%0 Journal Article
%T First measurements with a new fl-electron detector for spectral shape studies
%A Guadilla, V.
%A Algora, A.
%A Estienne, M.
%A Fallot, M.
%A Gelletly, W.
%A Porta, A.
%A Rigalleau, L. M.
%A Stutzmann, J. S.
%J Journal of Instrumentation
%D 2024
%V 19
%N 2
%I IOP Publishing Ltd
%@ 1748-0221
%G English
%F Guadilla_etal2024
%O WOS:001181748300007
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=6064), last updated on Sat, 20 Apr 2024 12:06:25 +0000
%X 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.
%K Detector modelling and simulations I (interaction of radiation with matter
%K interaction of photons with matter
%K interaction of hadrons with matter
%K etc)
%K Instrumentation for radioactive beams (fragmentation devices
%K fragment and isotope
%K separators incl. ISOL
%K isobar separators
%K ion and atom traps
%K weak-beam diagnostics
%K radioactive-beam ion sources)
%K Hybrid detectors
%K Spectrometers
%R 10.1088/1748-0221/19/02/P02027
%U https://arxiv.org/abs/2305.13832
%U https://doi.org/10.1088/1748-0221/19/02/P02027
%P P02027 - 21pp