1. Larmor Power Limit for Cyclotron Radiation of Relativistic Particles in a Waveguide
- Author
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Buzinsky, N., Taylor, R. J., Byron, W., DeGraw, W., Dodson, B., Fertl, M., García, A., Goodson, A. P., Graner, B., Harrington, H., Hayen, L., Malavasi, L., McClain, D., Melconian, D., Müller, P., Novitski, E., Oblath, N. S., Robertson, R. G. H., Rybka, G., Savard, G., Smith, E., Stancil, D. D., Storm, D. W., Swanson, H. E., Tedeschi, J. R., VanDevender, B. A., Wietfeldt, F. E., and Young, A. R.
- Subjects
Nuclear Experiment - Abstract
Cyclotron radiation emission spectroscopy (CRES) is a modern technique for high-precision energy spectroscopy, in which the energy of a charged particle in a magnetic field is measured via the frequency of the emitted cyclotron radiation. The He6-CRES collaboration aims to use CRES to probe beyond the standard model physics at the TeV scale by performing high-resolution and low-background beta-decay spectroscopy of ${}^6\textrm{He}$ and ${}^{19}\textrm{Ne}$. Having demonstrated the first observation of individual, high-energy (0.1 -- 2.5 MeV) positrons and electrons via their cyclotron radiation, the experiment provides a novel window into the radiation of relativistic charged particles in a waveguide via the time-derivative (slope) of the cyclotron radiation frequency, $\mathrm{d}f_\textrm{c}/\mathrm{d}t$. We show that analytic predictions for the total cyclotron radiation power emitted by a charged particle in circular and rectangular waveguides are approximately consistent with the Larmor formula, each scaling with the Lorentz factor of the underlying $e^\pm$ as $\gamma^4$. This hypothesis is corroborated with experimental CRES slope data., Comment: 20 pages, 5 figures
- Published
- 2024