Observation of focusing of 400 GeV/ c proton beam with the help of bent crystals
W. Scandale (Laboratoire de l'Accelerateur Lineaire (LAL), Universite Paris Sud Orsay, Orsay, France, INFN Sezione di Roma, Piazzale Aldo Moro 2, Rome, 00185, Italy, CERN, European Organization for Nuclear Research, Geneva 23, CH-1211, Switzerland); G. Arduini (CERN, European Organization for Nuclear Research, Geneva 23, CH-1211, Switzerland); M. Butcher (CERN, European Organization for Nuclear Research, Geneva 23, CH-1211, Switzerland); F. Cerutti (CERN, European Organization for Nuclear Research, Geneva 23, CH-1211, Switzerland); S. Gilardoni (CERN, European Organization for Nuclear Research, Geneva 23, CH-1211, Switzerland); et al - Show all 46 authors
The results of observation and studies of focusing of 400 GeV/ c proton beam with the help of bent single crystals are presented. Two silicon crystals have been used in the measurements. The focal length of the first and second crystals is found to be 1.48 m and 0.68 m, respectively. The mean square size of the horizontal profile in the focus was 3.1 and 4.3 times as small as at the exit of the crystals.