Beta energy dependence of the Ag-doped phosphate glass detector response

Y.O. Salem (1) , A. Nourreddine (1) , Z. El Bitar (1) , N. Arbor (1) , O. Bolusset (1)

1 IPHC - Institut Pluridisciplinaire Hubert Curien

The radiophotoluminescent (RPL) signal of Ag-doped phosphate glass detectors to β-radiation is significantly influenced by β-particle energy. We investigate the β-particle energy and angular dependence of incident β radiation on the RPL signal emitted from the detectors. The results of measurements and MCNPX simulations show that the detector sensitivity decreases with increasing β-energy and has little dependence on the angle of incidence. The consequence is that a dose assessment will be strongly biased if the detector calibration is performed with β-rays different from those monitored.

Mots clés: Radiophotoluminescence; Ag-doped phosphate glass; Beta dosimetry; MCNPX

Domaines: Physique [physics]

Y.O. Salem, A. Nourreddine, Z. El Bitar, N. Arbor, O. Bolusset. Beta energy dependence of the Ag-doped phosphate glass detector response. Radiat.Meas., 2019, 126, pp.106136. ⟨10.1016/j.radmeas.2019.106136⟩. ⟨hal-02264956⟩