Author/Authors :
Kawagoe، نويسنده , , K and Sugimoto، نويسنده , , Y and Takeuchi، نويسنده , , A and Asakawa، نويسنده , , T and Done، نويسنده , , J.P and Fujii، نويسنده , , Y and Furukawa، نويسنده , , K and Kajino، نويسنده , , F and Kamon، نويسنده , , T and Kanaya، نويسنده , , N and Kanzaki، نويسنده , , J and Kim، نويسنده , , S and Nakagawa، نويسنده , , A and Nozaki، نويسنده , , M and Oishi، نويسنده , , R and Ota، نويسنده , , T and Takeda، نويسنده , , H and Takeshita، نويسنده , , T and Uozumi، نويسنده , , S، نويسنده ,
Abstract :
The electron/hadron separation in the calorimetry can be improved if we measure the electromagnetic shower development at an early stage. The incident positions of electrons and photons can be precisely measured with a position sensitive detector placed near the electromagnetic shower maximum. We constructed a set of prototype preshower and shower-maximum detectors to be attached in front of a main calorimeter. Performance of the detectors was studied in combination with a lead/plastic-scintillator calorimeter module using high energy beams up to 100 GeV at a test beam facility at Fermi National Accelerator Laboratory.
Keywords :
Preshower , Electron identification , Shower-maximum , Position resolution , Calorimeter
