I’ve bought this R6095 PMT tube from iRad ebay seller. It cost me about 40$ plus shipping. iRad sells it as just tube or with socket and voltage divider kit. I’ve bought the complete kit. A link to his auction: iRad
R6095 PMT from iRad
| Specifications | |
| Minimum Wavelength | 300 nm |
| Outside Diameter | 28 mm |
| Peak Wavelength | 420 nm |
| Maximum Wavelength | 650 nm |
| Viewing Direction | Head on |
| Rise Time | 4 ns |
| Photocathode Material | Bialkali |
| Window Material | Borosilicate |
| Anode Current | 0.1 mA |
| Typical Photocathode Luminous Sensitivity [µA/lm] | 95 |
| Photocathode Peak Radiant Sensitivity [A/W] | 0.088 |
| Gain | 2.1 x 10e6 |
| Max. Supply Voltage Between Anode and Cathode | 1500 VDC |
| Max. Supply Voltage Between Anode and Last Dynode | 250 VDC |
| Operating Temperature | -80 to +50 °C |
This tube could be used to make a nice scintillation probe coupling it with a 30mm diameter NaI(TI) crystal and feeding 800-900V. Yes… just 900 and you can expect a gain of 10^6. Within the box there is the datasheet of the tube plus an instruction sheet to wire the voltage divider network to the socket.
Tube plus socket and instructions