Characterization of hydrogenated amorphous silicon sensors on polyimide flexible substrate
Abstract
Hydrogenated amorphous silicon (a-Si:H) is a material having an intrinsically high radiation hardness that can be deposited on flexible substrates like Polyimide. For these properties a-Si:H can be used for the production of flexible sensors. a-Si:H sensors can be successfully utilized in dosimetry, beam monitoring for particle physics (x-ray, electron, gamma-ray and proton detection) and radiotherapy, radiation flux measurement for space applications (study of solar energetic particles and stellar events) and neutron flux measurements. In this paper we have studied the dosimetric x-ray response of n-i-p diodes deposited on Polyimide. We measured the linearity of the photocurrent response to x-rays versus dose-rate from which we have extracted the dosimetric x-ray sensitivity at various bias voltages. In particular low bias voltage operation has been studied to assess the high energy efficiency of these kind of sensor. A measurement of stability of x-ray response versus time has been shown. The effect of detectors annealing has been studied. Operation under bending at various bending radii is also shown.
Keywords
Cite
@article{arxiv.2310.00495,
title = {Characterization of hydrogenated amorphous silicon sensors on polyimide flexible substrate},
author = {M. Menichelli and L. Antognini and S. Aziz and A. Bashiri and M. Bizzarri and L. Calcagnile and M. Caprai and D. Caputo and A. P. Caricato and R. Catalano and D. Chilà and G. A. P. Cirrone and T. Croci and G. Cuttone and G. De Cesare and S. Dunand and M. Fabi and L. Frontini and C. Grimani and M. Ionica and K. Kanxheri and M. Large and V. Liberali and N. Lovecchio and M. Martino and G. Maruccio and G. Mazza and A. G. Monteduro and A. Morozzi and F. Moscatelli and A. Nascetti and S. Pallotta and A. Papi and D. Passeri and M. Pedio and M. Petasecca and G. Petringa and F. Peverini and L. Piccolo and P. Placidi and G. Quarta and S. Rizzato and G. Rossi and F. Sabbatini and L. Servoli and A. Stabile and C. Talamonti and J. E. Thomet and L. Tosti and M. Villani and R. J. Wheadon and N. Wyrsch and N. Zema},
journal= {arXiv preprint arXiv:2310.00495},
year = {2023}
}