Photon counting head H11890-01

Photon counting head The H11890 series is a compact photon counting head consisting of a metal package photomultiplier tube along with a high-speed photon counting circuit and a high-voltage power supply unit. The high voltage supply for the photomultiplier tube and the discriminator level is preset to optimum values, allowing photon counting measurement by just connecting to a PC. Photon counting measurement data transfer, counter gate time, and other necessary adjustments are controlled by commands from the PC through the USB interface. Click here to view a full product spec sheet PDF. Go to Accessories for PMT modules. Product Specifications Device types PMT module Detector series Multialkali PMT Spectral response range 230 to 870 nm Peak wavelength (typ.) 400 nm Peak count sensitivity (typ), 3.0 x 10^4 Effective photosensitive area 8 mm dia. Package Enclosed module Cooling Non-cooled Output type Digitalized Count linearity 5.0 x 106 s-1 Dark count (typ.) 600 s-1 Pulse-pair resolution 20 ns Current consumption (typ.) 50 mA Measurement condition Ta=25 ℃ Additional information: Technical note for PMT