CTOF measurements and Monte Carlo analyses of neutron spectra for the backward direction from an iron target irradiated with 400-1200 MeV protons

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:267

Article

Azhgirey, I. L.¹  Belyakov-Bodin, V. I.¹  Degtyarev, I. I.¹  Mashnik, S. G.²  Gallmeier, F. X.³  Lu, W.³ 

[1] Inst High Energy Phys, Protvino, Russia

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[3] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA

关键词: Measurement;    Neutron spectrum;    Comparison;    Prediction by the MARS and the MCNPX code systems;   

DOI  :  10.1016/j.nimb.2009.09.019

来源: Elsevier

【 摘 要 】

A calorimetric-time-of-flight (CTOF) technique was used for real-time, high-precision measurement of the neutron spectrum at an angle of 175 degrees from the initial proton beam direction, which hits a face plane of a cylindrical iron target of 20 cm in diameter and 25 cm thick. A comparison was performed between the neutron spectra predicted by the MARS and the MCNPX codes and that measured for 400, 600, 800, 1000 and 1200 MeV protons. (C) 2009 Elsevier B.V. All rights reserved.

【 授权许可】

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