Author/Authors :
Watanabe، نويسنده , , H. and Abe، نويسنده , , K. and Aikawa، نويسنده , , Y. and Akune، نويسنده , , Y. and Doroshenko، نويسنده , , M. and Harada، نويسنده , , E. and Hsiung، نويسنده , , Y.B. and Ikei، نويسنده , , T. and Ikemoto، نويسنده , , Y. and Inoue، نويسنده , , S. and Inagaki، نويسنده , , T. and Kawakubo، نويسنده , , N. and Kobayashi، نويسنده , , S. and Kojima، نويسنده , , T. and Kurilin، نويسنده , , A.S. and Lee، نويسنده , , S.Y. and Lim، نويسنده ,
Abstract :
A neutral beam line was constructed at the 12-GeV proton synchrotron of KEK for an experiment to study K L 0 → π 0 ν ν ¯ decay. It was designed to make a well-collimated K L 0 beam with small γ and neutron halos. In a series of beam-survey experiments, beam profiles and energy spectra of γ ʹs and neutrons were measured. It was confirmed that the beam was sharply collimated with a halo-to-core flux ratio lower than 10 - 4 . These experimental results were well reproduced by a Monte-Carlo simulation based on the GEANT-3 program.
