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Hauptverfasser: Agostini, M., Wight, A. Alexander, Altomare, M., Baş, K., Baily, N., Barbeau, P. S., Baron, A. J., Bash, S., Bellenghi, C., Boehmer, M., Brandenburg, M., Bunton, P., Cedarblade-Jones, N., Crudele, B., Danninger, M., DeYoung, T., Gärtner, A., Garriz, J., Ghuman, D., Ginzkey, L., Glukler, T., Gousy-Leblanc, V., Grant, D., Grimes, A., Haack, C., Hall, R., Halliday, R., Hembroff, D., Henningsen, F., Herle, M., Janik, O., Johnson, H., Kang, W., Karanth, S., Kerscher, T., Kerschtien, S., Kopański, K., Kopper, C., Krause, P., Krauss, C. B., Kurahashi, N., Gualda, C. Lagunas, Lam, A., Lavallee, T., Leismüller, K., Li, R., Loipolder, S., Magee, C., Magel, S., Malecki, P., Martin, T., Maunder, A., Miller, C., Molberg, N., Moore, R., Nührenbörger, B., Nichol, B., Noga, W., Ørsøe, R., Papp, L., Parrish, V., Pfahler, P., Pflanz, J., Pirenne, B., Price, E., Rahlin, A., Rangen, M., Resconi, E., Robertson, S., Rodriguez-Pilco, M. F., Salazar-Gallegos, D., Scholz, A., Schumacher, L., Sharma, S., Smithers, B. R., Spannfellner, C., Stacho, J., Taboada, I., Tchiorniy, K., Twagirayezu, J. P., Nisa, M. Un, Veenstra, B., Velazquez, M., von der Werth, L., Weaver, C., Whitehorn, N., Winter, L., Wroński, R., Yañez, J. P., Yun-Cárcamo, S., Zaalishvili, A.
Format: Preprint
Veröffentlicht: 2026
Schlagworte:
Instrumentation and Detectors
Instrumentation and Methods for Astrophysics
High Energy Physics - Experiment
Online-Zugang:https://arxiv.org/abs/2603.09495
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Inhaltsangabe:
  • This work presents the design and performance characterization of the optical calibration systems produced for the Pacific Ocean Neutrino Experiment (P-ONE). These include novel light-pulse driver circuitry based on gallium nitride field-effect transistor technology and its application to directional and isotropic, self-monitoring optical calibration instruments. A total of 330 directional light pulsers and two isotropic, 17-inch calibration modules (P-CALs) were produced for the first P-ONE line. We present the designs and performance of both the directional and isotropic calibration devices and perform detailed optical characterizations of both full-production batches. In a wavelength range of $365-520\,$nm, our developed driver circuits achieve emission intensities up to $10^{11}\,$photons and pulse widths as small as $1.4\,$ns, respectively. Light-pulse drivers and self-monitoring electronics in the P-CAL were characterized using the same experimental setup, and the instrument's optical-isotropy design was optimized in combination with a dedicated GEANT4-based simulation framework. The optimized P-CAL achieves a simulated isotropy grade of $1.00 \pm 0.01$ across the entire $4 π$ solid angle range. These simulation investigations were explicitly confirmed by dedicated measurements in both air and water using two independent experimental setups, and we report the results. With this, a detailed performance estimate for deployed P-CAL modules in P-ONE was possible.

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