Measurements and calculations of air activation in the NuMI neutrino production facility at Fermilab with the 120-GeV proton beam on target

Measurements and calculations of the air activation at a high-energy proton accelerator are described. The quantity of radionuclides released outdoors depends on operation scenarios including details of the air exchange inside the facility. To improve the prediction of the air activation levels, the...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2018-01, Vol.414 (C), p.4-10
Main Authors: Rakhno, I.L., Hylen, J., Kasper, P., Mokhov, N.V., Quinn, M., Striganov, S.I., Vaziri, K.
Format: Article
Language:English
Subjects:
Air activation
High energy proton accelerator
LBNF
MARS15
NuMI
PARTICLE ACCELERATORS
Radionuclide
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Summary:Measurements and calculations of the air activation at a high-energy proton accelerator are described. The quantity of radionuclides released outdoors depends on operation scenarios including details of the air exchange inside the facility. To improve the prediction of the air activation levels, the MARS15 Monte Carlo code radionuclide production model was modified to be used for these studies. Measurements were done to benchmark the new model and verify its use in optimization studies for the new DUNE experiment at the Long Baseline Neutrino Facility (LBNF) at Fermilab. The measured production rates for the most important radionuclides – 11C, 13N, 15O and 41Ar – are in a good agreement with those calculated with the improved MARS15 code.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2017.09.021