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R1464 Datasheet(PDF) 2 Page - Hamamatsu Corporation |
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R1464 Datasheet(HTML) 2 Page - Hamamatsu Corporation |
2 / 4 page Figure 1: Typical Spectral Response TPMHB0536EA PHOTOMULTIPLIER TUBE R1464 CHARACTERISTICS (at 25 °C) Parameter Min. Unit Anode Sensitivity (Note 2) Cathode Sensitivity Gain (Note 2) Anode Dark Current (Note 2) ENI (Equivalent Noise Input) (Note 6) Time Response A/lm A/W A/W A/W µA/lm mA/W mA/W mA/W % — — nA W ns ns 30 — — — 80 — — — — 0.15 — — — — — — — — — — — — — — — 20 — — — Max. Typ. 120 4.9 × 104 5.1 × 104 1.9 × 104 120 49 51 19 19 0.2 1 × 106 4 7 × 10-16 2.5 27 Luminous (Note 3) Radiant at 350nm at 420nm at 633nm Luminous (Note 4) Radiant at 350nm at 420nm at 633nm Quantum Efficiency at 290nm Red/White Ratio (Note 5) After 30 minute storage in the dark Anode Pulse Rise Time (Note 2, 7) Electron Transit Time (Note 2, 8) NOTES 1: Averaged over any interval of 30 seconds maximum. 2: The Voltage distribution ratio is shown in Table 1 below. 3: The light source is a tungsten filament lamp operated at a distribution tem- perature of 2856K. The light input is 0.1 micro-lumen. 4: Under the same conditions as Note 3 except that the light input is 10-2 lumen and 150 volts are applied between cathode and all other electrode connected together as anode. 5: Red/White Ratio is 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 con- ditions as Note 4. 6: ENI is an indication of photon limited signal-to-noise ratio. It refers to the amount of light in watts to produce a signal-to-noise ratio in unity in the output of a photomultiplier tube. In this catalog the value of peak wave- length is described. ENI is given by the following formula: where q = Elementary charge (1.60 × 10-19 coulomb) ldb = PMT anode dark current (after 30 minute storage) in amperes G = PMT gain ∆f = Bandwidth of the system in hertz. In this catalog, 1 Hz bandwidth is used. S = Anode radiant sensitivity in amperes per watt at the wavelength of peak response. 7: 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. 8: The electron transit time is the interval between the arrival of a delta func- tion light pulse at the entrance window of the tube and the time the output pulse reaches the peak amplitude. In measurement the entire photoca- thode is illuminated. Supply Voltage: 1000Vdc, K: Cathode, Dy: Dynode, P: Anode Table 1: VOLTAGE DISTRIBUTION RATIO Electrodes Distribution Ratio K Dy1 1.5 Dy2 1 Dy3 1 Dy4 1 Dy5 1 Dy6 1 Dy7 1 Dy8 1 Dy9 11 1 Dy10 P Figure 2: Anode Sensitivity and Gain Characteristics TPMHB0537EA ENI = 2q•ldb•G• ∆f S 100 10 1 0.1 0.01 200 400 600 800 1000 WAVELENGTH (nm) CATHODE RADIANT SENSITIVITY QUANTUM EFFICIENCY 104 103 102 101 100 10-1 10-2 107 106 105 104 103 102 101 200 300 700 1000 500 1500 SUPPLY VOLTAGE (V) |
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