Author/Authors :
Posp???il، نويسنده , , S. and ?tekl، نويسنده , , I. and ?ech?k، نويسنده , , T. and ?erm?k، نويسنده , , P. and Jaku?bek، نويسنده , , J. and Kluson، نويسنده , , J. and Kon???ek، نويسنده , , J. and Kuba?ta، نويسنده , , J. and Linhart، نويسنده , , V. and ?i?or، نويسنده , , M. and Leroy، نويسنده , , C. and Dole?al، نويسنده , , Z. and Leitner، نويسنده , , R. and Lukhanin، نويسنده , , G. and Soustru?n??k، نويسنده , , K. and Lokaj???ek، نويسنده , , M. and N?me?ek، نويسنده , , S. and Palla، نويسنده , , J. and Sodomka، نويسنده , , J.، نويسنده ,
Abstract :
Experimental tests devoted to the optimization of the neutron shielding for the ATLAS forward region were performed at the CERN-PS with a 4 GeV/c proton beam. Spectra of fast neutrons, slow neutrons and gamma rays escaping a block of iron (40×40×80 cm3) shielded with different types of neutron and gamma shields (pure polyethylene – PE; borated polyethylene – BPE; lithium filled polyethylene – LiPE; lead; iron) were measured by means of plastic scintillators, a Bonner spectrometer, a HPGe detector and a slow neutron detector. Effectiveness of different types of shielding against neutrons and γ-rays were compared. The idea of a segmented outer layer shielding (iron, BPE, iron, LiPE) for the ATLAS forward region was also tested.
