High-Resolution Timing for Vertex-Reconstructed Muon-Spin Spectroscopy Using Plastic Scintillators and MuTRiG
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2026
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| author | Briggl, Konrad Lamotte, Maxime Köppel, Marius Snella Krieger, Jonas A. Augustin, Heiko Berger, Niklaus Doll, Andrin Isenring, Pascal Luetkens, Hubertus Mühle, Sebastian Prokscha, Thomas Rudzki, Thomas Schöning, André Schultz-Coulon, Hans-Christian Salman, Zaher |
| author_facet | Briggl, Konrad Lamotte, Maxime Köppel, Marius Snella Krieger, Jonas A. Augustin, Heiko Berger, Niklaus Doll, Andrin Isenring, Pascal Luetkens, Hubertus Mühle, Sebastian Prokscha, Thomas Rudzki, Thomas Schöning, André Schultz-Coulon, Hans-Christian Salman, Zaher |
| contents | Vertex-reconstructed muon-spin spectroscopy (vx-μSR) based on silicon pixel detectors has recently demonstrated unprecedented lateral resolution and operation at muon stop rates exceeding 400 kHz. However, the intrinsic timing resolution of current silicon pixel detector technology limits the accessible frequency range and restricts μSR measurements with fast relaxation rates. In this work, we report on the integration of plastic scintillator detectors (PSD) read out with the MuTRiG ASIC into the MuSiP vx-μSR spectrometer. This complements the spatial resolution achieved by using silicon pixel detectors with high-precision timing information for incoming muons and decay positrons. We demonstrate stable operation of MuTRiG in vacuum and achieve sub-300 ps time resolution after time-walk correction. Standard transverse-field μSR measurements on a SiO$_2$ sample confirm that the combined MuTRiG-PSD system resolves precession frequencies beyond 50 MHz, far exceeding the capabilities of silicon pixel detectors alone. These results establish a viable and scalable path towards high-rate, high-resolution μSR with both excellent spatial and temporal performance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_10567 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | High-Resolution Timing for Vertex-Reconstructed Muon-Spin Spectroscopy Using Plastic Scintillators and MuTRiG Briggl, Konrad Lamotte, Maxime Köppel, Marius Snella Krieger, Jonas A. Augustin, Heiko Berger, Niklaus Doll, Andrin Isenring, Pascal Luetkens, Hubertus Mühle, Sebastian Prokscha, Thomas Rudzki, Thomas Schöning, André Schultz-Coulon, Hans-Christian Salman, Zaher Instrumentation and Detectors Vertex-reconstructed muon-spin spectroscopy (vx-μSR) based on silicon pixel detectors has recently demonstrated unprecedented lateral resolution and operation at muon stop rates exceeding 400 kHz. However, the intrinsic timing resolution of current silicon pixel detector technology limits the accessible frequency range and restricts μSR measurements with fast relaxation rates. In this work, we report on the integration of plastic scintillator detectors (PSD) read out with the MuTRiG ASIC into the MuSiP vx-μSR spectrometer. This complements the spatial resolution achieved by using silicon pixel detectors with high-precision timing information for incoming muons and decay positrons. We demonstrate stable operation of MuTRiG in vacuum and achieve sub-300 ps time resolution after time-walk correction. Standard transverse-field μSR measurements on a SiO$_2$ sample confirm that the combined MuTRiG-PSD system resolves precession frequencies beyond 50 MHz, far exceeding the capabilities of silicon pixel detectors alone. These results establish a viable and scalable path towards high-rate, high-resolution μSR with both excellent spatial and temporal performance. |
| title | High-Resolution Timing for Vertex-Reconstructed Muon-Spin Spectroscopy Using Plastic Scintillators and MuTRiG |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2603.10567 |