A new method to measure reaction times by the use of the blocking effect of energetic particles in single crystals was applied to the 28Si(p, p′) 28Si ∗, 70Ge(p, p′) 70Ge ∗ and 72Ge(p, p′) 72Ge ∗ reactions. For germanium, reaction times of the order of 10 −17 s were observed.
Read full abstract