CERN moves 92 antiprotons on road test
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- CERN successfully transported a portable cryogenic Penning trap containing 92 antiprotons over a 10‑kilometre road test around its campus.
- Stefan Ulmer monitored the antiprotons' frequency signature on a phone during the drive and confirmed the particles remained intact despite minor resonant frequency shifts.
- Francois Butin said the test opens possibilities for delivering antiprotons to quieter facilities for higher‑precision measurements.
- Marcus Jankowski highlighted road vibrations as the most critical risk, and the trap was kept at 8.2 K in a strong vacuum to prevent annihilation.
- Christian Smorra noted that delivering the trap to the Dusseldorf precision lab (an eight‑hour drive) will require maintaining the superconducting magnet’s temperature and solving the transfer‑without‑vanishing challenge.
Why it matters: European precision‑physics labs will now be able to receive antiprotons directly, enabling experiments that are 100‑1,000 times more accurate, while the technical hurdle of keeping the cryogenic trap at 8.2 K and vibration‑free during transport must be mastered to prevent particle loss.
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