R877 is a head-on photomultiplier tube with a 111 mm diameter bialkali photocathode for scintillation counting, featuring a 10-stage dynode structure and a 14-pin base conforming to JEDEC No. B14-38. The tube has a spectral response from 300 nm to 650 nm with maximum response at 420 nm, an anode gain of 4.4 × 10⁵, and an anode dark current of up to 50 nA after 30 minutes in darkness. It operates within an ambient temperature range of -30 °C to +50 °C and supports a maximum supply voltage of 1500 V between anode and cathode. The tube requires the E678-14W socket for connection. Its dimensions include a maximum housing diameter of 171 mm and a height of 133.0 mm. The window is made of borosilicate glass.
133mm dia., Head-on type, Bialkali photocathode (Effective area : 111 mm dia./Spectral response : 300 nm to 650 nm)
| Hamamatsu Photonics Europe | |
|---|---|
| Product Category | Photomultiplier Tubes |
| Product Number | R877 |
| Product Name | Photomultiplier tube (Tube alone), Head-on type |
| Photomultiplier Type | End-on |
| Active Area Diameter or Length | 111 mm (4.37 inch) |
| Active Area Height | 111 mm (4.37 inch) |
| Number of Dynodes | 10 |
