Number 261 (Story #3), March 6, 1996 by Phillip F. Schewe and Ben Stein BEAM CHANNELING AT 900 GEV. At accelerators, charged- particle beams are usually steered with powerful magnets. But years ago physicists discovered that a beam could also be deflected by passing it down the alleyways between the rows of atoms in a bent crystal. Recently scientists at the Tevatron Crystal Extraction Experiment succeeded in diverting the 900-GeV beam at Fermilab through a 4-cm-long crystal shaped into a 640-microradian bend. (CERN Courier, Jan/Feb 1996.)