ITT F4000 (S5) Ultra-Fast Vacuum Biplanar Phototube
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This is an ITT model 4000 (S5) vacuum biplanar phototube for applications that require fast response monitoring of high intensity radiation. With a rise time of less than 500 picoseconds, detailed examination across nine orders of magnitude can be made in the gigahertz range. When paired with an appropriate scintillator, the F4000 is well suited to monitoring short bursts of gamma radiation.
Specifications
Major Diameter |
57.2 mm |
|---|---|
Effective Photocathode Diameter |
44.5 mm |
Effective Photocathode Area |
1548 mm2 |
Rise Time |
500 picoseconds |
Length |
48.3 mm |
Anode Mesh Openings per 25.4 mm |
20 |
Anode Mesh Optical Transmission |
80 % |
Resistance of Anode Mesh |
0.5 Ω |
Photocathode Spectral Response |
S-5 |
Typical Operating Voltage |
2.5 kV |
Typical Photocathode Luminous Sensitivity [µA/lm] |
30 |
Photocathode Peak Radiant Sensitivity [A/W] |
0.04 |
Maximum Peak Current Output |
5 |
Maximum Average Current Output |
75 μA |
Deviation From Linearity |
10 % |
Interelectrode Capacitance |
1 pF |
Maximum Dark Current |
5 nA |
Weight |
63.8 grams |
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