lnformation furnished by HAMAMATSU is believed to be reliabIe. However, no responsibility is assumed for possibIe inaccuracies or ommissions. Specifications are
subject to change without notice. No patent right are granted to any of the circuits described herein.
1997 Hamamatsu Photonics K.K.
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
PHOTOMULTlPLlER TUBES
R3310-02, R4330-02
InGaAs (Cs) Photocathode, Wide Spectral Response, 51mm (2") Dia., Head-on Type
For Photon Counting : Low Dark Counts, Excellent P.H.D.
GENERAL
FEATURES
Wide Spectral Response
R3310-02 ...........................................
R4330-02 ............................................
Parameter
Description/Value
Unit
Spectral Response
R3310-02
R4330-02
Hamamatsu R3310-02 and R4330-02 are 51mm (2") diameter head-on type photomultiplier tubes having InGaAs (Cs) photocath-
odes, 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.
Wavelength of Maximum Response
Photocathode
MateriaI
Minimum Effective Area
Mode
300 to 1040
160 to 1040
400
nm
nm
nm
R3310-02
R4330-02
Dynode
Borosilicate glass (K-free)
Synthetic silica glass
Structure
Number of Stages
Approx. 2
Approx. 3
21-pin Base
E678–21C (Supplied)
pF
pF
Anode to Last Dynode
Anode to All Other Electrodes
Base
InGaAs(Cs)
10 10
Opaque
Secondary Emitting Surface
Cu-BeO
Linear Focused
10
mm
Window Material
Weight
g
g
110
93
R3310-02
R4330-02
Direct Interelectrode Capacitances
E678–21D (Option)
SuitabIe Socket
High Quantum Efficiency in IR ...........
Fast Rise Time ......................................
Excellent Single Photoelectron
Pulse Height Distribution
........................... Peak to Valley Ratio 2.3 (at –20 )
Low Dark Counts ....................... 30cps Typ. (at –20 )
APPLICATIONS
Raman Spectroscopy
Fluorescent Spectroscopy
Astrophysical Measurement
Laser Detection
0.25% at 1 m
3.0ns at 1500V
Figure 1:
Typical Spectral Response
300 to 1040nm
160 to 1040nm
TPMHB0051EA
100
300
500
700
900
WAVELENGTH (nm)
10
–2
C
Q
1100
10
–1
10
0
10
1
10
2
QUANTUM
EFFICIENCY
R4330-02
R3310-02
R3310-02
R4330-02
CATHODE
RADIANT
SENSITIVITY