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Mode of radioactive decay
Double electron capture is a type of double beta decay, a permissible decay mode of an atomic nucleus. For a nuclide (A, Z) with a number of nucleons
Double_electron_capture
Type of radioactive decay
orbital electrons (double electron capture). If the mass difference between the parent and daughter atoms is more than 1.022 MeV/c2 (two electron masses)
Double_beta_decay
Radioisotope of iodine
created by neutron capture on nearly-stable 124Xe (it undergoes double electron capture with a half-life orders of magnitude larger than the age of the
Iodine-125
radioactive isotopes: double electron capture has been observed in 124Xe (half-life 1.1 ± 0.2stat ± 0.1sys×1022 years), and double beta decay in 136Xe (half-life
Isotopes_of_xenon
Nuclide that does not undergo radioactive decay
neodymium-143) double beta decay – 55 nuclides beta decay – tantalum-180m electron capture – tellurium-123, tantalum-180m double electron capture isomeric transition
Stable_nuclide
its daughter xenon-130 in rocks) in 2001, presumably decaying by double electron capture with a half-life of (0.5–2.7)×1021 years (about 1011 times the
Isotopes_of_barium
Chemical element with atomic number 54 (Xe)
primordial 124Xe, which undergoes double electron capture with a half-life of 1.1×1022 yr, and 136Xe, which undergoes double beta decay with a half-life of
Xenon
Method in mass spectrometry
Electron-capture dissociation (ECD) is a method of fragmenting gas-phase ions for structure elucidation of peptides and proteins in tandem mass spectrometry
Electron-capture_dissociation
Dark matter research project
reported in Nature the first direct observation of two-neutrino double electron capture in xenon-124 nuclei. The measured half-life of this process, which
XENON
Chemical element with atomic number 20 (Ca)
most common isotope 40Ca is also doubly magic and could undergo double electron capture to 40Ar, but this has likewise never been observed. Calcium is
Calcium
Chemical element with atomic number 36 (Kr)
among all isotopes for which decay has been observed; it undergoes double electron capture to 78Se). In addition, about thirty unstable isotopes and isomers
Krypton
Theorized type of radioactive decay
searched for by the CMS experiment. Double beta decay Heidelberg-Moscow controversy Neutrinoless double electron capture Grotz, K.; Klapdor, H.V. (1990).
Neutrinoless double beta decay
Neutrinoless_double_beta_decay
Type of radioactive decay
same. In electron capture, an inner atomic electron is captured by a proton in the nucleus, transforming it into a neutron, and an electron neutrino is
Beta_decay
Chemical element with atomic number 48 (Cd)
and 116Cd (double beta decay, half-life is 2.69×1019 y). The other three are 106Cd, 108Cd (both double electron capture), and 114Cd (double beta decay);
Cadmium
04×1015 years) and 116Cd (double beta decay, half-life 2.69×1019 years). The other three are 106Cd, 108Cd (double electron capture), and 114Cd (double beta decay);
Isotopes_of_cadmium
Group of low-reactive, gaseous chemical elements
all have very long lives (> 1021 years) and can undergo double electron capture or double beta decay. Radon has no stable isotopes; its longest-lived
Noble_gas
Chemical element with atomic number 26 (Fe)
nuclear spin (−1⁄2). The nuclide 54Fe theoretically can undergo double electron capture to 54Cr, but the process has never been observed and only a lower
Iron
Physics experiment
demonstrated that electrons show the same behavior, which was later extended to atoms and molecules. The experiment belongs to a general class of "double path" experiments
Double-slit_experiment
with equal numbers of protons and neutrons Believed to undergo double electron capture to 40Ar with a half-life no less than 1022 y Cosmogenic nuclide
Isotopes_of_calcium
from trends of neighboring nuclides (TNN). Believed to undergo double electron capture to 36S (lightest theoretically unstable nuclide for which no evidence
Isotopes_of_argon
experiment's ability to measure it. Nubase value, for alpha decay only. Double electron capture limited only to 6.1×1014 (ground state) by Ordered by half-life
List_of_nuclides
Diagrams for the bonding between atoms of a molecule and lone pairs of electrons
also called Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDs) – are diagrams that show the bonding
Lewis_structure
Type of electron microscope
electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons.
