TY  - JOUR
AU  - Guadilla, V.
AU  - Algora, A.
AU  - Estienne, M.
AU  - Fallot, M.
AU  - Gelletly, W.
AU  - Porta, A.
AU  - Rigalleau, L. M.
AU  - Stutzmann, J. S.
PY  - 2024
DA  - 2024//
TI  - First measurements with a new fl-electron detector for spectral shape studies
T2  - J. Instrum.
JO  - Journal of Instrumentation
SP  - P02027 - 21pp
VL  - 19
IS  - 2
PB  - IOP Publishing Ltd
KW  - Detector modelling and simulations I (interaction of radiation with matter
KW  - interaction of photons with matter
KW  - interaction of hadrons with matter
KW  - etc)
KW  - Instrumentation for radioactive beams (fragmentation devices
KW  - fragment and isotope
KW  - separators incl. ISOL
KW  - isobar separators
KW  - ion and atom traps
KW  - weak-beam diagnostics
KW  - radioactive-beam ion sources)
KW  - Hybrid detectors
KW  - Spectrometers
AB  - 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.
SN  - 1748-0221
UR  - https://arxiv.org/abs/2305.13832
UR  - https://doi.org/10.1088/1748-0221/19/02/P02027
DO  - 10.1088/1748-0221/19/02/P02027
LA  - English
N1  - WOS:001181748300007
ID  - Guadilla_etal2024
ER  -