RT Journal Article
T1 Time response of an undoped LaCl3 crystal
A1 Caballero Rodríguez, Miriam
A1 Sánchez Tembleque Verbo, Víctor
A1 Fraile Prieto, Luis Mario
A1 Fonseca Vargas, C.
A1 Gaitán Domínguez, Sara
A1 Kim, H.J.
A1 Martínez Nouvilas, Víctor
A1 Martínez Roig, M.
A1 Nácher, E.
A1 Udías Moinelo, José Manuel
A1 Vuong, P.Q.
AB We have characterized a detector equipped with an undoped LaCl truncated cone crystal with dimensions of 22.5 mm in the largest diameter, 16 mm in the smallest diameter, and 16 mm in height, coupled to a fast Photonis XP2020/URQ photomultiplier tube (PMT). Its time response at 511 keV (22Na) and 60Co photon energies has been measured against a reference detector using a fast digitizer module by digital signal processing methods based on a genetic algorithm. The time resolution was optimized by the choice of the photomultiplier bias voltage and the fine-tuning of the digital parameters of the time pickup algorithm. The de-convoluted full width at half maximum (FWHM) time resolution is found to be 250 ± 10 ps at 60Co energies, and 444 ± 8 ps using positron annihilation -rays from 22Na, providing good prospects for the use of the crystal in applications requiring a fast time response.
PB Elsevier
SN 0969-806X
YR 2026
FD 2026-02
LK https://hdl.handle.net/20.500.14352/124558
UL https://hdl.handle.net/20.500.14352/124558
LA eng
NO Caballero, M., Sánchez-Tembleque, V., Fraile, L.M., Fonseca-Vargas, C., Gaitán, S., Kim, H.J., Martínez-Nouvilas, V., Martínez-Roig, M., Nácher, E., Udías, J.M., Vuong, P.Q., 2026. Time response of an undoped LaCl 3 crystal. Radiation Physics and Chemistry 239, 113239. https://doi.org/10.1016/j.radphyschem.2025.113239
NO © 2025 The Authors.CIPROM/2021/064
NO Ministerio de Ciencia e Innovación (España)
NO Agencia Estatal de Investigación (España)
NO European Commission
NO Comunidad de Madrid
NO Generalitat Valenciana
DS Docta Complutense
RD 21 mar 2026