property is required. Therefore, we have developed a new beamlet monitor...
