High-Transmission Neutron Optical Devices Utilizing Micro-Machined Structures

被引：0

作者：

Kapahi, Connor ^{[1
,2
]}

Sarenac, Dusan ^{[1
]}

Bleuel, Markus ^{[3
,4
]}

Cory, David G. ^{[1
,5
]}

Heacock, Benjamin ^{[3
]}

Henderson, Melissa E. ^{[1
,2
]}

Huber, Michael G. ^{[3
]}

Taminiau, Ivar ^{[6
]}

Pushin, Dmitry ^{[1
,2
]}

机构：

[1] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L3G1, Canada

[2] Univ Waterloo, Dept Phys, Waterloo, ON N2L3G1, Canada

[3] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[4] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

[5] Univ Waterloo, Dept Chem, Waterloo, ON N2L3G1, Canada

[6] Neutron Opt LP, Quantum Valley Investment, Waterloo, ON N2L 6R2, Canada

来源：

QUANTUM BEAM SCIENCE | 2023年 / 7卷 / 01期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

neutron optics; neutron scattering; INTERFEROMETRY; LENS;

D O I：

10.3390/qubs7010010

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

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 approximate to 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.

引用

页数：11

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