Some questions about ion trap?

[xylai]

Now scientists can trap one ion in the ion trap. I think this technology is very advanced. In 1986 both of Dehmelt's group and Toschek's group firstly trapped the Ba+ ion. Now after 20 years, the ion trap technology has gotten greater progress.
I have some questions. Nowadays what ions have been trapped in Lab? Has the He+ ion been trapped?

 

[DaTario]

I once have seen a "periodic table for the trappist" where one could see all the species that can be trapped (I guess the method was the gas buffer).

May be some googling will help. I know that In and Be were trapped nicely through the use of a Paul Trap.

Best wishes

DaTario

 

[xylai]

Thank you for your kind advice.