. 2014 Apr 23;86(9):4102–4109. doi: 10.1021/ac5008046

Table 1. Six Geometries Used in the Study of the Ion Sponge^a.

trap geometry	r₀ (mm)	z₀ (mm)	t (mm)	a (mm)
I	2.62	2.75	0.76	0
II	3.88	3.75	0.25	0.13
III	2.88	2.75	0.25	0.13
IV	3.88	3.20	0.25	0.13
V	3.88	6.40	0.25	0.13
VI	3.88	3.75	0.25	0

See Figure S1, Supporting Information, for definition of dimensions.

Table 1. Six Geometries Used in the Study of the Ion Spongea.