21. Randomly oriented nanobuds have already been demonstrated to have an extremely low work function for field electron emission . 22. The process of electron emission causing photoemission in turn causing electron emission is what provided the memory action. 23. The process of electron emission causing photoemission in turn causing electron emission is what provided the memory action. 24. Plutonium-241 is the parent isotope of the neptunium decay series, decaying to americium-241 via beta or electron emission . 25. Where V _ \ mathrm { b } is the breakdown potential in volts Secondary Electron Emission Coefficient. 26. Inelastic scattering heats up a molecule, so that in a second scattering the probability of electron emission is increased. 27. TC electron emission will occur in one of two different regimes : temperature or space charge limited current flow. 28. For one illustration of the apparent effect of surface termination on electron emission , see Figure 3 in Marchywka Effect. 29. Cold cathodes rely on field electron emission or secondary electron emission from positive ion bombardment and do not require heating. 30. The limit for the series corresponds to electron emission , where the electron has so much energy it escapes the atom.