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 ?
The order, worth over EUR 50 million, is for the construction of 33 superconducting multiplets consisting of different magnet configurations to deviate (dipolar magnets) and focus (quadrupole, sextupole and octupole magnets) the trajectory of the particles that pass through them.
Static and Dynamic Non-Axial Octupole Deformations Suggested by SKYRME-HF and Self-consistent RPA Calculations.
Regarding the magnets, India supplied the Sextupole, Decapole and Octupole Magnets used in the LHC.
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.
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.
4] represent pairing, angular momentum, quadrupole, octupole and hexadecupole interactions between the bosons; EPS is the boson energy; and PAIR, ELL, QQ, OCT, HEXis the strengths ofthe pairing, angular momentum, quadrupole, octupole and hexadecupole interactions.
4] are the boson number, pairing, angular momentum, quadrupole, octupole and hexadecapole operators defined as: