PRELIMINARY DATA JUN. 2000 PHOTOMULTIPLIER TUBE R.
Hamamatsu Corporation
R7639 - PHOTOMULTIPLIER TUBE
PRELIMINARY DATA JUN. 2000 PHOTOMULTIPLIER TUBE R7639 Quantum Efficiency: 40 % at 155 nm High Sensitivity Solar Blind Photocathode (115 nm to 230 nm.