ion density

ion density

[′ī‚än ‚den·səd·ē]
(physics)
The number of ions per unit volume. Also known as ion concentration.
References in periodicals archive ?
Caption: Figure 3: Temperature dependencies of the frat band voltage shift [DELTA][V.sub.FB] (1-3) and the ones of the reduced mobile ion density [N.sub.I] (5, 6) for the MOS stacks with different values of [N.sub.ss], [cm.sup.-2] x e[V.sup.-1]: (1, 2, 4)--5 x [10.sup.11]; (3, 5)--4 x [10.sup.12].
Here, [n.sub.i] is the ion density and is equal to the plasma density [n.sub.p], [n.sub.] is the electron beam density, e is the unit charge, r is the radial coordinate, [e.sub.r] is the radial unit vector, and [e.sub.[theta]] is the azimuthal unit vector.
[Na.sup.+] ion density was seen to increase more slowly than that of [Cl.sup.-] ions.
Ion density of ion generating device made specifically for clinical research
The focus of ALPHA is to develop research tools to explore the intermediate ion density regime of [10.sup.18]-[10.sup.23] ions/[cm.sup.3] (at Lawson conditions).
In order to balance the Deuterium ion density in the chamber, ion guns are attached to the vacuum chamber.
(1964) calculated refractive index and absorption coefficient of weakly ionised air and showed that with the increase of ion density, the refractive index decreases.
The positive ion density was a moderate 2,700/[cm.sup.3] and the negative ion density was 2,400/[cm.sup.3].
* determine the mechanisms and ion density level parameters required to kill 50 percent of bacteria (LD-50) for inactivating salmonella.
where E is the electric field, q is the charge magnitude on the ions, [[Rho].sub.o] is the ion density, N is the charge of the ion, and [Tau] is the radius of ion.
The Ulysses data indicate that the doughnut's ion density is only half that detected by the Voyager mission.
A negative ion density is achieved within the zone that is physically incapable of supporting air borne particles.