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General Information
 For spectroscopy experiments in the ultraviolet-visible-near infrared region of the spectrum, a photomultiplier tube (PMT) is perfect for the detection of light. PMTs can be used from 180 to 900 nanometers. A PMT is extremely sensitive, has a wide dynamic range, allowing for the measurement of very low levels of light, as well as high.
PTI is unique in offering both digital and analog detection. Digital (photon counting) detection is ideal for low light levels, while analog is more suitable for stronger signals.
PTI offers your choice of 2 PMTs
R 1527 |
| Spectral Response |
185 to 680 nm |
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| Photocathode Material |
Low noise bialkali |
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| Effective Area of PMT |
8 x 24 mm |
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| Supply Voltage |
1250 V dc |
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Cathode Sensitivity
Quantum Efficiency at 300 nm (Peak)
Luminous
Radiant 400 nm (Peak) |
19 % typ.
60 µA/lm typ.
60 mA/W typ. |
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Anode Sensitivity
Luminous
Radiant 400 nm |
400 A/lm typ.
4 x 105 A/W typ. |
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| Gain |
6.7 x 106 typ. |
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Anode Dark Current
(After 30minute Storage in the darkness) |
0.1 nA |
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Click image to enlarge |
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R928 |
| Spectral Response |
185 to 900 nm |
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| Photocathode Material |
Multialkali |
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| Effective Area of PMT |
8 x 24 mm |
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| Supply Voltage |
1250 V dc |
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Cathode Sensitivity
Quantum Efficiency at 260 nm (Peak)
Luminous
Radiant 400 nm |
25.4 % typ.
250 µA/lm typ.
74 mA/W typ. |
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Anode Sensitivity
Luminous
Radiant 400 nm |
2500 A/lm typ.
7.4 x 105 A/W typ. |
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| Gain |
1 x 107 typ. |
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Anode Dark Current
(After 30minute Storage in the darkness) |
3 nA |
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Click image to enlarge |
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