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SEC Experiment
The Scattering Experiments Chamber (SEC) experiment is a permanent experimental setup located in the ISOLDE, ISOLDE facility at CERN. The station facilitates diversified reaction experiments, especially for studying low-lying Resonance, resonances in light atomic nuclei via transfer reactions. SEC does not detect Gamma ray, gamma radiation, and therefore is complementary to the ISOLDE Solenoidal Spectrometer experiment, ISOLDE Solenoidal Spectrometer (ISS) and Miniball experiment, Miniball experiments. Experimental setup The SEC experiment uses radioactive ion beams from ISOLDE, at the end of XT03 beamline of the HIE-ISOLDE facility. The ion beam first passes through a collimator, of 15 mm aperture, surrounded by 4 silicon detectors, designed for beam optimisation. The SEC chamber has a diameter of 1 m and height of 50 cm, with the reaction target placed in the centre on a motorised target holder. The target holder has the space for four targets, and each target can be moved in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SEC ISOLDE
SEC or Sec may refer to: Companies *Solar Entertainment Corporation, a Filipino media company * Samsung Electronics Co., Ltd., an electronics company Government * Securities and Exchange Commission (other) **U.S. Securities and Exchange Commission *State Electricity Commission of Victoria, Australia *State Examinations Commission, Ireland * State-owned Enterprises Commission, Taiwan Science *Saga execution coordinator, a component of the saga interaction pattern in computer science *, the Sec secretion system in bacteria * Secant function, in mathematics *Size-exclusion chromatography *Space Weather Prediction Center, formerly Space Environment Center *Selenocysteine, an amino acid *Secondary Electron Conduction Tube, part of the Apollo TV camera *SEC experiment (Scattering Experiment Chambers) at CERN Sports *Southeastern Conference, one of the major U.S. collegiate sports conferences * Southeast Conference in the Wisconsin Interscholastic Athletic Association *Speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISOLDE
Iseult ( ), alternatively Isolde ( ) and other spellings, is the name of several characters in the legend of Tristan and Iseult. The most prominent is Iseult the Blonde, or Iseult of Ireland, the wife of Mark of Cornwall and the lover of Tristan. Her mother, the queen of Ireland, is also named Iseult. The third is Iseult of the White Hands, or Iseult of Brittany, the daughter of Hoel and the sister of Kahedin. Name Her name is variably given as most commonly either Iseult or Isolde, but also may appear as Yseult, Ysolt, Isolt, Isode, Isoude, Iseut, Isaut (Old French), Iosóid (Irish), Esyllt (Welsh), Ysella (Cornish), Isolda (Portuguese, Spanish), Izolda (Serbian) and Isotta (Italian), among other forms. The oldest source, Béroul's 12th-century romance, spells her name as ''Yseut'' or ''Iseut''. The etymology is uncertain, with most sources linking it to the Old High German words ''īs'' ("ice") and ''hiltja'' ("battle"). Other writers derive it from a Brythonic *''Adsiltia' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CERN
The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Geneva, on the France–Switzerland border. It comprises #Member states and budget, 24 member states. Israel, admitted in 2013, is the only full member geographically out of Europe. CERN is an official United Nations General Assembly observers#Intergovernmental organizations, United Nations General Assembly observer. The acronym CERN is also used to refer to the laboratory; in 2023, it had 2,666 scientific, technical, and administrative staff members, and hosted about 12,370 users from institutions in more than 80 countries. In 2016, CERN generated 49 Byte#Multiple-byte units, petabytes of data. CERN's main function is to provide the particle accelerators and other infrastructure needed for high-energy physics research – consequently, numer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resonance
