APS Fellow Persis Drell heads DOE science advisory committee - American Physical Society

The Department of Energy released eight Quantum Genesis Priority Applications to guide the development and evaluation of fault-tolerant quantum computers for scientific use. The applications span chemistry, materials, subatomic physics and applied mathematics, with performance to be benchmarked against advanced supercomputing methods.

We’re sharing this article early to provide faster access to peer-reviewed, accepted research. It is citable and carries a permanent DOI. This version is subject to further edits and will be replaced automatically by the final Version of Record. All legal disclaimers apply. AbstractThis study presents the development of high-sensitivity real-time X-ray dosimeters based on room-temperature-vulcanized (RTV-2) silicone nanocomposites incorporating 0–60 wt% Bi2O3 nanoparticles, fabricated via solution casting. Structural and morphological characterization using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) with elemental mapping, and elemental analysis confirmed the uniform dispersion of monoclinic Bi2O3 nanorods within the amorphous RTV-2 matrix. Complementary Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, and thermogravimetric analysis (TGA) validated the chemical integrity, thermal stability, and mechanical robustness of the resulting nanocomposites. Dosimetric performance was investigated under diagnostic-range X-ray exposure using a COMET MXR 320/26 source (dose rates: 2.8–12 mGy/min).