R. Aleksan et al., MEASUREMENTS OF CSI PHOTOCATHODE QUANTUM EFFICIENCY IN METHANE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 343(1), 1994, pp. 173-177
The Cherenkov light produced by 2.8 GeV/c protons in a solid NaF radia
tor has been detected with a CsI photocathode coupled to a multiwire p
roportional chamber. The measurement of the number of photoelectrons g
ives an estimation of the photocathode quantum efficiency.