positron


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Related to positron: positron emission tomography, neutrino, Positron emission

positron

 [poz´ĭ-tron]
the antiparticle of the electron. When a positron is emitted by a radionuclide it combines with an electron and both undergo annihilation, producing two 511-keV gamma rays traveling in opposite directions. This effect is used in positron emission tomography.

pos·i·tron (β+),

(poz'i-tron),
A subatomic particle of mass and charge equal to the electron but of opposite (that is, positive) charge.
Synonym(s): positive electron

positron

/pos·i·tron/ (poz´ĭ-tron) the antiparticle of an electron; a positively charged electron.

positron

[pos′itron]
a positively charged particle emitted from neutron-deficient radioactive nuclei; the antiparticle of an electron.

pos·i·tron

+) (poz'i-tron)
A subatomic particle of mass and charge equal to the electron but of opposite (i.e., positive) charge.

Positron

One of the small particles that make up an atom. A positron has the same mass and amount of charge as an electron, but the positron has a positive charge.

positron

the antiparticle of the electron. When a positron is emitted by a radionuclide it combines with an electron and both undergo annihilation, producing two 511 keV gamma rays traveling in opposite directions. This effect is used in positron emission tomography (PET).
References in periodicals archive ?
As previously disclosed, upon effectiveness of the reverse stock split, every four hundred (400) shares of issued Positron Corporation common stock will be automatically converted into one (1) share of common stock.
We believe Manhattan Isotope will bring immediate value to Positron and could provide a credible and viable radioisotope processing plan, access to existing non DOE isotope supply, supply chain management, and radioactive waste solutions.
Conceiving of a new, remarkably light variety of water, a pair of chemists calculate that it is possible to replace the hydrogen protons with antimatter particles known as positrons.
The bonds will be part of an overall long-term strategic investment Positron is making in its proposed high energy 70 MeV cyclotron project and radiopharmaceutical manufacturing facility in Noblesville, Indiana.
Positron is ideally positioned to take a leadership role in the nuclear cardiology industry.
Suzanne Kitten, Director of Radioisotope Operations of Positron Corporation, states, "This certification represents an important benchmark for Positron as a quality-committed supplier in the strontium-82 arena.
Alternatively, "the underlying effect might not be the formation of a new particle but the action of a new force that causes a stronger interaction between the positron and the quark than anything in the standard model," says physicist David J.
On June 10, 2011, Positron announced it had entered into a memorandum of understanding (MOU) with the City of Noblesville, signifying its intention to relocate its corporate headquarters, research & development and product manufacturing facilities to Noblesville.
Rooney, Chief Executive Officer of Positron Corporation, states, "We are extremely pleased with our agreement with INR, as it provides Positron with access to the best strontium-82 production technology in the world.
Rooney, CEO of Positron states, "The securing of critical components of the supply chain realized from this project will be considerable; we have built a solid foundation in our core cardiac imaging products and continue to vertically expand into medical isotopes and radiopharmaceuticals, allowing us to offer a complete solution for cardiac PET imaging.
We believe through our unique position and ability to integrate the cardiac PET supply chain, Positron will be able to increase the supply of key resources, which have limited the sector's ability to expand; enabling Positron to meet the demands of the global cardiac PET market.
To create antihydrogen, they needed to bring these two components together so that a positron ends up orbiting an antiproton nucleus.