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The Center for Bright Beams, A National Science Foundation Science and Technology Center

Accelerator Materials

Photoemission and Photocathodes

  • Coherent, three-body electron-phonon-photon scattering Nangoi, Karkare, Sundararaman, Padmore, and Arias, Phys. Rev. B, 104, 115132  (2021)
  • Light-induced, non-equilibrium electron distributions Maxson et al, NIM-A 865, pp. 99–104 (2017)
  • Multi-photon processesMaxson et al, NIM-A 865, pp. 99–104 (2017);  Nangoi, PhD Thesis, Cornell University (2022);  Bae et al, J. Appl. Phys. 124, no. 24, p. 244903 (2018)
  • Ab initio plane-wave, truncated Green’s function approach to electron scattering states Wu, in preparation

CBB is widely recognized as a world leader, and perhaps the world leader in advanced photocathodes.

Superconductivity and SRF cavities

  • Defect formation and impact on the Fermi-level density of states (related to Tc) Sitaraman et al, Phys. Rev. B 103, 115106 (2021); Kelley, Sitaraman, and Arias, Supercond. Sci. Technol., 34, no. 1, p. 015015 (2021).
  • Experimentally-validated ab initio theory of Helium Atom Scattering (HAS) McMillan, Thompson, et al, J. Chem. Phys. 156, no. 12, 124702 (2022); Thompson, et al.  J. Phys. Chem C 128, 14, 6149 (2024); Kelley, et al., PRL 132 016203 (2024) (inelastic); Mendez et al, in prep.
  • Zr-doped Nb: Tc limitation and a solution using ordered alloys Sitaraman et al., arXiv.2208.10678, PR Appl. (2023); Z. Sun et al.,  Adv.Electr.Mat. (2023) https://doi.org/10.1002/aelm.202300151
  • Multi-scale description of SRF materials, combining experiment, ab initio calculations and mesoscopic, continuum modeling 
    Carlson et al., Phys. Rev. B 103, 024516 (2021); Pack et al., Phys Rev B 101, 144504 (2020)
 

Inaugural Materials for Bright Beams Workshop 2025. 

Information on the inaugural workshop for accelerator materials
Inaugural Accelerator Materials Workshop