The John D. Fox laboratory operates a two-stage accelerator comprised of a 9~MV Super-FN tandem van-de-Graaff accelerator and an 8~MV superconducting linear accelerator (LINAC). The Super-FN tandem is injected by either a NEC SNICS-II cesium sputter ion source, for most beams created from solid chemicals, or an NEC rf-discharge source for beams generated from gaseous materials, most importantly 3He and 4He. Among the beams available from the sputter source is the radioactive isotope 14C.

A negative beam enters the TANDEM on the Low-Energy (LE) end, and is accelerated towards the High-Energy (HE) end by a voltage potential generated by the van-de-Graff generator consisting of two rotating chains. At the midpoint of the TANDEM, the negative beam strikes a stripper foil which ``strips'' it of electrons, causing the beam to become positive and carry on into the rest of the lab.

Beam Tandem Current Stage 2 Stage 3 Stage 4
2H 8.7 MeV/u
3He 8.7 MeV/u 12.2 MeV/u 13.5 MeV/u
6Li 5.8 MeV/u 9.1 MeV/u 10.5 MeV/u
16O 3.8 MeV/u 7.8 MeV/u 8.8 MeV/u 10.2 MeV/u 10.7 MeV/u
24Mg 2.9 MeV/u 6.4 MeV/u 7.4 MeV/u 8.8 MeV/u 9.5 MeV/u
32S 2.4 MeV/u 5.6 MeV/u 6.4 MeV/u 7.9 MeV/u 8.8 MeV/u
40Ca 2.2 MeV/u 4.7 MeV/u 5.5 MeV/u 6.9 MeV/u 7.9 MeV/u