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

Session

S2: Chairperson - Jean-Baptiste Lallement, CERN

Sep 23, 2026, 10:10 AM

Conference Room (Prestige Lakeside Resort Nelson)

62. Lifetime and Emittance Optimization for High Intensity RF-driven H- Source

Weidong Chen (Institute of high energy physics, Chinese Academy of Sciences.)

9/23/26, 10:10 AM

Invited

Lifetime and emittance are two key parameters for an RF-driven H$^-$ source used in high-power proton accelerators. At the China Spallation Neutron Source (CSNS), we have developed a high-intensity RF-driven H$^-$ ion source with an external antenna structure, capable of generating a beam current exceeding 60 mA. To extend the lifetime of the ion source, improvements have been made over the...

43. Design choices, implementation and status of the PIP-II Warm Front End

Lionel Prost (Fer)

9/23/26, 10:35 AM

Invited

The Proton Improvement Plan II (PIP-II) at Fermilab is a program of upgrades to the injection complex currently under construction. A major component is a new 2 mA, 800 MeV H- CW-compatible superconducting linac (a.k.a. Linac2), initially operating in a beam pulse mode. Installation of the Warm Front End (WFE) in the Linac2 facility is underway. Beam commissioning is planned to start in summer...

161. Operational Experience with a Positive / Negative Filament Ion Source

Brian Roeder (Cyclotron Institute, Texas A&M University)

9/23/26, 11:00 AM

Invited

A filament-driven ion source for hydrogen and helium ion beams, capable of producing both positive and negative ions, has been in operation at the Cyclotron Institute at Texas A&M University since early 2024. The ion source, manufactured by D-Pace, replaced an older filament ion source that only produced H- and D- ions. The +/- filament ion source has been installed on the vertical injection...

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

Jongchul Lee (Korea Atomic Energy Research Institute)

9/23/26, 11:25 AM

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...

34. Reliable long-life Operations and Record High beam current Demonstration of the H⁻ ion source at SNS

Dr Baoxi Han (Oak Ridge National Laboratory)

9/23/26, 11:45 AM

Invited

The ion source utilized in the SNS accelerator complex is an RF‑driven, multicusp‑confined, Cs‑enhanced H⁻ source. It is presently operated at approximately 50 mA of H⁻ beam current (measured at the LEBT exit) with a 6% duty-factor (1.0 ms, 60 Hz), supporting the SNS proton beam power on target near 2.0 MW. Producing this beam current typically requires about 50 kW of RF power for the ion...