Abstract
The goal of the ALPHA experiment is the production, trapping and spectroscopy of antihydrogen. A direct comparison of the ground state hyperfine spectra in hydrogen and antihydrogen has the potential to be a high-precision test of CPT symmetry. We present a novel method for measuring the strength of a microwave field for hyperfine spectroscopy in a Penning trap. This method incorporates a non-destructive plasma diagnostic system based on electrostatic modes within an electron plasma. We also show how this technique can be used to measure the cyclotron resonance of the electron plasma, which can potentially serve as a non-destructive measurement of plasma temperature.
Original language | English |
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Pages (from-to) | 117-123 |
Number of pages | 7 |
Journal | Hyperfine Interactions |
Volume | 212 |
Issue number | 1-3 |
DOIs | |
State | Published - 1 Dec 2012 |
Externally published | Yes |
Keywords
- Antimatter
- Non-neutral plasmas
- Penning trap
- Plasma diagnostics
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Nuclear and High Energy Physics
- Condensed Matter Physics
- Physical and Theoretical Chemistry