Neutron absorption in supermirror coatings: Effects on shielding

2017/08/15 by Kolevatov, Rodion, Schanzer, Christian, Boeni, Peter · 1 citation
#FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det)

paper · doi:10.48550/arxiv.1708.04486

Abstract

The quantification of the dose rate and the composition of the dose in the vicinity of supermirror coated guides is essential for designing shielding for beamlines transporting neutrons with a high flux. We present results on a calculation of radiative neutron absorption in Ni/Ti and NiMo/Ti supermirror coatings which leads to the emission of high energy gamma rays. A simple parameterization of the absorption probability in the coating materials per incident neutron is given as a function of momentum transfer at reflection.

Cited by

• Influence of Silicon Interlayers on Transition Layer Formation in Ti/Ni Multilayer Structures of Different Thicknesses

Related

• Two-Group Flux Analysis of Neutrons which enter, internally scatter, and often escape a Shielding Layer of Iron -- with respective Group Settings circa one MeV and kilo-eV
• Material design optimization for large-m 11B4C-based Ni/Ti supermirror neutron optics
• Neutron Interaction Properties of Structural Materials for Multi-Grid Neutron Detectors
• Depolarization studies on low-depolarizing Cu/Ti and Ni(Mo)/Ti neutron supermirrors
• Evaluating the effectiveness of concrete and metal shields in photoneutron reduction: A Monte Carlo study