Author/Authors :
Agnetta، نويسنده , , G. B. Ambrosio، نويسنده , , M. and Beaman، نويسنده , , J. and Barbarino، نويسنده , , G.C. and Biondo، نويسنده , , B. and Catalano، نويسنده , , O. and Colesanti، نويسنده , , L. and Dalى، نويسنده , , G. and Guarino، نويسنده , , F. and Lauro، نويسنده , , A. and Lloyd-Evans، نويسنده , , J. and Mangano، نويسنده , , Michelle A. and Popova، نويسنده , , L. and Scarsi، نويسنده , , L. and Watson، نويسنده , , A.A.، نويسنده ,
Abstract :
A novel experimental installation is described in which the traditional method of detecting extensive air showers with scintillation counters is significantly extended by the addition of limited streamer tube hodoscopes (LST) and layers of resistive plate counters (RPC). Runs with the scintillator array, GREX, at Haverah Park have demonstrated the power of the LST hodoscopes to determine the direction of arrival of muons, electrons and photons in air showers while the RPC system permits the relative arrival time of individual particles and the temporal thickness and structure of the shower disc to be obtained. The potential of these technical advances for studying the longitudinal profile of air showers produced by primaries of about 1000 TeV is briefly discussed. First measurements of thickness and time profile of EAS front are also reported.
