Photomultiplier tube Sapphire-2A MCP-PMT is designed for the detection and amplification of UV light in 115-360 nm wavelength range and enables operation in photon counting mode.
Structurally, Sapphire-2A MCP-PMT is a metal-glass vacuum unit with an insulating coating, containing a cesium-telluride photocathode on a magnesium fluoride substrate, a chevron stack of two microchannel plates, and a metal anode. The electrons are focused from the photocathode to the MCP input by the electrostatic lens field.
It can be used as a Cherenkov detector.
Specification
Schematic diagram
Basic technical characteristics
| Parameter, unit | Value |
|---|---|
| Spectral response range, nm | 115–360 |
| Photocathode active area diameter, mm | 15 |
| Gain at MCP voltage of 2400 V max | 106, min |
| Single electron pulse height resolution, % | 100, max |
| Peak-to-valley ratio | 10, min |
| Dark count rate density, counts/sec·cm2 | 5, max |
| Response pulse duration (FWHM), ns | 1.1 max |
| Anode current pulse rise time, ns | 0.8 max |