PPT Slide
Antihydrogen atom production in a stellarator
- Strengths
- Trivially confines positrons and antiprotons in same volume
- Minimum B well for neutrals can probably be integrated without loss of confinement
- Does not require (nor preclude) quasi-neutrality
- Open questions/challenges
- Confinement must be neoclassical, no turbulence/instabilities allowed...
- Efficient injection mechanisms must be developed for both species
- Minimum B well may not be deep enough for efficient neutral trapping
- Current optimal design:
- Low aspect ratio (fat) quasi-helically symmetric stellarator at high magnetic field, loaded by Penning trapped particles or bright, cold (keV or less) beams - 0.1% may recombine (preliminary calculation)
- More detailed experimental and theoretical studies needed