Viterbi Decoding of CRES Signals in Project 8

• Published in: arXiv.org 2022-05
• Main Authors: A Ashtari Esfahani, Bogorad, Z, Böser, S, Buzinsky, N, Claessens, C, de Viveiros, L, Fertl, M, maggio, J A, Gladstone, L, Grando, M, Guigue, M, Hartse, J, Heeger, K M, Huyan, X, Johnston, J, Jones, A M, Kazkaz, K, LaRoque, B H, M Li, Lindman, A, Matthé, C, Mohiuddin, R, Monreal, B, Nikkel, J A, Novitski, E, Oblath, N S, Peña, J I, Pettus, W, Reimann, R, Robertson, R G H, Rybka, G, Saldaña, L, Schram, M, Slocum, P L, Stachurska, J, Y -H Sun, Surukuchi, P T, Telles, A B, Thomas, F, Thomas, M, Thümmler, T, Tvrznikova, L, Van De Pontseele, W, VanDevender, B A, Weiss, T E, Wendler, T, Zayas, E, Ziegler, A
• Format: Article
• Language: English
• Subjects: Algorithms; Charged particles; Cyclotron radiation; Cyclotrons; Frequency measurement; Markov chains; Radiation; Viterbi algorithm detectors; Viterbi decoding
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2112.05265

Cyclotron Radiation Emission Spectroscopy (CRES) is a modern approach for determining charged particle energies via high-precision frequency measurements of the emitted cyclotron radiation. For CRES experiments with gas within the fiducial volume, signal and noise dynamics can be modelled by a hidden Markov model. We introduce a novel application of the Viterbi algorithm in order to derive informational limits on the optimal detection of cyclotron radiation signals in this class of gas-filled CRES experiments, thereby providing concrete limits from which future reconstruction algorithms, as well as detector designs, can be constrained. The validity of the resultant decision rules is confirmed using both Monte Carlo and Project 8 data.