Micro PMT assembly is a high sensitivity photosensor that combines a micro PMT with a voltage divider circuit. This assembly can be installed in extremely narrow spaces due to their small size.
|Description / Value||Unit|
|Spectral response||300 nm to 920 nm||nm|
|Peak sensitivity wavelength||630||nm|
|Photocathode||Material||Extended red multialkali||-|
|Effective area||3(X) × 1(Y)||mm|
|Window material||Borosilicate glass||-|
|Dynode number of stages||12||-|
|Supply voltage||Between anode
|Average output signal current||5||µA|
|Red / White ratio||Typ.||0.45||-|
|Radiant sensitivity(*1)||Typ.||1.5 × 104||A/W|
|Time response||Rise time||Typ.||1.2||ns|
|Gain(*2)||Typ.||2.5 × 105||-|
|Operating ambient temperature(*5)||+5 to +50||℃|
|Storage temperature(*5)||-20 to +50||℃|
*1 Measured at the peak sensitivity wavelength
*2 Supply Voltage: -900 V
*3 After 30 minutes storage in darkness
*4 T.T.S.=Transit Time Spread (FWHM)
*5 No condensation
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