Scanning_electron_microscope
Elementary particle with negative charge
The electron (e− , or β− in nuclear reactions) is a subatomic particle whose electric charge is negative one elementary charge. It is an elementary particle
Electron
Bending of electron beams due to electrostatic interactions with matter
Electron diffraction is a generic term for phenomena associated with changes in the direction of electron beams due to elastic interactions with atoms
Electron_diffraction
Chemical element with atomic number 58 (Ce)
expected to undergo double electron capture to isotopes of barium, and the heaviest isotope 142Ce is expected to undergo double beta decay to 142Nd or
Cerium
Type of nuclear fusion that occurs at high densities & low temperatures
it allows for the formation of light nuclei from the process of double electron capture ( Mg 40 + 2 e ⟶ Ne 34 + 6 n + {\displaystyle {\ce {^40Mg + 2e ->
Pycnonuclear_fusion
Nuclide made up of alpha particles
64, 84, 92, and 96 theoretically can continue one more step by double electron capture (to 64Ni, 84Kr, 92Zr, and 96Mo respectively), but this has never
Alpha_nuclide
Type of radioactive decay
by electron capture. For low-energy decays, electron capture is energetically favored by 2mec2 = 1.022 MeV, since the final state has an electron removed
Positron_emission
Lithographic technique that uses a scanning beam of electrons
Electron-beam lithography (often abbreviated as e-beam lithography or EBL) is the practice of scanning a focused beam of electrons to draw custom shapes
Electron-beam_lithography
Imaging and diffraction using electrons that pass through samples
microscopes, owing to the smaller de Broglie wavelength of electrons. This enables the instrument to capture fine detail—even as small as a single column of atoms
Transmission electron microscopy
Transmission_electron_microscopy
Type of experiment in accelerator physics
second electron is captured by the projectile) by ion impact and dissociative capture in p + H2 collisions, where the capture of an electron to the projectile
Kinematically complete experiment
Kinematically_complete_experiment
Emissions from unstable atomic nuclei
produces antineutrinos). In electron capture, some proton-rich nuclides were found to capture their own atomic electrons instead of emitting positrons
Radioactive_decay
Technique to study materials that have unpaired electrons
Electron paramagnetic resonance (EPR) or electron spin resonance (ESR) spectroscopy is a method for studying materials that have unpaired electrons. The
Electron paramagnetic resonance
Electron_paramagnetic_resonance
Elementary particle with extremely low mass
cloud-chamber measurements of the electron and the recoil of the nucleus. In 1942, Wang Ganchang first proposed the use of beta capture to experimentally detect
Neutrino
Smallest unit of a chemical element
accompanied by the emission of an electron and an antineutrino, while proton to neutron transition (except in electron capture) causes the emission of a positron
Atom
American physicist, academic and researcher
Defaccio, Margrethe (22 November 1984). "Serches for β+, β+/E and double electron-capture decay". Physics Letters B. 148 (1): 31–34. doi:10.1016/0370-2693(84)91604-6
Eric_B._Norman
Transformation of a nuclide to another
nuclear orbital in the same way that the pair of electrons in the helium atom occupy a filled 1s electron orbital). Consequently, alpha particles appear
Nuclear_reaction
Subatomic particle with no charge
by the capture of a lepton by the nucleon. The transformation of a proton to a neutron inside of a nucleus is possible through electron capture: p+ + e−
Neutron
Subatomic particle
mu (μ) used to represent it) is an elementary particle similar to the electron, with an electric charge of −1 e and a spin of 1/2 ħ, but with a much
Muon
System of connected p-orbitals with delocalized electrons in a molecule
one electron (which corresponds to half of a formal "double bond"), two electrons (which corresponds to a delocalized "lone pair"), or zero electrons (which
Conjugated_system
Part of a molecule responsible for its color
conjugated pi-system. In a conjugated pi-system, electrons are able to capture certain photons as the electrons resonate along a certain distance of p-orbitals
Chromophore
Process by which atoms or molecules acquire charge by gaining or losing electrons
process is known as electron capture ionization. Positively charged ions are produced by transferring an amount of energy to a bound electron in a collision
Ionization
Dosimetry Double-exchange mechanism Double-slit experiment Double Chooz Double beta decay Double diffusive convection Double electron capture Double inverted
Index_of_physics_articles_(D)
Biological process to convert light into chemical energy
That loosened electron is taken up by the primary electron-acceptor molecule, pheophytin. As the electrons are shuttled through an electron transport chain
Photosynthesis
Core of an atom composed of nucleons
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
Atomic_nucleus
Device that controls current between electrodes
A vacuum tube, electron tube, thermionic valve (British usage), or tube (North America) is a device that controls electric current flow in a high vacuum
Vacuum_tube
Subatomic particle with positive charge
mass of a neutron and approximately 1836 times the mass of an electron (the proton-to-electron mass ratio). Protons and neutrons, each with a mass of approximately
Proton
Set of nuclides that cannot undergo beta decay
