PHOTOMULTlPLlER TUBES

InGaAs (Cs) Photocathode, Wide Spectral Response, 51mm (2") Dia., Head-on Type For Photon Counting : Low Dark Counts, Excellent P.H.D.

Hamamatsu R3310-02 and R4330-02 are 51mm (2") diameter head-on type photomultiplier tubes having InGaAs (Cs) photocathodes, and linear focused CuBeO dynodes. The InGaAs (Cs) photocathode allows high sensitivity over a wide spectral range up to 1040nm.
The R3310-02 and the R4330-02 are selected for photon counting, and they feature low dark counts and excellent pulse height distribution (PHD) of single photoelectrons.

FEATURES
   Wide Spectral Response
      R3310-02 ........................................... 300 to 1040nm
      R4330-02 ............................................ 160 to 1040nm
   High Quantum Efficiency in IR ...........0.25% at 1µm
   Fast Rise Time ......................................3.0ns at 1500V
   Excellent Single Photoelectron
      Pulse Height Distribution ........................... Peak to Valley Ratio 2.3 (at –20°C)
   Low Dark Counts ....................... 30cps Typ. (at –20°C)

APPLICATIONS
● Raman Spectroscopy
● Fluorescent Spectroscopy
● Astrophysical Measurement
● Laser Detection