Flux profile scanners for scattered high-energy electrons
  The paper describes the design and performance of flux integrating Cherenkov scanners with air-core reflecting light guides used in a high-energy, high-flux electron scattering experiment at the Stanford Linear Accelerator Center. The scanners were highly radiation resistant and provided a good signal to background ratio leading to very good spatial resolution of the scattered electron flux profile scans. 
R.S Hicks, P. Decowski, C. Arroyo, M. Breuer, J. Celli, E. Chudakov,   K.S. Kumar, M. Olson, G.A. Peterson, K. Pope, J. Ricc...