Tootfinder

Scale dependence of segregation patterns in the filling of silos
Shivakumar Athani, Benjy Marks, Fran\c{c}ois Guillard, Alistair Gillespie, Itai Einav
https://arxiv.org/abs/2508.00318

Scale dependence of segregation patterns in the filling of silos
Size segregation in granular flows is a well-known phenomenon: laboratory experiments consistently show that large particles migrate toward silo walls during filling, while smaller particles concentrate near the center. Paradoxically, field observations in large-scale industrial silos often report the opposite pattern, challenging these findings. We demarcate these patterns through a systematic experimental study spanning a range of dimensionless numbers relevant to bidisperse granular flows in…

Radiochromic Film Dosimetry for VHEE and UHDR: Considerations for the CLEAR Facility and Comparisons with Alanine, RPL and Dosimetry Phantoms
V. F. Rieker, J. J. Bateman, L. M. Wroe, M. Caloz, V. Grilj, Y. Q. Aguiar, A. Sch\"uller, C. Bailat, W. Farabolini, A. Gilardi, C. Robertson, P. Korysko, A. Malyzhenkov, S. Stapnes, M. -C. Vozenin, M. Dosanjh, R. Corsini

Radiochromic Film Dosimetry for VHEE and UHDR: Considerations for the CLEAR Facility and Comparisons with Alanine, RPL and Dosimetry Phantoms
Radiochromic films (RCFs) offer valuable two-dimensional dosimetry capabilities with a conceptually simple operating principle that requires minimal investment, making them particularly suitable for very high energy electron (VHEE) FLASH dosimetry where dosimetry standards are currently lacking. However, achieving high-accuracy measurements with RCFs presents significant practical challenges. Without the standardised protocols that ensure reliable outcomes across applications and facilities, kn…