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  1. Good practices in interventional procedures | IAEA

    www.iaea.org › resources › rpop

    When a thicker patient is positioned in the path of the X-ray beam, the AEC system increases the exposure factors (kV, mA) in order to compensate for the increased attenuation in the patient’s body and conversely the exposure factors decrease when a slim patient or thinner body part is in the beam.

  2. High-resolution X-ray luminescence extension imaging | Nature

    www.nature.com › articles › s41586/021/03251-6

    Feb 17, 2021 · a, Absorption spectra of NaYF 4, NaGdF 4 and NaLuF 4 as a function of X-ray energy. Attenuation coefficients were obtained from ref. 26.The inset shows a schematic of X-ray-induced photoionization ...

  3. Wave-particle duality means that all matter has properties of both particles and waves. So, we can think of light as a wave sometimes and as a stream of particles, or photons, at other times.

  4. Identification of single-atom active sites in carbon-based ...

    www.nature.com › articles › s41929/018/0203-5

    Dec 31, 2018 · The X-ray power diffraction (XRD) pattern of Co 1 /PCN is almost the same as that of pristine graphite (g)-C 3 N 4 nanosheets (Supplementary Fig. 3), confirming the non-existence of Co-containing ...

  5. Exploiting dual-energy CT and DirectSPR software to reduce ...

    physicsworld.com › a › exploiting-dual-energy-ct-and

    Jul 01, 2021 · Unlike conventional CT, this imaging modality involves the acquisition of two separate X-ray energy spectra – an approach that, in turn, allows the characterization of tissues exhibiting different attenuation properties at different energies (though, crucially, without exposing patients to a higher X-ray dose).

  6. Oct 13, 2020 · 2,456 Likes, 120 Comments - University of South Carolina (@uofsc) on Instagram: “Do you know a future Gamecock thinking about #GoingGarnet? 🎉 ••• Tag them to make sure they apply…”

  7. Mar 11, 2020 · First Annual Law School Fair: coronavirus style. @uark.prelawsociety it’s been great being your president, but I swear I’ve seen it all at this point! (disclaimer for anyone seeing this post-2020, this event happened the day before my university shut down.

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