XP2020

Photomultiplier 12-stage 51mm (2"), Round tube Application Energy physics Features Very Fast Very low noise Good linearity XP2020 www.DataSheet4U.com Typical spectral Description Window material Photocathode Refr. Index at 420nm Multiplier structure Borosilicate glass Bi-alkali 1.48 Linear focused Sk (mA/W) 100 Photocathode characteristics Spectral range : Maximum sensitivity at : Sensitivity : Luminous : Blue * : Radiant, at 420nm Min Typ 270-650 420 70 10 80 Max Unit nm nm µA/lm µA/lmf mA/W 10 7.5 1 Characteristics with voltage divider A Gain slope (vs supp. Volt., log/log) For a gain of Supply voltage * Anode dark current * Background noise * Single electron spectrum resolution Peak to valley ratio Pulse amplitude resolution for 137Cs Gain halved for a magnetic field of : Perpendicular to axis "n" : Parallel to axis "n" : Min Typ 9 3x10 7 Max Unit V 1750 2000 10 900 70 2.5 7.2 0.15 0.12 2600 100 2500 V nA cps % % mT mT 0,1 100 200 300 400 500 600 Wavelength (nm) 700 800 Gain 1E+8 Typical gain curve A 1E+7 For a supply voltage of : 2000V Linearity (2%) of anode current up to : Anode pulse : Rise time : Duration at half height : Transit Time : Min Typ 25 1.6 3.7 28 Max Unit mA ns ns ns 1E+6 1E+5 C Recommended Voltage Divider 1E+4 1000 Type A for maximum gain K 1.2 G 2.8 D1 1.2 D2 1.8 D3 1 D4 1 D5 1 D6 1 D7 1 D8 1 D9 1 D10 1 1500 2000 Vht(V) 2500 3000 D11 1 D12 1 A (total : 17) Type C for linearity K 1.2 G 2.8 D1 1.2 D2 1.8 D3 1 D4 1 D5 ...