Alpha decay is by far the most common form of cluster decay where the parent atom ejects a defined daughter collection of nucleons, leaving another defined product behind ( in nuclear fission, a number of different pairs of daughters of approximately equal size are formed ).

Alpha decay is the most likely cluster decay because of the combined extremely high binding energy and relatively small mass of the helium-4 product nucleus ( the alpha particle ).

Alpha decay, like other cluster decays, is fundamentally a quantum tunneling process.

Alpha decay typically occurs in the heaviest nuclides.

Alpha decay can provide a safe power source for radioisotope thermoelectric generators used for space probes and artificial heart pacemakers.

Alpha decay is much more easily shielded against than other forms of radioactive decay.

# REDIRECT Alpha decay

Alpha decay is when a nucleus releases an alpha particle, which is two protons and two neutrons, equivalent to a helium nucleus.

Alpha decay is one example type of radioactivity | radioactive decay, in which an atomic nucleus emits an alpha particle, and thereby transforms ( or ' decays ') into an atom with a mass number 4 less and atomic number 2 less.

Alpha decay occurs when the nucleus ejects an alpha particle ( helium nucleus ).

Alpha particles, protons, and X-rays are emitted during the radioactive decay of unstable atoms.

Alpha particles, produced by the decay of radon and polonium, leave tracks of charge on the silicon wafers when they impact the silicon.

* One recent hypothesis suggests that the lights are formed by a cluster of macroscopic Coulomb crystals in a plasma produced by the ionization of air and dust by Alpha particles during radon decay in the dusty atmosphere.

Alpha decay of heavy elements in the Earth's crust is the source of most naturally occurring helium-4 on Earth.

# REDIRECT Alpha decay

Note that the mass threshold is four times that of 1958 Alpha and that the flux is one fifth as large.

Therefore, N is inversely proportional to the radius cubed and in fair agreement with the inverse 7/2 power derived from 1958 Alpha and 1959 Eta data.

Her husband, who is the son of Alton John Mason of Shreveport, La., and the late Mrs. Henry Cater Parmer, was president of Alpha Tau Omega and a member of Delta Sigma Pi at Lamar Tech, and did graduate work at Rhodes University in Grahamstown, South Africa, on a Rotary Fellowship.

It is similar to the Ancient Greek letter Alpha, from which it derives.

Alpha ( uppercase Α, lowercase α ; Álpha ) is the first letter of the Greek alphabet.

Alpha, both as a symbol and term, is used to refer to or describe a variety of things, including the first or most significant occurrence of something.

Alpha particles have a typical kinetic energy of 5 MeV ( that is, ≈ 0. 13 % of their total energy, i. e. 110 TJ / kg ) and a speed of 15, 000 km / s.

Alpha blending is a convex combination of two colors allowing for transparency effects in computer graphics.

Alpha blending is used in a variety of applications.

Arcturus (; α Boo, α Boötis, Alpha Boötis ) is the brightest star in the constellation Boötes and in fact the northern celestial hemisphere.

With a visual magnitude of − 0. 04, it is the fourth brightest star in the night sky, after − 1. 46 magnitude Sirius, − 0. 86 magnitude Canopus, and − 0. 27 magnitude Alpha Centauri.

However, Alpha Centauri is a bright binary star, whose unresolved components to the naked eye are both fainter than Arcturus.

This makes Arcturus the third brightest individual star, just ahead of Alpha Centauri A ( α Cen A ), whose visual magnitude is − 0. 01.

Antares ( α Scorpii, α Sco, Alpha Scorpii ) is a red supergiant star in the Milky Way galaxy and the sixteenth brightest star in the nighttime sky.

Altair ( Alpha Aquilae, Alpha Aql, α Aquilae, α Aql, Atair ) is the brightest star in the constellation Aquila and the twelfth brightest star in the night sky.

: Alpha testing takes place at developers ' sites, and involves testing of the operational system by internal staff, before it is released to external customers.

) For example, Aldebaran is designated α Tauri ( pronounced Alpha Tauri ), which means " Alpha of the Bull ".

Asimov here is drawing attention to an astronomical curio: the nearest star system to Sol contains a star that has the same spectral type, G2 V, though Alpha Centauri A is a little larger and brighter.

η Canis Majoris is classified as an Alpha Cygni type variable star and its brightness varies from magnitude + 2. 38 to + 2. 48.

Alpha type Stirling engine.

Intrigued, Picard discovers a new type of transwarp gate called a Transwarp Portal, capable of sending fleets of starships from one quadrant to another almost instantly, thus giving reason as to how the Borg managed to get so deep into the Alpha Quadrant undetected.

This type of planetary system are particular interest due to Alpha Centauri A being the closest main-sequence star to Earth but also a binary ( Alpha Centauri AB ) contained within contained within a triple star system.

Initially a type of calutron known as Alpha was used ; it enriched uranium to about 15 % < sup > 235 </ sup > U. A later design, called Beta, further enriched the output of Alpha, optimising the initial design for the smaller quantities of already enriched feedstock.

;: A type A7M2 robot, one of only three production prototypes, who runs Café Alpha in the absence of her owner ( whose family name is Hatsuseno ).

Other notable companies producing this type of equipment include Coinco, International Currency Technologies ( ICT ), Alpha CMS ( Cash Management Solutions ), Astrosystems, Money Controls, Pyramid Technologies, Validation Technologies International ( VTI ), Innovative Technology Ltd ( ITL ), Global Payment Technologies ( GPT ) and Jofemar.

But whilst the Armada title had faithfully approached the concepts of the animated series, this title took liberties with the characters and told a far more expansive arc, even incorporating completely new players, such as a member of the High Council type Autobot named Avalon secretly collaborating with Alpha Q, who, like his animated counterpart, had a separate agenda, but it may never be known if he had the same goals as the anime version.

* Alpha motor neurons ( α-MNs ) innervate extrafusal muscle fibers, the most numerous type of muscle fiber and the one involved in muscle contraction.

This puzzle type is the basis for the word game Alpha Blitz.

Alpha waves are one type of brain waves detected either by electroencephalography ( EEG ) or magnetoencephalography ( MEG ) and predominantly originate from the occipital lobe during wakeful relaxation with closed eyes.

A similar type of conversation system later appeared in a more recent action role-playing game also published by Sega, Alpha Protocol.

An Alpha < sup > 2 </ sup > Canum Venaticorum variable ( or α < sup > 2 </ sup > CVn variable ) is a type of variable star.