half-lives (over 1015 years). Theoretically, 123Te can only undergo electron capture to 123Sb, whereas 180mTa can decay in both directions, to 180Hf or
Beta-decay_stable_isobars
Chemical compound
excites their electrons. Since the chlorophyll a molecules only capture certain wavelengths, organisms may use accessory pigments to capture a wider range
Chlorophyll_a
mass from 58 to 89. The most stable of these is 68Ge, decaying by electron capture with a half-life of 271.05 days, whose daughter is the medically useful
Isotopes_of_germanium
American public spaceflight company
publicly traded aerospace manufacturer and launch service provider. Its Electron orbital rocket launches small satellites and has successfully completed
Rocket_Lab
Rule for predicting stability of elements
observationally stable. It is predicted that 123Te should undergo electron capture to form 123Sb, but this decay has not yet been observed; 180mTa should
Mattauch_isobar_rule
Tabular arrangement of the chemical elements
that they are actually inside it, which would make them vulnerable to electron capture. Even if eighth-row elements can exist, producing them is likely to
Periodic_table
Process for producing pictures with a microscope
photographic micrograph is a photomicrograph, and one taken with an electron microscope is an electron micrograph. A micrograph contains extensive details of microstructure
Micrograph
numbers 90–92 decay by electron emission resulting in niobium isotopes, whereas those below by positron emission or electron capture, resulting in yttrium
Isotopes_of_zirconium
Nucleosynthesis pathway
supernovae (including electron-capture supernovae), and now mergers of neutron stars. Immediately after the severe compression of electrons in a Type II supernova
R-process
Bound state of three charged particles
"lose" an electron to become an exciton and an exciton can "capture" an electron to become a trion. If there is no time between the loss and capture of the
Trion_(physics)
Digital imaging circuit
image acquisition begins, allowing the conversion of incoming photons into electron charges at the semiconductor-oxide interface; the CCD is then used to read
Charge-coupled_device
Field of physics that studies atomic interactions
with atomic physics, which studies the atom as a whole, including its electrons. Discoveries in nuclear physics have led to applications in many fields
Nuclear_physics
Exotic particle made of an antiproton and positron
accelerator were shot at xenon clusters, producing electron-positron pairs. Antiprotons can capture positrons with probability about 10−19, so this method
Antihydrogen
Astrophysical phenomenon
type called an electron capture supernova. ... In an electron capture supernova, as the core runs out of fuel, gravity forces electrons in the core into
Supernova
Scientific instrument for observing small objects
are the fluorescence microscope, electron microscope (both the transmission electron microscope and the scanning electron microscope) and various types of
Microscope
Quantum mechanical phenomenon
tunnelling of a particle out of the nucleus (an electron tunnelling into the nucleus is electron capture). This was the first application of quantum tunnelling
Quantum_tunnelling
Non-mathematical introduction
"count" or particle (e.g. photon or electron) at a time. The quantum system acts as a wave when passing through the double slits, but as a particle when it
Introduction to quantum mechanics
Introduction_to_quantum_mechanics
Technique to investigate atomic structures using neutron scattering
by interacting with the electron cloud of atoms, this limits their application as they can be scattered strongly from electrons. While being neutral, neutrons
Neutron_diffraction
Atoms composed of exotic particles
subatomic particles have been replaced by other particles. For example, electrons may be replaced by other negatively charged particles such as muons (muonic
Exotic_atom
Vacuum tube used to display images
cathode ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams, which are directed and controlled to display images
Cathode_ray_tube
Solid (crystalline) phase of electrons
crystal is the solid (crystalline) phase of electrons first predicted by Eugene Wigner in 1934. A gas of electrons moving in a uniform, inert, neutralizing
Wigner_crystal
American health physicist and inventor
pursued researches that involved electron swarm measurement, swarm‐beam techniques and swarm drift to determine electron capture cross sections in heavy water
George_Samuel_Hurst
radioisotope in greater abundance than a stable one. It has been claimed that electron capture of 123Te was observed, but more recent measurements of the same team
Isotopes_of_tellurium
MOS field-effect transistor with more than one gate
1997). "Self-aligned (Top and bottom) double-gate MOSFET with a 25 nm thick silicon channel". International Electron Devices Meeting. IEDM Technical Digest
Multigate_device
State of matter
thus consists of a significant portion of charged particles (ions and/or electrons). While rarely encountered on Earth, it is estimated that 99.9% of all
Plasma_(physics)
Lithography using 13.5 nm UV light
The electron blur is also affected by total internal reflection from the top surface of the resist film. A more realistic description of the electron blur
Extreme ultraviolet lithography
Extreme_ultraviolet_lithography
Mass spectrometry technique
spectrometry Photodissociation Blackbody infrared radiative dissociation Electron capture dissociation Collision-induced dissociation is another, more common
Infrared multiphoton dissociation
