[eps][pdf] |
[eps][pdf] |
[eps][pdf] |
[eps][pdf] |
[eps][pdf] |
| trying to put electrons on thin film |
[eps][pdf] |
[eps][pdf] |
| detail: first try on thin film |
[eps][pdf] |
[eps][pdf] |
| detail: when the filament died |
[eps][pdf] |
[eps][pdf] |
| filling the cell |
[eps][pdf] |
[eps][pdf] |