Cinematic reflectometry using QIKR, the quite intense kinetics reflectometer

被引：5

作者：

Ankner, J. F. ^{[1
]}

Ashkar, R. ^{[2
]}

Browning, J. F. ^{[3
]}

Charlton, T. R. ^{[3
]}

Doucet, M. ^{[3
]}

Halbert, C. E. ^{[3
]}

Islam, F. ^{[4
]}

Karim, A. ^{[5
]}

Kharlampieva, E. ^{[6
]}

Kilbey II, S. M. ^{[7
]}

Lin, J. Y. Y. ^{[1
]}

Phan, M. D. ^{[3
,8
]}

Smith, G. S. ^{[3
]}

Sukhishvili, S. A. ^{[9
]}

Thermer, R. ^{[1
]}

Veith, G. M. ^{[10
]}

Watkins, E. B. ^{[3
,11
]}

Wilson, D. ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Second Target Stn Project, Oak Ridge, TN 37831 USA

[2] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA

[3] Oak Ridge Natl Lab, Neutron Sci Div, Oak Ridge, TN 37831 USA

[4] Oak Ridge Natl Lab, Neutron Technol Div, Oak Ridge, TN 37831 USA

[5] Univ Houston, Dept Chem & Biomol Engn, Houston, TX 77204 USA

[6] Univ Alabama Birmingham, Dept Chem, Birmingham, AL 35294 USA

[7] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA

[8] Univ Delaware, Dept Chem & Biomol Engn, Newark, DE 19716 USA

[9] Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX 77843 USA

[10] Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA

[11] Los Alamos Natl Lab, Phys Div, Los Alamos, NM 87545 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2023年 / 94卷 / 01期

关键词：

POLARIZED NEUTRON REFLECTOMETER; SILICON ELECTRODES; LIPID RAFTS; X-RAY; SURFACE; LITHIATION; INTERFACE; BILAYERS; REFLECTIVITY; SPECTROSCOPY;

D O I：

10.1063/5.0122279

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Quite Intense Kinetics Reflectometer (QIKR) will be a general-purpose, horizontal-sample-surface neutron reflectometer. Reflectometers measure the proportion of an incident probe beam reflected from a surface as a function of wavevector (momentum) transfer to infer the distribution and composition of matter near an interface. The unique scattering properties of neutrons make this technique especially useful in the study of soft matter, biomaterials, and materials used in energy storage. Exploiting the increased brilliance of the Spallation Neutron Source Second Target Station, QIKR will collect specular and off-specular reflectivity data faster than the best existing such machines. It will often be possible to collect complete specular reflectivity curves using a single instrument setting, enabling "cinematic " operation, wherein the user turns on the instrument and "films " the sample. Samples in time-dependent environments (e.g., temperature, electrochemical, or undergoing chemical alteration) will be observed in real time, in favorable cases with frame rates as fast as 1 Hz. Cinematic data acquisition promises to make time-dependent measurements routine, with time resolution specified during post-experiment data analysis. This capability will be deployed to observe such processes as in situ polymer diffusion, battery electrode charge-discharge cycles, hysteresis loops, and membrane protein insertion into lipid layers. (c) 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

引用

页数：20