Hamamatsu R1527 features high cathode sensitivity, high current amplification, and low dark current. It is useful for fluorescence, chemiluminescence, Raman spectroscopy, and low light level detection.
The Hamamatsu R1527 and R1527P photomultiplier tubes are designed for photon counting applications with high cathode sensitivity and low dark current. The R1527P variant is optimized for photon counting with low dark counts. These tubes are suitable for fluorescence, chemiluminescence, Raman spectroscopy, and low light level detection. Key specifications include spectral response from 185 to 680 nm, gain up to 6.7x10^8, and transit time spread of 1.2 ns. The tubes feature a 9-stage design with a low noise bialkali photocathode and circular-cage structure. They are available with 11-pin base and compatible sockets.
| Spectral Response | 185 to 680 nm |
|---|---|
| Cathode Sensitivity (Luminous) | 604 A/lm |
| Dark Current | 0.1 nA |
| Dark Counts (R1527P) | 10 cps |
| Wavelength of Maximum Response | 400 nm |
| Photocathode Material | Low noise bialkali |
| Minimum Effective Area | 8X24 mm |
| Window Material | UV glass |
| Dynode | 83 |
| Structure | Circular-cage |
| Number of Stages | 9 |
| Direct Interelectrode Capacitances (Anode to Last Dynode) | 4 pF |
| Base | 11-pin base |
| JEDEC No. | B11-88 |
| Weight | 45 g |
| Suitable Socket | E678-11A (option) |
| Suitable Socket Assembly | E717-21 (option) |
| Supply Voltage (Anode to Cathode) | 1250 Vdc |
| Average Anode Current | 0.1 mA |
| Ambient Temperature | -80 to +50 c |
| Cathode Sensitivity (Quantum Efficiency at 300nm) | 19 % |
| Anode Dark Current (After 30min Storage) | 0.5 nA |
| Anode Dark Counts (R1527P) | 10 cps |
| Anode Pulse Rise Time | 2.2 ns |
| Electron Transit Time | 22 ns |
| Transit Time Spread (TTS) | 1.2 ns |
| Current Hysteresis | 0.4 % |
| Voltage Hysteresis | 1.0 % |
The spectral response range is 185 to 680 nm.
The dark current for the R1527P variant is 0.5 nA.
The transit time spread is 1.2 ns.