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Vacuum Chamber Design for a Magneto
Vacuum Chamber Design for a Magneto

... Laser cooling works by reducing the speed of atoms, which also reduces their temperature. It exploits the fact that atoms are able to absorb energy only in specific quantized amounts determined by their internal structure. An atom that collides with a photon can only absorb its energy and enter an e ...
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... investigated. Since soft X-rays are strongly absorbed by light elements such as C, N, and O, it is highly required that the soft X-rays pass through thin liquid samples below a few micrometers thickness under the vacuum condition.19 XAS in transmission mode is a quantitative method to measure the ab ...
Dark solitons in mode-locked lasers Mark J. Ablowitz , Theodoros P. Horikis
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... Dark solitons are intensity dips on a constant background with a phase jump across their intensity minimum. Since their discovery [3], dark solitons have attracted considerable attention, especially in the fields of nonlinear optics [4] and Bose-Einstein condensates [5]. In addition, the development ...
Quantum Fluctuations of Mass for a Mirror in Vacuum
Quantum Fluctuations of Mass for a Mirror in Vacuum

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turcuman s - Revista de Chimie

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... view of optics and opened up new ways of processing light. Photonic crystals are composed of periodic dielectric or metallo-dielectric nanostructures that affect the propagation of electromagnetic waves (EM) in the same way as the periodic potential in a Semiconductor crystal affects the electron mo ...
Physics 451 - BYU Physics and Astronomy
Physics 451 - BYU Physics and Astronomy

... We need to evaluate the Hamiltonian for this interaction and solve the Schrodinger equation Constraint 2: the energy of the photon and recoiled electron are high So we need a relativistic quantum theory ...
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Planck`s law

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AP Chemistry: Bonding Multiple Choice

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... that the interaction of atoms with radiation, i.e., the emission or absorption of radiation by atoms, takes place only in discrete amounts of hF because it results from transitions of the atom between its various discrete energy states. This work provided a satisfactory explanation to several outsta ...
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Coherent learning control of vibrational motion in room temperature molecular gases

... consisted of a pulse train at the vibrational frequency of the mode being excited. In order to discover optimal pulse shapes for driving and suppressing this molecular coherence, we used an evolutionary algorithm [24] that starts with a collection of population members, each of which corresponds to ...
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The Spectrum of the Hydrogen Atom

... one will change the other. This theory is known as Heisenberg’s uncertainty principle. For example, using light to measure the position of a small particle will let us know where it was at a certain time to an accuracy in the order of the wavelength of the light. In order to make the measurement mor ...
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... Thompson’s electron carried a fixed (quantized) amount of electric charge and mass J.J. Thompson discovered the electron as a sub-atomic particle in 1897. He measured the charge to mass ratio of the electron. Later he measured the charge of the electron and calculated its mass. He concluded that el ...
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... 66. The purpose of weighing the cup and its contents again at CaCl2(s)  Ca2+ + 2 Clthe end of the experiment was to For the process of solid calcium chloride dissolving in water, (A) determine the mass of solute that was added. represented above, the entropy change might be expected to (B) determi ...
Lecture 19: The Aufbau Principle
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... For example, in a simple lowest-energy state of hydrogen atom, the electrons are most likely to be found within a sphere around the nucleus of an atom. In a higher energy state, the shapes become lobes and rings, due to the interaction of the quantum effects between the different atomic particles ...
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X-ray fluorescence



X-ray fluorescence (XRF) is the emission of characteristic ""secondary"" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.
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