Scientists have elucidated a surprising novel mechanism of cascading electron emission caused by the Coulombic interaction between highly excited atoms.
Tohoku University research could have implications for radiation therapy. Physical chemist Kiyoshi Ueda’s team used a free electron laser (FEL) at Japan’s SPring-8 Compact SASE Source test accelerator to investigate how electrons are ‘knocked out’ of neon atom clusters. Intense extreme ultraviolet FEL pulses were directed at the clusters and the resultant energy distribution of electrons knocked out of the clusters was measured using a ‘velocity map imaging spectrometer’.
Electrons inside a material absorb energy when the material is exposed to light. Normally, this energy is used to ‘knock electrons out’ of the material...
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