R943-02

Parameter	Value	Unit
Supply Voltage Between Anode and Cathode Between Anode and Last Dynode	2200 250	V V
Average Anode Current	1	A
Average Pulse Count Rate	6 * 106	s-1
Average Cathode Current	1	nA

Hamamatsu R943-02 is a 51 mm (2") diameter head-on type photomultiplier tube having GaAs (Cs) photocathode and synthetic silica window. The combination of the GaAs photocathode and the synthetic silica window allows high sensitivity over a wide spectral range from UV to IR (160 nm to 930 nm).

The R943-02 is selected for photon counting and features low dark counts and excellent pulse height distribution (PHD) of single photoelectrons.