10th International symposium on Negative Ions, Beams and Sources - NIBS'26

Session

S1: Chairperson - Dirk Wunderlich, IPP-MPG

Sep 24, 2026, 8:10 AM

Conference Room (Prestige Lakeside Resort Nelson)

63. Negative Ion Source Developments at the ITER-NBTF in Padua towards the start of MITICA-HNB Operation

Diego Marcuzzi (Consorzio RFX)

9/24/26, 8:10 AM

Invited

The ITER Neutral Beam Injection Heating and Current Drive system consists of 2 (upgradable to 3) Heating Neutral Beams (HNB) and 1 Diagnostic Neutral Beam (DNB).
A HNB system capable of these parameters had never been designed nor tested, hence the ITER Neutral Beam Test Facility (NBTF) was set up at Consorzio RFX premises (Italy) aimed at developing the injector prototype.
The facility...

65. Stabilization of Long Beam Pulses at NNBI

Christian Wimmer (Max-Planck-Institut für Plasmaphysik (IPP))

9/24/26, 8:35 AM

Invited

The Neutral Beam Injection (NNBI) for ITER is based on large-scale RF plasma sources for negative hydrogen ions, which need to deliver high currents of H$^-$ and D$^-$ (up to 66 A) for up to one hour while maintaining the co-extracted current of electrons below the ion current. Cesium is used to enable the surface production of negative ions; however, the plasma-induced removal of Cs from the...

95. Experimental Investigation of Power Deposition Characteristics and Neutralization Efficiency in CRAFT NNBI Test Facility

旭峰 彭 (合肥综合性国家科学中心能源研究院)

9/24/26, 9:00 AM

Contributed Oral

Neutral beam injection (NBI) is one of the most important auxiliary heating and current drive methods for future fusion devices. In negative ion-based neutral beam injection (NNBI) systems, understanding beam power deposition and neutralization characteristics is essential for improving beam transmission efficiency and ensuring reliable long-pulse operation. In this work, a high-power neutral...

94. Neutral Beam Injectors for ITER, Progress of Design and Manufacturing Activities

Carlo Poggi (ITER Organization)

9/24/26, 9:20 AM

Invited

The ITER tokamak will rely on negative ion–based Neutral Beam Injectors (NBIs) for auxiliary heating and current drive, as well as for high resolution spectroscopic diagnostics of burning plasmas. The heating system comprises two, with an option for a third, Neutral Beam Injectors capable of delivering 16.5 MW of MeV class neutral hydrogen or deuterium atoms, while a dedicated Diagnostic...