Creation and enrichment of non-standard isotopes

Factual Questions
1

Many elements exist primarily in one isotopic form. It is often possible to enrich the percentage of a naturally occurring minor isotope in a sample of some compound. It is also possible to create some isotopes by various processes (cyclotron, etc.) I know how enrichment or creation works for some isotopes, such as [sup]2[/sup]H, [sup]3[/sup]H, and [sup]99[/sup]Tc (moo), but I have no clue how it’s done for isotopes of other elements. Wikipedia doesn’t say. I know that many non-standard isotopes are used for all sorts of processes; [sup]11[/sup]C in PET imagine, [sup]15[/sup]N for NMR spectroscopy, and I’d like to know where they come from.

If any Dopers know a resource that has information for the whole periodic table, that would be wonderful. If not, snippets that you know off the top of your head would be appreciated.

2

A CALUTRON or Mass Spectrometer is used to separate isotopes of many elements.
See Wikipedia and/or search for “calutron”.

3

the isotope is a different weight. compounds of isotopes can be separated by diffusion, reaction kinetics, inertia and gravity.

4

A lot of isotopes are produced in small research reactor like the TRIGA. Here is a recent article on research reactors.

http://depletedcranium.com/the-critical-shortage-of-non-power-reactors/