FAAST X-ray source

Further information

One of the main limitations of conventional microfocus x-ray source is related to the upper limit on the power density before the solid metal evaporates. This is the well-known bottleneck if you want to achieve higher brightness in a laboratory x-ray source.

The FAAST™ microfocus x-ray source solves this problem in an elegant way. Instead of only one large metal x-ray emitter the FAAST™ source has several small and locally separated emitters that are embedded into a diamond substrate. This enables a highly localized, large thermal gradient for each emitter and the electron power densities can substantially be increased (e.g. 4x for Cu and even greater for metals with lower thermal conductivity).

• provides linear accumulation of x-rays to even further maximize brightness along very low take-off angles.
• enables the use of many elements previously considered unfeasible as x-ray source materials (thereby enabling access to new x-ray spectra).
• empowers the incorporation of multiple microstructured regions with different materials for rapid switching between different x-ray energies within the same source.

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