The fast X-ray detector system of the FAMU experiment at RAL
M. Bonesini
TL;DR
The paper describes the design and implementation of a fast X-ray detector system using LaBr3:Ce scintillators and an HPGe detector for the FAMU experiment, aiming to precisely measure muonic hydrogen hyperfine splitting.
Contribution
It introduces a novel fast X-ray detection system optimized for the FAMU experiment's high-precision measurements.
Findings
Successful detection of delayed X-ray emissions in the 130-170 keV range.
Enhanced calibration accuracy through the HPGe detector.
Improved timing resolution for hyperfine transition detection.
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 (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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