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.
Basic technical characteristics
|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|