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MEMSnet Home: MEMS-Talk: voltage of kEv FIB particle?
voltage of kEv FIB particle?
2014-02-17
Nathan McCorkle
voltage of kEv FIB particle?
Nathan McCorkle
2014-02-17
I'm working on an x-ray detector to go into the FIB, and I'm wondering
what voltage would be induced by a particle.

Imagine I placed the + probe of a multimeter into the FIB chamber,
connected the - probe to the chamber wall, then targeted the + probe
with the FIB.

I believe one gallium ion would induce a current of one electron, but
I'm not sure the complete current would be realized in the chamber
wall, as some of the enegy converts to radiation (xrays) and some
electron sputter off (secondary emission).

Basically I'm thinking of how much I might need to protect my
electronics, or if I want to measure beam current, what voltage my
components would need to be to resist degradation.

--
-Nathan
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