Quantum Fx
Quantum Fx - Related Videos
02:43
Quantum Numbers
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2020
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels. The energy levels are labeled with an n value, where n = 1, 2, 3, etc. Generally speaking, the energy of an electron in an atom is greater for greater values of n. This number, n, is referred to as the principal quantum number. The principal quantum number defines the...
10:00
Gradient Echo Quantum Memory in Warm Atomic Vapor
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Cited by 2 •
2013
The gradient echo memory is a protocol for storing optical quantum states of light in atomic ensembles. Quantum memory is a key element of a quantum repeater, which can extend the range of quantum key distribution. We outline the operation of the scheme when implemented in a 3-level atomic ensemble.
02:45
The Quantum-Mechanical Model of an Atom
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2020
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra. Schrödinger...
14:20
Absolute Quantum Yield Measurement of Powder Samples
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Cited by 16 •
2012
In this video we will demonstrate measuring and calculating absolute quantum yield and chromaticity coordinates directly in powder samples using the Hitachi F-7000 Quantum Yield Measuring System.
17:14
Compact Quantum Dots for Single-molecule Imaging
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Cited by 13 •
2012
We describe the preparation of colloidal quantum dots with minimized hydrodynamic size for single-molecule fluorescence imaging. Compared to conventional quantum dots, these nanoparticles are similar in size to globular proteins and are optimized for single-molecule brightness, stability against photodegradation, and resistance to nonspecific binding to proteins and cells.
FAQs
A cone-beam X-ray source and detector collect multiple projections while the small laboratory animal rotates. The system then reconstructs those measurements into cross-sectional views and volumetric images, allowing researchers to examine anatomical structures in three dimensions rather than relying on a single projection. This reconstruction supports detailed assessment of structural changes within the same experimental subject.
Rotation provides measurements from multiple projection angles, giving the reconstruction process information about structures throughout the imaged region. The resulting cross-sectional and volumetric views can reveal three-dimensional anatomy more completely than one view alone. In preclinical medicine, that added structural information helps researchers evaluate changes in bone, lungs, tumors, and other tissues.
Repeated imaging allows investigators to follow disease progression or treatment-related changes in the same subject over time. Because each subject serves as its own reference across imaging sessions, comparisons can reduce variability between animals and clarify how anatomy changes during an experiment. This supports more consistent evaluation of disease models, therapies, and tissue responses.
The workflow begins by acquiring X-ray projections as the subject rotates relative to the cone-beam source and detector. Those measurements are subsequently reconstructed into cross-sectional and volumetric images for analysis. The reconstructed data can then be compared across subjects or across repeated sessions to assess anatomical status, disease development, or changes associated with treatment.
Quantum FX supports preclinical evaluation of bone architecture, lung structure, tumor development, and treatment-related changes. These applications use its high-resolution three-dimensional images to characterize anatomy and monitor how structures change during disease or therapy studies. Its ability to image the same small laboratory animal repeatedly is especially relevant when investigators need to track progression rather than assess only a final endpoint.
The system is positioned for preclinical work with small laboratory animals, where researchers investigate disease models, therapies, and tissue responses before or alongside broader biomedical development. Its measurements provide anatomical and volumetric outcomes that can be followed over time. This makes it useful for connecting experimental interventions with observable structural changes in living subjects.