Document
PHOTOMULTIPLIER TUBE
R1477-06
High Sensitivity Multialkali Photocathode (185 nm to 900 nm) 28 mm (1-1/8 Inch) Diameter, 9-stage, Side-On
FEATURES
High Cathode Sensitivity Radiant at 450nm ........................................................... 80 mA/W Luminous ...................................................................... 375 µ A/lm Quantum Efficiency at 370 nm ............................................. 24 % Wide Spectral Response ......................................... 185 to 900 nm Low Anode Dark Current ........................................ 3 nA at 1000 V (after 30 minute storage)
APPLICATIONS
UV to IR Spectrophotometers Laser Detection Systems Pollution Monitors
The R1477-06 has a high sensitivity multialkali photocathode (even higher than the R928). The spectral response covers a wide range from 185 to 900 nm with a peak response at approximately 450 nm. The R1477-06 also features the combination of high gain and low dark current. The R1477-06 is recommended for use in spectrophotometry and other low light level applications requiring super-high cathode sensitivity from the UV to the near IR regions of the spectrum.
Figure 1: Typical Spectral Response
TPMSB0182EA
GENERAL
Spectral Response Wavelength of Maximum Response Photocathode Material Minimum Effective Area Secondary Emitting Surface Dynode
Direct Interelectrode Capacitances
100
185 to 900 450 Multialkali 8 × 24 UV glass Multialkali Circular-cage 9 Approx. 4 Approx. 6 11-pin base JEDEC No. B11-88 Approx. 45 E678-11A (Option) E717-21 (Option)
nm nm — mm — — — — pF pF — g — —
CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%)
Parameter
Description/Value Unit
10
CATHODE RADIANT SENSITIVITY QUANTUM EFFICIENCY
Window Material Structure Number of Stages Anode to Last Dynode Anode to All Other Electrodes
1
0.1
Base Weight Suitable Socket Suitable Socket Assembly
0.01 100 200 300
400 500 600 700 800 900 1000
WAVELENGTH (nm)
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. 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. ©1999 Hamamatsu Photonics K.K
PHOTOMULTIPLIER TUBE R1477-06
MAXIMUM RATINGS (Absolute Maximum Values at 25°C)
Parameter Supply Voltage Between Anode and Cathode Between Anode and Last Dynode Value 1250 250 0.1 -80 to +50 Unit Vdc Vdc mA °C
NOTES
A: Averaged over any interval of 30 seconds maximum. B: The light source is a tungsten filament lamp operated at a distribution temperature of 2856K. Supply voltage is 100 volts between the cathode and all other electrodes connected together as anode. C: Red/white ratio is the quotient of the cathode current measured using a red filter (Toshiba R-68) interposed between the light source and the tube by the cathode current measured with the filter removed under the same conditions as Note B. D: The value is cathode output current when a blue filter (Corning CS 5-58 polished to 1/2 stock thickness) is interposed between the light source and the tube under the same conditions as Note B. E: Measured with the same light source as Note B and with the voltage distribution ratio shown in Table 1 below. F: Measured with the same supply voltage and voltage distribution ratio as Note E after removal of light. G: ENI is an indication of the photon-limited signal-to-noise ratio. It refers to the amount of light in watts to produce a signal-to-noise ratio of unity in the output of a photomultiplier tube. ENI = 2q•ldb•G•∆f S
Average Anode Current A Ambient Temperature
CHARACTERISTICS (at 25°C)
Parameter Luminous
B
Min. 350 — — — — — 0.25 — 1000 — — — — —
Typ. 375 40 80 62 5.0 24 0.35 1.0 2000 2.4 × 105 4.2 × 3.3 × 2.7 × 105 105 104
Max. — — — — — — — — — — — — — — 50 — — — — — —
Unit µA/lm mA/W mA/W mA/W mA/W % — µA/lm-b A/lm A/W A/W A/W A/W — nA W ns ns ns % %
at 254 nm Radiant Cathode Sensitivity Quantum Efficiency Blue D Luminous E Anode Sensitivity Radiant at 254nm at 450nm at 633nm at 852nm Gain E Anode Dark Current
F
at 450 nm at 633 nm at 852 nm at 370 nm
Red/White Ratio C
where q = Electronic charge (1.60 × 10-19 coulomb) ldb = Anode dark current (after 30 minute storage) in amperes G = Gain ∆f = Bandwidth of the system in hertz. 1 hertz is used. S = Anode radiant sensitivity in amperes per watt at the wavelength of peak response. H: The rise time is the time for the output pulse to rise from 10% to 90% of the peak amplitude when the entire photocathode is illuminated by a delta function light pulse. J: The electron transit time is the interval between the arrival of delta function light pulse at the entrance window of the tube and the time when the anode output reaches the peak amplitude. In measurement, the whole pho.