| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| secondary electron emission | 0.41 | 0.4 | 1022 | 66 | 27 |
| secondary | 0.61 | 0.8 | 7827 | 99 | 9 |
| electron | 1.85 | 0.4 | 9780 | 64 | 8 |
| emission | 1.36 | 1 | 8915 | 86 | 8 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| secondary electron emission | 0.82 | 1 | 5162 | 75 |
| secondary electron emission coefficient | 0.23 | 0.4 | 6604 | 53 |
| secondary electron emission coefficient table | 0.35 | 1 | 8297 | 60 |
| secondary electron emission yield | 1.93 | 0.7 | 7291 | 79 |
| secondary electron emission from solids | 0.01 | 0.1 | 8262 | 19 |
| secondary electron emission of metals | 0.51 | 0.3 | 8021 | 33 |
| secondary electron emission at the cathode | 0.63 | 0.3 | 6992 | 38 |
| secondary electron emission coefficient air | 0.37 | 0.1 | 9431 | 57 |
| secondary electron emission for air | 0.8 | 0.9 | 4036 | 6 |
| secondary electron emission studies | 1.6 | 0.3 | 2035 | 90 |
| secondary electron emission properties | 1 | 0.4 | 4194 | 84 |
| secondary electron emission from insulators | 0.08 | 0.2 | 9201 | 63 |
| secondary electron emission of water surface | 1.31 | 0.2 | 8354 | 84 |
| ion induced secondary electron emission | 1.12 | 0.9 | 8167 | 49 |
