Deuteron

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Deuteron

The nucleus of the atom of heavy hydrogen, 2H (deuterium). The deuteron d is composed of a proton and a neutron; it is the simplest multinucleon nucleus. Its binding energy is 2.227 MeV; that is, this is the amount of energy which must be added to a deuteron for it to dissociate into a proton and a neutron. Deuterons are much used as projectiles in nuclear bombardment experiments. See Nuclear reaction

Deuteron

 

the nucleus of the hydrogen atom isotope deuterium; mass number, 2. It is designated by2H, D, or d. A deuteron consists of one proton and one neutron. Its mass is 2.014102 atomic mass units; its nucleon binding energy, 2.22452 ± 0.00010 MeV; its spin, 1 (in ħ units); its magnetic moment, 0.857411 ± 0.000019 nuclear magnetons; and its nuclear electrical quadrupole moment, (2.738 ± 0.014)10-27 cm2.

Since the deuteron is the simplest nucleus containing more than one nucleon, the study of its properties has made it possible to determine the action radius of nuclear forces and to conclude that the interaction between a proton and a neutron in the nucleus does not have the character of a central force but depends on the mutual orientation of their spins. The nucleon spins in the deuteron are parallel. Deuterons (in contrast to protons) absorb neutrons poorly and, at the same time, owing to the closeness in their respective masses, strongly decelerate them. Deuterons are widely used in experimental nuclear physics as bombarding particles and as targets (for example, in the studies of nuclear reactions).

deuteron

[′düd·ə‚rän]
(nuclear physics)
The nucleus of a deuterium atom, consisting of a neutron and a proton. Designated d. Also known as deuton.
References in periodicals archive ?
Each combination of a neutron and a proton produced both a deuterium nucleus, or deuteron, and a neutral pion particle.
Known as a deuteron, this simple nucleus has roughly the same dumbbell structure as a molecule consisting of two atoms.
In the case of the deuteron, one might expect it to look more like six quarks than two nucleons.
The particular implications of this study to deuteron cluster will be discussed later.
Within the modified formalism of Glauber's multiple scattering theory, we have studied the elastic scattering of deuteron with nuclei in the mass region 6 [?
The only reasonable explanation we see for this fact is the fusion of two deuterons [deuterium nuclei]," Bertin told the workshop.
In the current experiment, deuterons -- the nuclei of deuterium, an isotope of hydrogen--come out of the accelerator with 0.
The p-p reaction, wherein two protons combine to make a deuteron, while relying on positron and neutrino emission, would come to play a vital role in (4) He synthesis within low mass stars [374, p.