High-Transmission Neutron Optical Devices Utilizing Micro-Machined Structures

Quantum Beam Science

article

Connor Kapahi¹  Dusan Sarenac¹  Markus Bleuel³  David G. Cory¹  Benjamin Heacock³  Melissa E. Henderson¹  Michael G. Huber³  Ivar Taminiau⁶  Dmitry Pushin¹ 

[1] Institute for Quantum Computing, University of Waterloo;Department of Physics, University of Waterloo;National Institute of Standards and Technology;Department of Materials Science and Engineering, University of Maryland, College Park;Department of Chemistry, University of Waterloo;Neutron Optics LP.

关键词: neutron optics;    neutron scattering;   

DOI  :  10.3390/qubs7010010

学科分类：环境科学（综合）

来源: mdpi

【 摘 要 】

Neutrons are a powerful probe in material science with unique penetrating abilities. A major challenge stems from the fact that neutron optical devices are limited to refractive indices on the order of n ≈ 1 ±10− 5. By exploiting advances in precision manufacturing, we designed and constructed micro-meter period triangular grating with a high-aspect ratio of 14.3. The manufacturing quality is demonstrated with white-light interferometric data and microscope imaging. Neutron-scattering experiment results are presented, showing agreement with refraction modelling. The capabilities of neutron Fresnel prisms and lenses based on this design are contrasted with existing neutron focusing techniques, and the path separation of a prism-based neutron interferometer is estimated.

【 授权许可】

CC BY