Beta spectrum measurements using a quasi-4$\pi$ detection system based on Si detectors

Abhilasha Singh (1) , Xavier Mougeot (1) , Benoit Sabot (1) , Daniel Lacour (1) , A. Nourreddine (2)

1 LNHB (CEA, LIST) - Laboratoire National Henri Becquerel (CEA, LIST)
2 IPHC - Institut Pluridisciplinaire Hubert Curien

The accurate measurement of beta spectra is highly important in numerous fields such as nuclear energy, nuclear medicine, ionizing radiation metrology and fundamental physics. We have developed a beta spectrometer close to 4π configuration based on silicon detectors. The influence of self-absorption has been studied by means of Monte Carlo simulations and the source preparation technique has been optimized consequently. The measured spectra from 133 Ba and 36 Cl decays have been compared with PENELOPE simulations.

Mots clés: ionizing radiation, radioactivity, beta-rays, spectrum analysis, beta spectra, metrology, nuclear energy, nuclear instrumentation, nuclear medicine, spectrometry, beta spectrometer, detector, silicon detector, self absorption, optimization, Monte Carlo, simulation, source preparation, 133Ba, 36Cl, Decay data measurement, PENELOPE

Domaines: Instrumentations et Détecteurs [physics.ins-det]; Physique Nucléaire Expérimentale [nucl-ex]

Abhilasha Singh, Xavier Mougeot, Benoit Sabot, Daniel Lacour, A. Nourreddine. Beta spectrum measurements using a quasi-4$\pi$ detection system based on Si detectors. Appl.Radiat.Isot., 2019, 154, pp.108897. ⟨10.1016/j.apradiso.2019.108897⟩. ⟨hal-02362184⟩