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

Session

S3: Chairperson - Dan Faircloth, STFC UKRI

Sep 24, 2026, 1:30 PM

Conference Room (Prestige Lakeside Resort Nelson)

82. An Expanded Survey of H-/D- Injectors at National Laboratories: Ion sources, LEBTs and RFQs

Robert Welton (ORNL-SNS)

9/24/26, 1:30 PM

Invited

Modern low-energy H-/D- injectors are used extensively in many large, accelerator-based, user facilities operating worldwide. Beams of these ions are used to fill circular accelerators and storage rings, to enable efficient extraction from cyclotrons and to double proton energy output from a tandem accelerator. The injector consists of an ion source, a Low Energy Beam Transport (LEBT)...

96. Modeling of Beam Focusing with Radio Frequency Electric Field Perturbations

Tsuyoshi Yasui (Nagoya University,Japan)

9/24/26, 1:55 PM

Contributed Oral

A critical issue in the development of radio frequency (RF) negative ion sources for ITER neutral beam injection (NBI) is the large beam divergence angle. One of the potential causes is the deformation of the beam extraction interface (meniscus) induced by the RF electric field. Previous work showed that the applied RF electric field near the meniscus triggered both oscillations and an...

28. Current status of Proton and Neutron irradiation beamlines at the RFT-30 H⁻ Cyclotron Facility

Jongchul Lee (Korea Atomic Energy Research Institute)

9/24/26, 2:15 PM

Contributed Oral

The RFT-30 cyclotron facility provides a 30 MeV proton beam for radioisotope production and irradiation experiments using H⁻ ion acceleration with stripping extraction. The facility is being upgraded to expand its capability for proton and neutron irradiation studies.
The RFT-30 cyclotron employs a negative hydrogen ion source and a low-energy beam transport (LEBT) system for beam injection...

160. Neutral Beam Roadmap at Realta Fusion

Anthony Cooper (Realta Fusion)

9/24/26, 2:35 PM

Contributed Oral

Realta Fusion is developing a tandem mirror machine, Hammir-DD, to achieve fusion-relevant temperatures using a high-powered negative-ion-based neutral beam injector (NNBI). We will experimentally verify this technology on a full-scale, single source test bed which is targeting a 200 keV beam with approximately 1 MW of neutral power for up to one second of operation.
In parallel, Realta is...

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)

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...