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arXiv · 2507.01819

The fast X-ray detector system of the FAMU experiment at RAL

M. Bonesini
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Abstract

The FAMU experiment at RAL has been designed to study the hyperfine splitting (HFS) of muonic hydrogen and thus measure the Zemach radius of the proton, with a precision better than 1 %. The HFS transition is excited by a tunable MIR laser at ~ 6790 nm and is recognized by delayed ($\mu$O) X-ray emission around 130-170 keV. The fast X-ray detection system is based on 34 scintillating LaBr3:Ce crystals and one HPGe detector for inter-calibration.

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M. Bonesini. 2025-07-02. The fast X-ray detector system of the FAMU experiment at RAL. https://doi.org/10.1016/j.nima.2025.170780

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