Muon tracking in a LiquidO opaque scintillator detector
Abstract
LiquidO is an innovative radiation detector concept. The core idea is to exploit stochastic light confinement in a highly scattering medium to self-segment the detector volume. In this paper, we demonstrate event-by-event muon tracking in a LiquidO opaque scintillator detector prototype. The detector consists of a 30 mm cubic scintillator volume instrumented with 64 wavelength-shifting fibres arranged in an 88 grid with a 3.2 mm pitch and read out by silicon photomultipliers. A wax-based opaque scintillator with a scattering length of approximately 0.5 mm is used. The tracking performance of this LiquidO detector is characterised with cosmic-ray muons and the position resolution is demonstrated to be 450 m per row of fibres. These results highlight the potential of LiquidO opaque scintillator detectors to achieve fine spatial resolution, enabling precise particle tracking and imaging.
Keywords
Cite
@article{arxiv.2507.13864,
title = {Muon tracking in a LiquidO opaque scintillator detector},
author = {LiquidO Collaboration and J. Apilluelo and L. Asquith and E. F. Bannister and N. P. Barradas and C. L. Baylis and J. L. Beney and M. Berberan e Santos and X. de la Bernardie and T. J. C. Bezerra and M. Bongrand and C. Bourgeois and D. Breton and J. Busto and A. Cabrera and A. Cadiou and E. Calvo and M. de Carlos Generowicz and E. Chauveau and B. J. Cattermole and M. Chen and P. Chimenti and D. F. Cowen and S. Kr. Das and S. Dusini and A. Earle and M. Felizardo and C. Frigerio Martins and J. Galán and J. A. García and A. Gibson-Foster and C. Girard-Carillo and W. C. Griffith and J. J. Gómez-Cadenas and M. Guitière and F. Haddad and J. Hartnell and A. Holin and I. G. Irastorza and I. Jovanovic and A. Kling and L. Koch and P. Lasorak and J. F. Le Du and F. Lefevre and P. Loaiza and J. A. Lock and G. Luzón and J. Maalmi and J. P. Malhado and F. Mantovani and J. G. Marques and C. Marquet and M. Martínez and J. T. Moffat and D. Navas-Nicolás and H. Nunokawa and J. P. Ochoa-Ricoux and T. Palmeira and C. Palomares and D. Petyt and P. Pillot and A. Pin and J. C. C. Porter and M. S. Pravikoff and S. Richards and N. Rodrigues and M. Roche and R. Rosero and B. Roskovec and M. L. Sarsa and S. Schoppmann and A. Serafini and C. Shepherd-Themistocleous and W. Shorrock and M. Silva and L. Simard and S. R. Soleti and D. Stocco and V. Strati and J. S. Stutzmann and F. Suekane and N. Tuccori and A. Verdugo and B. Viaud and S. M. Wakely and A. Weber and G. Wendel and A. S. Wilhelm and A. W. R. Wong and M. Yeh and F. Yermia},
journal= {arXiv preprint arXiv:2507.13864},
year = {2026}
}
Comments
20 pages, 7 figures