HEXAPOLE MAGNET AS A VELOCITY SELECTOR AND POLARIZER FOR NEUTRAL SPIN -1/2 PARTICLES

被引：8

作者：

BRASH, HM

CAMPBELL, DM

FARAGO, PS

RAE, AGA

SIEGMANN, HC

WYKES, JS

机构：

[1] Department of Natural Philosophy, University of Edinburgh

来源：

PROCEEDINGS OF THE ROYAL SOCIETY OF EDINBURG SECTION A-MATHEMATICAL AND PHYSICAL SCIENCES | 1969年 / 68卷

关键词：

D O I：

10.1017/S0080454100008347

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The general paraxial particle-optic properties of the hexapole field are summarized and lens formulae derived. Formulae are given for the transmission as a function of particle velocity and system geometry for geometries appropriate to the case of neutral atom beams and of slow neutron beams respectively. These formulae are used to evaluate the hexapole magnet as a velocity selector and polarizer for atomic beams and as a spin polarizer for neutron beams. Some experimental observations on potassium beams are quoted in support of the theory. © 1969, Royal Society of Edinburgh. All rights reserved.

引用

页码：158 / &