CERN Accelerating science

Preprint
Report number	E1-2005-46 ; JINR-E1-2005-46
Title	Neutron Production in Spallation Reactions of 0.9 and 1.5 GeV Protons on a Thick Lead Target. Comparison between Experimental Data and Monte-Carlo Simulations
Author(s)	Krasa, A ; Adam, J ; Bradnova, V ; Caloun, P ; Chultem, D ; Henzl, V ; Henzlová, D ; Kalinnikov, V G ; Krivopustov, M I ; Krízek, F ; Kugler, A ; Majerle, M ; Solnyshkin, A A ; Stegailov, V I ; Tsoupko-Sitnikov, V M ; Tumendelger, T ; Vasilev, S I ; Wagner, V
Affiliation	(Dzhelepov Laboratory of Nuclear Problems, Dubna)
Corporate author(s)	Nuclear Physics Institute of Academy of Sciences of Czech Republic, Rez, Czech Republic
Publication	2005
Imprint	11 Apr 2005
Number of pages	24
Subject category	Particle Physics - Experiment
Abstract	This paper reports on two experiments performed at the Synchrophasotron/Nuclotron accelerator complex at JINR. Relativistic protons with energies 885 MeV and 1.5 GeV hit a massive cylindrical lead target. The spatial and energetic distributions of the neutron field produced by the spallation reactions were measured by the activation of Al, Au, Bi, Co, and Cu foils placed on the surface of the target and close to it. The yields of the radioactive nuclei produced by threshold reactions in these foils were determined by the analyses of their $\gamma$ spectra. The comparison with Monte-Carlo based simulations was performed both with the LAHET+MCNP code and the MCNPX code.
Submitted by	[email protected]