In 1975, John H. Beynon was appointed the Royal Society Research Professor and established the Mass Spectrometry Research Unit at Swansea University (at that time known as the University College of Swansea). In 1986, Dai Games moved from Cardiff University to become the Units new Director.
In 1984, the first observation of He was made at the unit, its the same as molecular hydrogen (isolectronic molecules) except it has lots more energy 3310 kJ per mole.