DOE OSTI · 2572660
The real-time data processing and acquisition system for Project 8 Phase II
Abstract
In Phase II of the Project 8 neutrino mass experiment, electrons from the decays of tritium or 83 m Kr are detected via their ≈ 26GHz cyclotron radiation while contained within a circular waveguide. The signal from a given electron is characterized as a brief chirp, lasting ≲ 10ms and changing in frequency by ≲ 1MHz/ms. To detect these signals, the Project 8 collaboration developed a Data Acquisition (DAQ) system tailored to the signal properties. The DAQ is responsible for simultaneously selecting up to three 100MHz-wide frequency windows to study, detect, and trigger on likely signals from different electron kinetic energies, and for writing the relevant data to disk. We describe the Phase II DAQ system in detail and address how the system was used for data-taking operations.
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Ashtari Esfahani, A. [Washington U., Seattle; Sharif U. of Tech.], Banducci, A. [Washington U., Seattle], Böser, S. [Mainz U.], Buzinsky, N. [MIT; Washington U., Seattle], Cervantes, R. [Washington U., Seattle], Claessens, C. [Mainz U.; Washington U., Seattle], de Viveiros, L. [Penn State U.], Fertl, M. [Mainz U.], Formaggio, J. A. [MIT], Gladstone, L. [Dortmund U.; Alexandria U.], Grando, M. [PNL, Richland; ISRI, Geneva], Guigue, M. [PNL, Richland], Hartse, J. [Washington U., Seattle], Heeger, K. M. [Yale U., Math. Dept.], Jones, A. M. [PNL, Richland; Unlisted, US, CA], Kazkaz, K. [LLNL, Livermore], LaRoque, B. H. [PNL, Richland], Lindman, A. [Mainz U.], Monreal, B. [Dortmund U.], Nikkel, J. A. [Yale U., Math. Dept.], Novitski, E. [Washington U., Seattle], Oblath, N. S. [PNL, Richland] (ORCID:0000000341542271), Pettus, W. [Indiana U.], Robertson, R. G.H. [Washington U., Seattle], Rybka, G. [Washington U., Seattle], Saldaña, L. [Yale U., Math. Dept.; DAPNIA, Saclay], Slocum, P. L. [Yale U., Math. Dept.], Sun, Y.-H. [Dortmund U.], Surukuchi, P. T. [Yale U., Math. Dept.], Telles, A. B. [Yale U., Math. Dept.], Thomas, F. [Mainz U.], Thomas, M. [PNL, Richland; Planning Systems, McLean], Thümmler, T. [KIT, Karlsruhe, IKP], Tvrznikova, L. [LLNL, Livermore; Unlisted, US, CA], VanDevender, B. A. [PNL, Richland; Washington U., Seattle], Weiss, T. E. [Yale U., Math. Dept.], Young, A. [Harvard U.; Nijmegen U.], Zayas, E. [MIT], Ziegler, A. [Penn State U.; Hughes Res. Labs, Malibu]. 2025-07-19. The real-time data processing and acquisition system for Project 8 Phase II. https://doi.org/10.48550/arxiv.2506.22392
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