Infrared_multiphoton_dissociation
Nuclear physics classification method
neutrons or protons decay by beta decay (including positron decay), electron capture, or other means, such as spontaneous fission and cluster decay. Data
Even_and_odd_atomic_nuclei
Nucleosynthesis pathway
The slow neutron-capture process, or s-process, is a series of reactions in nuclear astrophysics that occur in stars, particularly asymptotic giant branch
S-process
Medical intervention
77 Br. It has a half-life of 57 hours and undergoes electron capture: the K-electron is captured by a proton in an unstable nucleus, creating a K hole
Auger_therapy
Electronic device
the quantum well. In general the capture probability p c ≤ 1 {\displaystyle p_{c}\leq 1} , so an injected electron might sometimes pass over the quantum
Quantum well infrared photodetector
Quantum_well_infrared_photodetector
Hypothetical subatomic particle
boson with a mass near 17 MeV/c2 — which is about 33 times heavier than an electron, but still very light for a boson. This is where it gets the name "X17"
X17_particle
namely atomic nuclei and electrons. Many more types of subatomic particles have been found. Most such particles (but not electrons) were eventually found
History_of_subatomic_physics
Underground neutrino physics experiment
physics goals include measurement of neutrinos or antineutrinos from: Proton-electron-proton (pep) and carbon-nitrogen-oxygen (CNO) cycles within the Sun to
SNO+
Type of radioactive decay
that zinc-54 can also undergo double proton decay. Nuclear drip line Diproton (a particle possibly involved in double proton decay) Free neutron Neutron
Proton_emission
Type of two-dimensional quasiparticle
"bosons", which like to stick together. A commonly known fermion is the electron, which transports electricity; and a commonly known boson is the photon
Anyon
Method of microscopic imaging
aberrations. Ptychography has been demonstrated with visible light, X-rays, electrons and extreme-ultraviolet radiation, enabling quantitative phase contrast
Ptychography
Maximum theoretical efficiency of a solar cell
the energy of red light, that energy is not captured by devices with a single p-n junction. The electron is ejected with higher energy when struck by
Shockley–Queisser_limit
Scientific theory
Linnett double-quartet theory (LDQ) is a method of describing the bonding in molecules which involves separating the electrons depending on their spin
Linnett_double-quartet_theory
Component of an atomic nucleus
turns into a neutron (producing other particles) through β+ decay or electron capture. And inside still other nuclides, both protons and neutrons are stable
Nucleon
Device that converts images into electronic signals
solid state imagers". 1976 International Electron Devices Meeting. Technical Digest International Electron Device Meeting (IEDM), Washington, DC, Dec
Image_sensor
Composite subatomic particle
antiparticles are expected to follow the same pattern, but they are difficult to capture and study, because they immediately annihilate on contact with ordinary
Hadron
Electromagnetic radiation due to deceleration of charged particles
charged particle when deflected by another charged particle, typically an electron by an atomic nucleus. The moving particle loses kinetic energy, which is
Bremsstrahlung
Single-molecule sequencing technology
Transmission electron microscopy DNA sequencing is a single-molecule sequencing technology that uses transmission electron microscopy techniques. The
Transmission electron microscopy DNA sequencing
Transmission_electron_microscopy_DNA_sequencing
Long conducting wires which can act as electrical motors or generators
the diagram, point A, represents the electron collection end. The bottom of the tether, point C, is the electron emission end. Similarly, V a n o d e
Electrodynamic_tether
nuclei and electrons. There is therefore no obstacle to placing nuclei closer to each other than electron orbitals—the regions occupied by electrons bound
History of Solar System formation and evolution hypotheses
History_of_Solar_System_formation_and_evolution_hypotheses
Transversely excited atmospheric gas laser
voltage lets the electrons drift towards the anode before they can generate an avalanche. Electrophilic molecules capture electrons before they can generate
TEA_laser
Device used in television cameras
light. The remaining electrons are then deflected back into the anode, captured by a special grid, or deflected back into an electron multiplier. Low-velocity
Video_camera_tube
Concept in quantum mechanics
carriers (electrons and holes in a semiconductor), resulting in a discrete energy spectrum for them. Semiconductor quantum wells can be realized in double heterostructures
Quantum_well
High-capacity electrochemical capacitor
pseudocapacitance additional to the double-layer capacitance. Pseudocapacitance is achieved by Faradaic electron charge-transfer with redox reactions
Supercapacitor
Chemical element with atomic number 101 (Md)
events arising from its electron-capture daughter 256Fm. The first one was identified with a "hooray" followed by a "double hooray" and a "triple hooray"
Mendelevium
Electron diffraction using very short pulses
Ultrafast electron diffraction (UED), also known as femtosecond electron diffraction, is a pump-probe experimental method based on the combination of optical
Ultrafast electron diffraction
Ultrafast_electron_diffraction
DOUBLE ELECTRON-CAPTURE
DOUBLE ELECTRON-CAPTURE
Surname or Lastname
English
English : variant of Dibble.Altered spelling of German Deibel or Deubel.
