Ion sources and injectors for HIF induction linacs

Journal Article · Tue Aug 01 04:00:00 EDT 2000 · eConf C000821:MOD05

OSTI ID:830667

Henestroza, E ^[1]

---

1. SLAC

For heavy ion fusion (HIF) induction linac drivers, a typical injector requires total beam current of 50-100 A and is comprised of many individual beams of 0.5-1.0 A each. As a step towards developing a full ion driver for inertial fusion energy (IFE) power plants, an Integrated Research Experiment (IRE) will be proposed within a few years [1]. The IRE will have a linac of more than 150 MeV and beam current about 18 A (ion mass 39). At present, a compact multiple-beam injector is being developed to meet the IRE specifications. In our design, about 100 miniature beamlets (of a few mA each) will be merged to form each 0.5 A beam at the matching section. The beamlets have current density up to 100 mA/cm2 at the ion source (as opposed to 3.5 mA/cm2 used in previous low current density large beam designs). With optimized positioning and aiming, the miniature beamlets can quickly merge and match into an ESQ channel thus minimizing the matching section size requirement. Simulation results have shown that when the beamlet current is small and the number of beamlets are large, the emittance of a 1.6 MeV, 0.5 A beam (after merging) at the end of the injector is 1.0 {pi} mm-mrad.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (US)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 830667
• Report Number(s): SLAC-REPRINT-2000-138
• Journal Information: eConf C000821:MOD05, Journal Name: eConf C000821:MOD05
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
INDUCTION
ION SOURCES
LINEAR ACCELERATORS
STANFORD LINEAR ACCELERATOR CENTER