Looking for parts for your Single Cylinder Hydraulic crusher? YYD offers high-quality replacement parts guaranteed to perform as well as (or better than) OEM Single Cylinder Hydraulic crusher parts-all with customer support that exceeds what you`d expect from Single Cylinder Hydraulic crusher dealers! Single Cylinder Hydraulic Series Single Cylinder Hydraulic Series,Bottom Shell Bushing,Piston Shaft Plate,Wearing Plate Shenyang YYD Casting Co,. Ltd. , http://www.yydcasting.com
Recently, laser physicists measured photoionization with leap second accuracy for the first time. Scientists at the Technical University of Munich stated that this is the highest accuracy ever obtained in the micro-world time measurement and the first absolute measurement of the photoionization time scale.
Photoionization is the process by which photons interact with electrons in atoms. When a photon hits two electrons of a helium atom, the energy of the photon is totally absorbed by one of the electrons or absorbed by both electrons. No matter how energy is transferred, there will be one electron that will escape from the atom. This process is called the photoelectric effect. Einstein explained this at the beginning of the 20th century.
Physicists have discovered in recent years that the interaction between a photon and an electron begins with one of the electrons leaving the atom for a total of 5-15 as (1as = 10-18s). Recently, laser physicists from the Max Planck Institute for Quantum Optics (MPQ), Munich University of Technology (TUM) and Ludwig Maximilian-Munich University (LMU or the University of Munich) obtained for the first time Accurate measurement results for 850 zs (1zs = 10-21s).
In order to excite the electrons in helium atoms, the researchers used atoms of extreme ultraviolet (XUV) pulses with a pulse width of a second. At the same time, the atoms are irradiated with infrared light pulses having a pulse width of about 4 fs (1 fs=10-15 s). Once the electrons are excited by the extreme ultraviolet light to escape from the atom, the electrons accelerate or decelerate under the electromagnetic field of the infrared light pulse. Through this change of speed, the physicists can measure the photoelectric effect with leap second accuracy.
For the first time, researchers determined from a quantum mechanics point of view how the energy of an incident photon is divided between two electrons of a helium atom within a few seconds before a particle is emitted. The helium atom has only two electrons and is the only multi-electron system that can be completely calculated using quantum mechanics. This makes it possible to match theoretical values ​​with experimental results.
Once a photon energizes one atom of a deuterium atom and disengages it from an atom, the possible position of the remaining electrons can be calculated. The location where electrons are most likely to be located is the brightest area around the nucleus in the diagram.
Laser physicists have filled in the gaps in the measurement of germanium atoms in quantum mechanics through the measurement of leap seconds, and have therefore increased the measurement accuracy of the microscopic world to a whole new dimension.
(Original title: Laser physicists measure photoionization with leap second accuracy for the first time)
YYD has been here all along producing premium replacement parts for all the modern SINGLE CYLINDER HYDRAULIC Hydrocone crusher parts, YYD carries the premium replacement parts for your unit. In most cases, we have the part on the shelf and ready for immediate shipment. In some cases, YYD has even improved the conventional design of the part to enhance durability and performance. Whether you need to replace the Eccentric bush, the Bottom Shell Bushing or the Piston Wearing Plate- YYD has your Hydroset-style crusher parts need covered.YYD is Your SuperStore for Single Cylinder Hydraulic crusher parts,including Single Cylinder Hydraulic Hydrocone crusher parts and Single Cylinder Hydraulic Superior crusher Parts! We are committed to meeting your replacement parts need in a professional and efficient manner. Our Customer Support Department is ready to help you with a quote, to check inventory or to simply answer a technical question. Talk to your YYD professional today about your specific needs!
China Instrument Network Instrument Development: Laser Physics from the Max Planck Institute for Quantum Optics (MPQ), Munich University of Technology (TUM) and Ludwig-Maximilian-University of Munich (LMU or University of Munich) For the first time, homemakers obtained accurate measurements of 850 zs (1zs=10-21s).
Photoionization Process of Helium Atom