Surname or Lastname
French
French : from a reduced form of the Germanic personal name Hildo (see Hildebrand, Houde).French : habitational name from any of several places in Normandy called La Houle or Les Houles, named in Old French with the singular or plural of houle ‘cave’.English : variant of Hole.
Male
English
English name derived from the vocabulary word, from Latin nobilis, NOBLE means "noble."
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : variant of Double.In some cases, probably an altered spelling of South German Dobel or Döbel, a topographic name for someone who lived in a gorge or deep valley, Middle High German southern dialect tobel.
Girl/Female
American, Hindu, Indian
Selection
Boy/Male
Hindu
Born during the rainy season, Money
Boy/Male
Muslim
Selection, Choice
Boy/Male
Arabic, Hindu, Indian, Muslim
Election; Last Dream
Boy/Male
Biblical
Election; he that is chosen.
Boy/Male
Hindu, Indian
Money; Russian Currency
Boy/Male
Arabic
Electric Light
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : nickname from Old French doubel ‘twin’ (literally ‘double’, from Late Latin duplus, classical Latin duplex, from du(o) ‘two’ + plek, a root meaning ‘fold’).
Male
English
Anglicized form of Irish Gaelic Dubhghall, DOYLE means "black stranger."Â
Boy/Male
Arabic, Muslim, Sindhi
Selection; Choice
Girl/Female
Christian, Hindu, Indian, Kannada
Money
Surname or Lastname
English
English : from the medieval personal name Dobbe, one of several pet forms of Robert in which the initial letter was altered. Compare Hobbs.
Girl/Female
Greek
Sparkling. The fiery sun. Mythological daughter of Agamemnon. In literature she was a central...
Girl/Female
Australian, Danish, Greek
Bright; Shining
Boy/Male
Muslim/Islamic
Selection choice
Surname or Lastname
English
English : possibly a variant of Goble or Gobel.Perhaps an Americanized spelling of French Gobeil.
DOUBLE ELECTRON-CAPTURE
DOUBLE ELECTRON-CAPTURE
Boy/Male
English
Girl/Female
Czechoslovakian Russian
Industrious.
Surname or Lastname
English
English : variant spelling of Blewett.
Girl/Female
Hindu, Indian, Marathi
Sacred Thread; Mother
Girl/Female
Gujarati, Indian, Kannada, Tamil
Win; Happy
Boy/Male
Hindu
Lord Krishna and Lord Shiva
Girl/Female
Assamese, Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi
Light Beautiful; Kind Hearted; Goddess Laksmi; Spark of Light
Female
Japanese
(アリス) Japanese form of English Alice, ARISU means "noble sort."
Boy/Male
Welsh
Legendary son of Beli.
Girl/Female
Greek Muslim
From Sheba.
DOUBLE ELECTRON-CAPTURE
DOUBLE ELECTRON-CAPTURE
DOUBLE ELECTRON-CAPTURE
DOUBLE ELECTRON-CAPTURE
DOUBLE ELECTRON-CAPTURE
n.
Among compositors, a doublet (see Doublet, 2.); among pressmen, a sheet that is twice pulled, and blurred.
n.
The act of one that doubles; a making double; reduplication; also, that which is doubled.
a.
Double; doubled; reduplicative; repeated.
adv.
Twice; doubly.
n.
An election held by itself, not at the time of a general election.
a.
Pertaining to an election or to electors.
a.
Alt. of Electro-metrical
n.
The state of being double or doubled.
a.
To increase by adding an equal number, quantity, length, value, or the like; multiply by two; to double a sum of money; to double a number, or length.
a.
Pertaining to electro-ballistics.
adv.
In a double degree; doubly.
n.
Double-quick time, step, or march.
n.
Alt. of Electro-puncturing
n.
Double beer; strong beer.
a.
The act of choosing; choice; selection.
n.
Amber; also, the alloy of gold and silver, called electrum.
a.
Alt. of Electro-dynamical
a.
Producing electro-motion; producing, or tending to produce, electricity or an electric current; causing electrical action or effects.
imp. & p. p.
of Double