Simulation of space shuttle neutron measurements withe FLUKA

Citation
L. Pinsky et al., Simulation of space shuttle neutron measurements withe FLUKA, RADIAT MEAS, 33(3), 2001, pp. 335-339
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
RADIATION MEASUREMENTS
ISSN journal
1350-4487 → ACNP
Volume
33
Issue
3
Year of publication
2001
Pages
335 - 339
Database
ISI
SICI code
1350-4487(200106)33:3<335:SOSSNM>2.0.ZU;2-H
Abstract
FLUKA is an integrated particle transport code that has enhanced multigroup low-energy neutron transport capability similar to the well-known MORSE tr ansport code. Gammas are produced in groups but many important individual l ines are specifically included, and subsequently transported by the main FL UKA routines which use a modified version of EGS4 for electromagnetic (EM) transport. Recoil protons are also transported by the primary FLUKA transpo rt simulation. The neutron cross-section libraries employed within FLUKA we re supplied by Giancarlo Panini (ENEA, Italy) based upon the most recent da ta from JEF-1, JEF-2.2, ENDF/B-VI, JENDL-3, etc. More than 60 different mat erials are included in the FLUKA databases with temperature ranges includin g down to cryogenic temperatures. This code has been used extensively to mo del the neutron environments near high-energy physics experiment shielding. A simulation of the Space Shuttle based upon a spherical aluminum equivale nt shielding distribution has been performed with reasonable results. There are good prospects for extending this calculation to a more realistic 3-D geometrical representation of the Shuttle including an accurate representat ion of its composition, which is an essential ingredient for the improvemen t of the predictions. A proposed project to develop a combined analysis and simulation package based upon FLUKA and the analysis infrastructure provid ed by the ROOT software is under active consideration. The code to be devel oped for this project will be of direct application to the problem of simul ating the neutron environment in space, including the albedo effects. (C) 2 001 Elsevier Science Ltd. All rights reserved.