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LaB6 Lanthanum Hexaboride Filaments

Kimball Physics single crystal lanthanum hexaboride (LaB6) cathodes are available for most makes of electron microscopes and other electron beam instruments.

All prices exclude VAT.
Name & Code
Grouped product items
Code & DescriptionAvailabilityPriceQty
AGA0692-9015
LaB6 Filament 90/15 on AEI Base for Camscan, Cameca, Electroscan, Cambridge Instruments, LEO/Leica/Zeiss
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AGA0692-9020
LaB6 Filament 90/20 on AEI Base for Camscan, Cameca, Electroscan, Cambridge Instruments, LEO/Leica/Zeiss
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AGA0692-6006
LaB6 Filament 60/06 on AEI Base for Camscan, Cameca, Electroscan, Cambridge Instruments, LEO/Leica/Zeiss
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AGA0690-9015
LaB6 Filament 90/15 on FEI/Philips Base (not XL30)
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AGA0690-9020
LaB6 Filament 90/20 on FEI/Philips Base (not XL30)
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AGA0690-6006
LaB6 Filament 60/06 on FEI/Philips Base (not XL30)
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AGA0691-9020
LaB6 Filament 90/20 on FEI XL30 Base
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AGA0693-9015
LaB6 Filament 90/15 on JEOL K Base
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AGA0693-9020
LaB6 Filament 90/20 on JEOL K Base
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AGA0693-6006
LaB6 Filament 60/06 for JEOL K Base
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AGA0694-9015
LaB6 Filament 90/15 on Zeiss Base (please specify make & model)
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AGA0694-9020
LaB6 Filament 90/20 on Zeiss Base (please specify make & model)
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AGA0694-6006
LaB6 Filament 60/06 on Zeiss Base (please specify make & model)
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AGA0695-9015
LaB6 Filament 90/15 on ISI/ABT/Topcon two pin Base
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AGA0695-9020
LaB6 Filament 90/20 on ISI/ABT/Topcon two pin Base
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AGA0695-6006
LaB6 Filament 60/06 on ISI/ABT/Topcon two pin Base
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AGA0698-9015
LaB6 Filament 90/15 on Hitachi S Base
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AGA0698-9020
LaB6 Filament 90/20 on Hitachi S Base
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AGA0698-6006
LaB6 Filament 60/06 on Hitachi S Base
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Product Description
  • High current, high brightness, single crystal
  • Emission current densities up to 30A/cm2
  • Range of emission surface sizes
  • Long lifetimes
  • Operating pressure <10-7 torr

Kimball Physics single crystal lanthanum hexaboride (LaB6) cathodes are available for most makes of electron microscopes and other electron beam instruments where a suitable gun vacuum in the region of 10-7 Torr is attainable. The filament heater can then be driven by the normal power supply of the microscope.

Brightness above 1 x 106 Amp/cm2 steradian is achievable.

For SEM applications, the higher brightness provides better imaging resolution and improved efficiency for microanalysis. For TEM, the low energy spread of the LaB6 filament is particularly advantageous for high resolution imaging. Alternatively, LaB6 filaments may be used where a long filament life is important; lifetimes in excess of six months continuous operation are regularly achieved.

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