Shielding considerations for ESS LoKI-Reference-Cited by-同舟云学术

Shielding considerations for ESS LoKI

Published:2020-10-20 Issue:2-3 Volume:22 Page:119-129
ISSN:1477-2655
Container-title:Journal of Neutron Research
language:
Short-container-title:JNR

Author:

Náfrádi Gábor¹,Orszulik Anton¹,Cooper Jacob¹,Hicks Ben¹,Turner David¹,Halcrow William¹,Jackson Andrew²,Lilley Steven¹

Affiliation:

1. ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom. E-mails: gabor.nafradi@stfc.ac.uk, william.halcrow@stfc.ac.uk, steven.lilley@stfc.ac.uk

2. European Spallation Source, SE-211 00 Lund, Sweden. E-mail: andrew.jackson@esss.se

Abstract

LoKI is a SANS instrument being built by STFC ISIS as an in-kind contribution to ESS. According to the recent schedule, LoKI, is one of the first three instruments of ESS that is going to contribute to early science from 2023. MCNP calculations were carried out to determine the required shielding around different sections of the instrument. For the geometry development, SuperMC/MCAM was used. Highlights from the neutronics calculations based on the most frequent classes of possible events are presented here. These include heavy shutter performance, collimator section shielding and detector tank shielding. Activation and background calculations are not detailed in this paper.

Publisher

IOS Press

Subject

Nuclear Energy and Engineering,Nuclear and High Energy Physics

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