slides - CASA
slides - CASA
slides - CASA
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Gain/attenuation (m -1 )<br />
10 5<br />
10 4<br />
10 3<br />
100<br />
Gain and attenuation peak at v g=0<br />
Gain<br />
Gain ∝ ( 1 v ) g<br />
1<br />
3 Attenuation ∝1 vg Attenuation<br />
10<br />
20 40 60 80 100 120 140 160<br />
Electron energy (keV)