The turbomolecular pump has a leak somewhere which prevents it from achieving a vacuum at 24000 nbar (40 ish nbar is needed, otherwise the machine doesn't allow the beryllium to achieve a critical state as it will simply burn through and the image captured will be of terrible quality).
There are also some minor issues, such as the poor condition of the pass-through screen objects-to-be-analyzed are placed on but shouldn't be an issue.
