https://catalog.data.gov/dataset/barrel-3e-x-ray-spectrometer-fspc-bremsstrahlung-x-ray-spectrum-fast-time-resolution-level
National Aeronautics and Space Administration - BARREL 3E X-ray Spectrometer (FSPC) Bremsstrahlung...
FSPC: Six channels of fast time resolution, 50 ms, Bremsstrahlung X-ray spectra detected with a NaI Scintillator. Each channel is separated in its own...
aeronautics and space
https://popular-culture.org/
FSPC