13mm dia., Head-on type, Low noise bialkali photocathode (Effective area : 10 mm dia./Spectral response : 300 to 650 nm) Photon counting type of R2557
|Tube Size||Dia.13 mm|
|Photocathode Area Shape||Round|
|Photocathode Area Size||Dia.10 mm|
|Wavelength (Short)||300 nm|
|Wavelength (Long)||650 nm|
|Wavelength (Peak)||375 nm|
|Spectral Response Curve Code||402K|
|Photocathode Material||Low noise bialkali|
|Window Material||Borosilicate glass|
|[Max. Rating] Anode to Cathode Voltage||1500 V|
|[Max. Rating] Average Anode Current||0.03 mA|
|Anode to Cathode Supply Voltage||1250 V|
|[Cathode] Luminous Sensitivity Min.||25 μA/lm|
|[Cathode] Luminous Sensitivity Typ.||40 μA/lm|
|[Cathode] Blue Sensitivity Index (CS 5-58) Typ.||5.5|
|[Cathode] Radiant Sensitivity Typ.||50 mA/W|
|[Anode] Luminous Sensitivity Min.||50 A/lm|
|[Anode] Luminous Sensitivity Typ.||200 A/lm|
|[Anode] Radiant Sensitivity Typ.||2.5 x 105 A/W|
|[Anode] Gain Typ.||5.0 x 106|
|[Anode] Dark Current (after 30min.) Typ.||0.5 nA|
|[Anode] Dark Current (after 30min.) Max.||4 nA|
|[Time Response] Rise Time Typ.||2.2 ns|
|[Time Response] Transit Time Typ.||22 ns|
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