Venkata S. C. Kuppili

ORCID: 0000-0003-3979-0217
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About
Contact & Profiles
Research Areas
  • Advanced X-ray Imaging Techniques
  • Geological and Geochemical Analysis
  • Geology and Paleoclimatology Research
  • High-pressure geophysics and materials
  • Paleontology and Stratigraphy of Fossils
  • Isotope Analysis in Ecology
  • Advanced Electron Microscopy Techniques and Applications
  • Medical Imaging Techniques and Applications
  • Protein Hydrolysis and Bioactive Peptides
  • Adaptive optics and wavefront sensing
  • Laser-Plasma Interactions and Diagnostics
  • Laser Design and Applications
  • Advanced X-ray and CT Imaging
  • Astro and Planetary Science
  • Geomagnetism and Paleomagnetism Studies
  • X-ray Spectroscopy and Fluorescence Analysis
  • Crystallography and Radiation Phenomena
  • Advanced Materials Characterization Techniques
  • Advanced Proteomics Techniques and Applications
  • Proteins in Food Systems
  • Astronomy and Astrophysical Research
  • Advanced MRI Techniques and Applications
  • Geophysical and Geoelectrical Methods

Canadian Light Source (Canada)
2020-2024

University of Saskatchewan
2021-2024

University of Cambridge
2019-2024

Diamond Light Source
2017-2020

University College London
2017-2018

University of Southampton
2017-2018

The thermal history of asteroids is recorded by the radioisotopic ages meteorites that derive from them. Radioisotopic may date a number events, such as cooling parent body during waning radiogenic metamorphism, rapid experienced upon break-up, and/or subsequent collision-induced reheating material. However, sampling statistics for meteorite radioisotope are currently relatively low and most derived analyses bulk material, therefore lacking in-situ microtextural context aids in...

10.1016/j.gca.2023.07.012 article EN cc-by Geochimica et Cosmochimica Acta 2023-07-18

Abstract The diagnostic power of first‐order reversal curve (FORC) diagrams has recently been enhanced by an extended measurement protocol that yields three additional FORC‐like diagrams: the remanent (remFORC), induced (iFORC), and transient (tFORC) diagrams. Here, we present micromagnetic simulations using this protocol, including numerical predictions remFORC, iFORC, tFORC signatures for particle ensembles relevant to rock magnetism. Simulations are presented randomly packed single‐domain...

10.1029/2019jb018050 article EN publisher-specific-oa Journal of Geophysical Research Solid Earth 2019-11-21

We apply X-ray ptycho-tomography to perform high-resolution, non-destructive, three-dimensional (3D) imaging of Fe-rich inclusions in paleomagnetically relevant materials (zircon single crystals from the Bishop Tuff ignimbrite). Correlative using quantum diamond magnetic microscopy combined with fluorescence mapping was used locate regions containing potential ferromagnetic remanence carriers. Ptycho-tomographic reconstructions voxel sizes 85 nm and 21 were achievable across a field-of-view...

10.1038/s41598-024-55846-4 article EN cc-by Scientific Reports 2024-03-01

Paleoclimatic and paleoceanographic studies routinely rely on the usage of foraminiferal calcite through faunal, morphometric physico-chemical proxies. The application such proxies presupposes extraction cleaning these biomineralized components from ocean sediments in most efficient way, a process which is often labor intensive time consuming. In this respect, study we performed systematic experiment for planktonic specimen using different chemical treatments evaluated resulting data Late...

10.3390/jmse8120998 article EN cc-by Journal of Marine Science and Engineering 2020-12-07

The success of ptychography and other imaging experiments at third-generation X-ray sources is apparent from their increasingly widespread application the improving quality images they produce both for resolution contrast in terms relaxation experimental constraints. wider availability highly coherent X-rays stimulates development several complementary techniques which have seen limited mutual integration recent years. This paper presents a framework some established – with particular regard...

10.1107/s1600577518007221 article EN cc-by Journal of Synchrotron Radiation 2018-06-17

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10.1017/s1431927618013430 article EN Microscopy and Microanalysis 2018-08-01

Paleoclimatic and paleoceanographic studies routinely rely on the usage of foraminiferal calcite through faunal, morphometric physico-chemical proxies. The application such proxies presupposes extraction cleaning these biomineralized components from ocean sediments in most efficient way, a process which is often labor intensive time consuming. In this respect, study we performed systematic experiment for planktonic specimen using different chemical treatments evaluated resulting data Late...

10.20944/preprints202011.0361.v1 preprint EN 2020-11-12

Presence of proteins in surface corona milk interacted particles is largely influenced by interactions with biomolecules rather than particle surface.

10.1039/d1nr03712a article EN Nanoscale 2021-01-01

We describe the implementation and execution of ptychotomography at I13-1, coherence branchline Diamond Light Source. The data collection image reconstruction protocol is demonstrated with three dimensional a nanoporous gold sample.

10.1088/1742-6596/849/1/012031 article EN Journal of Physics Conference Series 2017-06-01

High emittance synchrotron sources have always been assumed to possess suboptimal coherence properties, especially in the hard Xray regime. While this is largely true, it very important understand limits of for these existing high sources. Coherence length measurements were carried out regime at BXDS IVU beamline, Canadian Light Source. Young's double slit experiment was employed multiple energies both horizontal and vertical direction leading a thorough characterization properties beamline....

10.48550/arxiv.2410.13172 preprint EN arXiv (Cornell University) 2024-10-16

The Diamond Beamline I13L is designed to imaging on the micron- and nano-lengthsale with X-rays of energies between 6 30 keV [1]. Two independently operating branchlines endstations have been built at distance more than 200m from source for this purpose. branch dedicated in real space, providing In-line phase contrast grating interferometry micrometre resolution full-field transmission microscopy 50nm spatial resolution. On coherence coherent diffraction techniques such as ptychography,...

10.1117/12.2274501 article EN 2017-10-03
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