Microfocus x-ray tubes
Microfocus tubes have been used to refine image quality by providing the smallest focal spot size and enabling the magnification factor to increase thus increasing visible resolution. Microfocus and Micro CT systems provide reliable resolution as low as 10 microns. As you know from the inverse square law and focal spot size discussions earlier, the smaller the focal spot to less area surface is available to boil off electrons. The result is that your tube current is limited because your filament current is limited.
If you have ever experienced or experimented with an adjustable power supply connected to an incandescent light bulb, you know that the light can be driven brighter and brighter as current increase until the point that the light bulbs filament will burn up. The same concept applies to the x-ray tube filament. So there are physical limitations to developing a filament that is sized in the micron range.
We supply Thermo Fisher, Hamamatsu and Canon’s microfocus x-ray tubes, please contact us for more information.
Thermo Fisher Micro Focus X-ray Generator Thermo Fisher X-Ray Source Product Family Catalogue Model KV mA Spot Size(mm) Max Rating Target Angle(°) Data Sheet PXS5-822 80 0.178 0.015 8W 34 (Cone beam) PXS5-925 90 0.178 0.007(4W) 0.008(9W) 8W 40 (Cone beam) PXS5-925RR 90 0.178 0.009(4W) 0.014(9W) 8W 40 (Cone beam) PXS5-926 90 0.178 0.005(4W) 0.007(4W) 0.009(8W) 8W 45 (Cone beam) PXS5-927 90 0.178 0.005(4W) 0.009(8W) 8W 45 (Cone beam) PXS5-928 90 0.16 0.0045(4W) 8W 108 (Cone beam) PXS15-WB 110 0.25 0.007(4W) 25W 125 (Cone beam) PXS-15NB 110 0.25 0.005(4W) 25W 90 (Cone beam) PXS10 130 0.356 / 0.5 0.007(4W) 0.010(8W) 0.022(16W) 0.048(32W) 0.060(40W) 0.100(65W) 16W / 40W / 65W 53 (Cone beam)
Hamamatsu MicroFocus X-ray Generator Model KV mA Spot Size(mm) Max Rating Target Angle(°) Data Sheet L9421-02 90 0.2 0.007 8W 39 (Cone beam) L10321 100 0.2 0.005 to 0.03 20W 118 (Cone beam) L9631 110 0.8 0.015 50W 62 (Cone beam) L12531 110 0.2 0.002 16W 120 (Cone beam) L9181-02 130 0.3 0.008 39W 45 (Cone beam) L9181-05 130 0.3 0.016 to 0.05 39W 100 (Cone beam) L11091 160 0.2 0.002 32W 120 (Cone beam)
Canon Micro Focus X-ray Generator Model KV mA Spot Size(mm) Max Rating Target Angle(°) Data Sheet G-311MH-D 110 0.1 0.004 10W 168 (Cone beam) G-311ML-D 110 0.1 0.004 10W G-311VH-D 110 0.3 0.004 30W G-511VL-D 110 0.1 0.002 10W 168 (Cone beam)
Spellman Micro Focus X-ray Generator Model KV mA Spot Size(mm) Max Rating Target Angle(°) Data Sheet uXRB130P65 130 0.5 0.007 16W 53 (Cone beam)
