دورية أكاديمية
أعرض في EDS

CO2 laser heating system for in situ radial x-ray absorption at 16-BM-D at the Advanced Photon Source.

التفاصيل البيبلوغرافية
العنوان: CO2 laser heating system for in situ radial x-ray absorption at 16-BM-D at the Advanced Photon Source.
المؤلفون: Childs, Christian, Smith, Dean, Smith, G. Alexander, Ellison, Paul, Sneed, Daniel, Hinton, Jasmine, Siska, Emily, Pigott, Jeffrey S., Rod, Eric, O'Donnell, William, Salem, Ran, Sturtevant, Blake, Scharff, R. Jason, Velisavljevic, Nenad, Park, Changyong, Salamat, Ashkan
المصدر: Review of Scientific Instruments; Aug2022, Vol. 93 Issue 8, p1-8, 8p
مصطلحات موضوعية: EXTENDED X-ray absorption fine structure, X-ray absorption, HEATING, OPTICAL measurements, ACHROMATISM
الشركة/الكيان: ARGONNE National Laboratory
مستخلص: We present a portable CO2 laser heating system for in situ x-ray absorption spectroscopy (XAS) studies at 16-BM-D (High Pressure Collaborative Access Team, Advanced Photon Source, Argonne National Laboratory). Back scattering optical measurements are made possible by the implementation of a Ge beamsplitter. Optical pyrometry is conducted in the near-infrared, and our temperature measurements are free of chromatic aberration due to the implementation of the peak-scaling method [A. Kavner and W. R. Panero, Phys. Earth Planet. Inter. 143–144, 527–539 (2004) and A. Kavner and C. Nugent, Rev. Sci. Instrum. 79, 024902 (2008)] and mode scrambling of the input signal. Laser power stabilization is established using electronic feedback, providing a steady power over second timescales [Childs et al., Rev. Sci. Instrum. 91, 103003 (2020)]—crucial for longer XAS collections. Examples of in situ high pressure–temperature extended x-ray absorption fine structure measurements of ZrO2 are presented to demonstrate this new capability. [ABSTRACT FROM AUTHOR]
Copyright of Review of Scientific Instruments is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
قاعدة البيانات: Complementary Index
كن أول من يترك تعليقا!
يجب تسجيل دخولك أولا