Advanced muon-spin spectroscopy with high lateral resolution using Si-pixel detectors
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866916047812034560 |
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| author | Mandok, Lukas Isenring, Pascal Augustin, Heiko Köppel, Marius Krieger, Jonas A. Luetkens, Hubertus Prokscha, Thomas Rudzki, Thomas Schöning, André Salman, Zaher |
| author_facet | Mandok, Lukas Isenring, Pascal Augustin, Heiko Köppel, Marius Krieger, Jonas A. Luetkens, Hubertus Prokscha, Thomas Rudzki, Thomas Schöning, André Salman, Zaher |
| contents | Muon-spin spectroscopy at continuous sources has stagnated at a stopped muons rate of ~40 kHz for the last few decades. The major limiting factor is the requirement of a single muon in the sample during the typical 10 μs data gate window. To overcome this limit and to be able to perform muon-spin relaxation (μSR) measurements on millimeter-sized samples, one can use vertex reconstruction methods to construct μSR spectra. This is now possible thanks to the availability of very thin monolithic Si-pixel chips, which offer minimal particle scattering and high count rate. Here we present results from a Si-pixel based spectrometer that utilizes vertex reconstruction schemes for the incoming muons and emitted positrons. With this spectrometer we were able to obtain a first vertex reconstructed μSR (VR-μSR) spectrum. The unique capabilities and benefits of such a spectrometer are discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_08891 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Advanced muon-spin spectroscopy with high lateral resolution using Si-pixel detectors Mandok, Lukas Isenring, Pascal Augustin, Heiko Köppel, Marius Krieger, Jonas A. Luetkens, Hubertus Prokscha, Thomas Rudzki, Thomas Schöning, André Salman, Zaher Instrumentation and Detectors Materials Science Accelerator Physics Muon-spin spectroscopy at continuous sources has stagnated at a stopped muons rate of ~40 kHz for the last few decades. The major limiting factor is the requirement of a single muon in the sample during the typical 10 μs data gate window. To overcome this limit and to be able to perform muon-spin relaxation (μSR) measurements on millimeter-sized samples, one can use vertex reconstruction methods to construct μSR spectra. This is now possible thanks to the availability of very thin monolithic Si-pixel chips, which offer minimal particle scattering and high count rate. Here we present results from a Si-pixel based spectrometer that utilizes vertex reconstruction schemes for the incoming muons and emitted positrons. With this spectrometer we were able to obtain a first vertex reconstructed μSR (VR-μSR) spectrum. The unique capabilities and benefits of such a spectrometer are discussed. |
| title | Advanced muon-spin spectroscopy with high lateral resolution using Si-pixel detectors |
| topic | Instrumentation and Detectors Materials Science Accelerator Physics |
| url | https://arxiv.org/abs/2503.08891 |