@Article{Guadilla_etal2024, author="Guadilla, V. and Algora, A. and Estienne, M. and Fallot, M. and Gelletly, W. and Porta, A. and Rigalleau, L. M. and Stutzmann, J. S.", title="First measurements with a new fl-electron detector for spectral shape studies", journal="Journal of Instrumentation", year="2024", publisher="IOP Publishing Ltd", volume="19", number="2", pages="P02027 - 21pp", optkeywords="Detector modelling and simulations I (interaction of radiation with matter; interaction of photons with matter; interaction of hadrons with matter; etc); Instrumentation for radioactive beams (fragmentation devices; fragment and isotope; separators incl. ISOL; isobar separators; ion and atom traps; weak-beam diagnostics; radioactive-beam ion sources); Hybrid detectors; Spectrometers", abstract="The shape of the electron spectrum emitted in /3 decay carries a wealth of information about nuclear structure and fundamental physics. In spite of that, few dedicated measurements have been made of /3 -spectrum shapes. In this work we present a newly developed detector for /3 electrons based on a telescope concept. A thick plastic scintillator is employed in coincidence with a thin silicon detector. The first measurements employing this detector have been carried out with mono -energetic electrons from the high-energy resolution electron -beam spectrometer at Bordeaux. Here we report on the good reproduction of the experimental spectra of mono -energetic electrons using Monte Carlo simulations. This is a crucial step for future experiments, where a detailed Monte Carlo characterization of the detector is needed to determine the shape of the /3 -electron spectra by deconvolution of the measured spectra with the response function of the detector. A chamber to contain two telescope assemblies has been designed for future /3 -decay experiments at the Ion Guide Isotope Separator On -Line facility in Jyvaskyla, aimed at improving our understanding of reactor antineutrino spectra.", optnote="WOS:001181748300007", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=6064), last updated on Sat, 20 Apr 2024 12:06:25 +0000", issn="1748-0221", doi="10.1088/1748-0221/19/02/P02027", opturl="https://arxiv.org/abs/2305.13832", opturl="https://doi.org/10.1088/1748-0221/19/02/P02027", language="English" }