As components elute from the GC's column they are mixed with the helium ions, which then ionize the components.

It was discovered by bombarding a curium target with alpha particles (helium ions).

The Bevatron can accelerate helium ions to a fraction of the speed of light, where they'll acquire about 160 million electron volts of energy.

In contrast to other ion beams, there is no discernible sample damage due to relatively light mass of the helium ion.

Maier-Leibnitz was in the field of atomic physics, and he discovered metastable, negative helium ions, which later had applications in particle accelerators.

In 1907, Ernest Rutherford and Thomas Royds finally proved that alpha particles were indeed helium ions.

The element was first produced by bombarding curium with alpha particles (helium ions) at the University of California, Berkeley.

Curium is made by bombarding a plutonium target with alpha particles (helium ions).

Charged-particle radiation therapy can be performed with a proton beam or helium ions.

Berkelium was first made by hitting americium with alpha particles or helium ions.