 Aleksandr Chudakov

Aleksandr Evgenievich Chudakov (16 June 1921 – 25 January 2001, Moscow) was a Soviet Russian physicist in the field of cosmic-ray physics, known for "Chudakov Effect", the effect of decreasing ionization losses for narrow electron-positron pairs and for experimentally confirming existence of the transition radiation.He was also the chairman of the IUPAP Cosmic Ray Commission.