R4220_15 Datasheet, PDF (1/4 Pages) Hamamatsu Corporation – PHOTOMULTIPLIER TUBES

PHOTOMULTIPLIER TUBES
R4220
R4220P (For Photon Counting)
Very High Cathode Sensitivity with Low Noise Photocathode
FEATURES
GSpectral Response .................................. 185 nm to 710 nm
GHigh Cathode Sensitivity
Luminous ......................................................... 100 µA/lm
Radiant at 410 nm ............................................. 70 mA/W
GHigh Anode Sensitivity (at 1000 V)
Luminous ......................................................... 1200 A/lm
Radiant at 410 nm ...................................... 8.4 × 10⁵ A/W
GLow Dark Current ....................................................... 0.2 nA
GLow Dark Counts (R4220P) ......................................... 10 s^-1
APPLICATIONS
GFluorescence Spectrometer
GChemiluminescence Detection
GRaman Spectroscopy
GLow Light Level Ditection
SPECIFICATIONS
GENERAL
Parameter
Description / Value Unit
Spectral Response
185 to 710
nm
Wavelength of Maximum Response
410
nm
Photocathode
MateriaI
Low noise bialkali
Minimum Effective Area
8 24
mm
Window Material
UV glass
Dynode
Secondary Emitting Surface
Structure
Number of Stages
Low noise bialkali
Circular-cage
9
Direct Interelectrode Capacitances
Anode to Last Dynode
4
pF
Anode to All Other Electrodes
6
pF
Base
11-pin base
JEDEC No. B11-88
Weight
45
g
Operating Ambient Temperature
-30 to +50
°C
Storage Temperature
-30 to +50
°C
SuitabIe Socket
E678–11A (Sold Separately)
SuitabIe Socket Assembly
E717–63 (Sold Separately)
E717–74 (Sold Separately)
Figure 1: Typical Spectral Response
TPMSB0010EA
100
10
CATHODE
RADIANT
SENSITIVITY
1
QUANTUM
EFFICIENCY
0.1
0.01
100 200 300 400 500 600 700 800
WAVELENGTH (nm)
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Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are
subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2010 Hamamatsu Photonics K.K.