| Transmission
Functions - History |
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| So
why do we bother so much about it now? |
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| Older
machines (Mk II’s) |
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| One
or two lens modes, usually twin anode sources |
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| TF
approximated to E-0.5 |
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| l approximated to E0.5 |
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| Thus from |
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| The
terms l and G effectively cancel out leaving only
s |
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| ESCALAB
220i-XL with Magnetic lens and small spot |
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| monochromated source |
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| Was this
still true? |
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