Tootfinder

Long-lived dynamics of the charge density wave in TiSe$_2$ observed by neutron scattering
K. Dharmasiri (Department of Physics, University of Virginia, Charlottesville, United States), S. S. Philip (Department of Physics, University of Virginia, Charlottesville, United States), D. Louca (Department of Physics, University of Virginia, Charlottesville, United States), S. A. Chen (Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, United States), M. D. Frontzek (Neutro…

Long-lived dynamics of the charge density wave in TiSe$_2$ observed by neutron scattering
Time-resolved elastic neutron scattering combined with rapid laser heating was used to probe the charge density wave (CDW) state in 1T-TiSe$_2$, capturing both the melting and reformation of the CDW on long timescales and providing clues on the roles of phonons and excitons. With the laser source on, superlattice Bragg peaks such as (-1.5, -1.5, 1.5) observed below the CDW transition due to the new lattice periodicity, dissipate within 5 seconds, at a rate that is much slower than the sample's …

Advancing 1D thermo-hydraulic tools for large cryogenic facilities
R Beckwith (Fermi National Accelerator Laboratory), R Bruce (Fermi National Accelerator Laboratory), S Koshelev (Fermi National Accelerator Laboratory)
https://arxiv.org/abs/2509.15364

Advancing 1D thermo-hydraulic tools for large cryogenic facilities
The Cryogenic Division at Fermilab develops large-scale cryogenic systems for particle accelerators and superconducting magnet test facilities. To support design and diagnostics, a Python-based code was created to calculate pressure drops in components such as valves and pipes. This paper presents recent enhancements to the code, including new heat transfer functions that improve the accuracy of thermal and hydraulic predictions. The first application models pressure and temperature changes in …