Stabilized light sources for PMT
LED light sources mainly designed for adjusting the sensitivity of PMT(photomultiplier tubes) and PMT modules. The L11494 series is a plate type designed to be placed on a sample stage. It contains a photodiode to monitor and control the LED emission intensity so that they constantly output stable light of approximately 1 pW.
|Peak emission wavelength||428||465||522||660||nm|
|Spectral half width||65||26||35||30||nm|
|Light emission power||High: 1±0.5, Low: 0.01±0.005 *1||pW|
|Emission stability (0 °C to +50 °C)||±2 Max.||%|
|Battery||Button battery SR41 or equivalent||-|
|Battery service life||Min.||10||24||h|
|Operating ambient temperature / humidity *2||0 °C to +50 °C / below 85 %||-|
|Storage temperature / humidity *2||-20 °C to +60 °C / below 85 %||-|
*1 Adjusted by using an 8 mm effective diameter photon counting head placed in direct contact with the L11494.
*2 No condensation
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