Resonance is a phenomenon that occurs when an object or system is subjected to an external force or vibration whose frequency matches a resonant frequency (or resonance frequency) of the system, defined as a frequency that generates a maximum amplitude response in the system. When this happens, the object or system absorbs energy from the external force and starts vibrating with a larger amplitude. Resonance can occur in various systems, such as mechanical, electrical, or acoustic systems, and it is often desirable in certain applications, such as musical instruments or radio receivers. However, resonance can also be detrimental, leading to excessive vibrations or even structural failure in some cases. All systems, including molecular systems and particles, tend to vibrate at a natural frequency depending upon their structure; when there is very little damping this frequency is approximately equal to, but slightly above, the resonant frequency. When an Oscillation, oscillat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Nuclei
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford at the University of Manchester based on the 1909 Geiger–Marsden gold foil experiment. After the discovery of the neutron in 1932, models for a nucleus composed of protons and neutrons were quickly developed by Dmitri Ivanenko and Werner Heisenberg. An atom is composed of a positively charged nucleus, with a cloud of negatively charged electrons surrounding it, bound together by electrostatic force. Almost all of the mass of an atom is located in the nucleus, with a very small contribution from the electron cloud. Protons and neutrons are bound together to form a nucleus by the nuclear force. The diameter of the nucleus is in the range of () for hydrogen (the diameter of a single proton) to about for uranium. These dimensions are much smaller than the diameter of the atom itself (nucleus + electron cloud), by a factor of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamma Ray
A gamma ray, also known as gamma radiation (symbol ), is a penetrating form of electromagnetic radiation arising from high energy interactions like the radioactive decay of atomic nuclei or astronomical events like solar flares. It consists of the shortest wavelength electromagnetic waves, typically shorter than those of X-rays. With frequencies above 30 exahertz () and wavelengths less than 10 picometers (), gamma ray photons have the highest photon energy of any form of electromagnetic radiation. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium. In 1903, Ernest Rutherford named this radiation ''gamma rays'' based on their relatively strong penetration of matter; in 1900, he had already named two less penetrating types of decay radiation (discovered by Henri Becquerel) alpha rays and beta rays in ascending order of penetrating power. Gamma rays from radioactive decay are in the energy range ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISOLDE Solenoidal Spectrometer Experiment
The ISOLDE Solenoidal Spectrometer (ISS) experiment is a permanent experimental setup located in the On-Line Isotope Mass Separator, ISOLDE facility at CERN. By using an ex-Magnetic resonance imaging, MRI magnet, heavy Radioactive decay, radioactive Ion beam, ion beams (RIBs) produced by the HIE-ISOLDE post-Particle accelerator, accelerator are directed at a light target and the kinematics of the reaction is measured. The purpose of the experiment is to measure properties of Atomic nucleus, atomic nuclei replicating the conditions present in some Astrophysics, astrophysical processes, such as the production of chemical elements in stars. The experiment will also produce results that provide a better understanding of nucleon-nucleon interactions in highly-unstable, very radioactive (exotic) nuclei. The ISS experiment was fully commissioned in 2021 and finished construction during the ''Long Shutdown 2''. Background Conventional nuclide production experiments are performed by bomba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miniball Experiment
The Miniball experiment is a gamma-ray spectroscopy setup regularly located in the On-Line Isotope Mass Separator, ISOLDE facility at CERN, along with other locations including GSI Helmholtz Centre for Heavy Ion Research, GSI, University of Cologne, Cologne, Paul Scherrer Institute, PSI and Riken, RIKEN (HiCARI). Miniball is a high-resolution germanium detector array, specifically designed to work with low-intensity Radioactive decay, radioactive ion beams post-accelerated by HIE-ISOLDE (High Intensity and Energy-ISOLDE), to analyse gamma radiation emitted by short-lived nuclei. Due to six-fold detector segmentation, Miniball offers a superior Doppler-correction capability with respect to conventional gamma-ray spectrometers using unsegmented detectors. The array has been used for successful Coulomb excitation, Coulomb-excitation and transfer-reaction experiments with exotic beams. Results from Miniball experiments have been used to determine and probe nuclear structure. Miniball h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
