octupole

octupole

[′äk·tə‚pōl]
(physics)
Two electric or magnetic quadrupoles having charge distributions of opposite signs and separated from each other by a small distance.
Any device for controlling beams of electrons or other charged particles, consisting of eight electrodes or magnetic poles arranged in a circular pattern, with alternating polarities; commonly used to correct aberrations of quadrupole systems.
References in periodicals archive ?
4] represent pairing, angular momentum, quadrupole, octupole and hexadecupole interactions respectively between the bosons; EPS is the boson energy; and PAIR, ELL, QQ, OCT, HEX are the strengths of the pairing, angular momentum, quadrupole, octupole and hexadecupole interactions respectively (see Table 1).
Regarding the magnets, India supplied the Sextupole, Decapole and Octupole Magnets used in the LHC.
8) up to the order 3, and it is shown how the toroid dipole appears together with the charge octupole moment, the magnetic quadrupole moment, and the first mean square radius of the electric dipole.
A principal component of ALPHA's atom trap is a superconducting octupole magnet proposed and prototyped in Berkeley Lab's AFRD.
3] dipoles separated by infinitesimal distance 6 Octupole Equal and opposite 1/[r.
The main component is an octupole (eight-magnetic-pole) magnet whose fields keep anti-atoms away from the walls of the trap and thus prevent them from annihilating.
Pipin, Dipole, Quadrupole, Octupole, and Dipole-Octupole Polarizabilities at Real and imaginary Frequencies for H, He, and [H.
The measured B(El) strengths are of the same order as those reported for El inter-band transitions in nuclei with a substantial dipole moment arising from octupole collectivity.
Static and Dynamic Non-Axial Octupole Deformations Suggested by SKYRME-HF and Self-consistent RPA Calculations.
The properties of nuclear rotational bands built on octupole degrees of freedom have been extensively studied within various microscopic as will as macroscopic model approaches in nuclear structure [1-6].
DELTA]I=1 staggering in octupole bands of light actinides: "Beat" patterns.