Hamamatsu News 1 / 2020

27 News 2020 Vol.1 The H14870 is a 16-channel photon counting head with light input openings arranged at an interval equal to the well- to-well spacing for 96-well microplates. The H14870 allows simultaneous mea­ surements of 16 wells and so shortens the measurement time (improves the throughput). 4×4 Multichannel Photon Counting Head for 96 Well Microplate Reader Photon Counting Head H14870 New ELECTRON TUBE PRODUCTS Features „ „ 16 channels (4 × 4 multichannel) „ „ Effective area:  5 mm/channel „ „ Low voltage (+5 V) operation „ „ High-speed data transfer: LVDS output Application „ „ Microplate reader Specifications Parameter Specification Unit Spectral response range 300 to 650 nm Dark count (1 ch) 50 s -1 Count linearity 3 × 10 6 s -1 Pulse pair resolution 33 ns Count uniformity between each channel 1:2 – Cross-talk 0.05 % 74 mm 74 mm 53 mm Count sensitivity 10 6 10 5 10 4 10 3 200 300 400 500 Wavelength (nm) Count sensitivity (s -1 ·pW -1 ) 600 700 800 Dark current (A) 10 -4 -3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0 0.5 10 -3 10 -2 10 -1 1 Vacuum level (Pa) F14844 Conventional type MCP gain 10 5 ×10 -7