CaltechAUTHORS
  A Caltech Library Service

A Velocity Filter for Electrons and Ions

Smythe, William R. (1926) A Velocity Filter for Electrons and Ions. Physical Review, 28 (6). pp. 1275-1286. ISSN 0031-899X. https://resolver.caltech.edu/CaltechAUTHORS:20140107-134454414

[img]
Preview
PDF - Published Version
See Usage Policy.

925Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20140107-134454414

Abstract

If a charged particle, moving along the x-axis with a velocity v, encounters successively two identical alternating electric fields of frequency ν, which are everywhere perpendicular to the x-axis, it will emerge from the last field undisplaced and traveling in the original direction under the following conditions: (1) Each field has two similar halves whose distance between centers is a; (2) The distance between the fields, center to center, is D=sa/n, where s and n are odd integers; (3) The velocity of the particle is v_0=2aν/n. The distribution about the velocity v_0 is computed when particles enter and leave the system through slits of width y_0 on the x-axis. The results show that the emergent beam can be confined to a very narrow velocity range.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://prola.aps.org/abstract/PR/v28/i6/p1275_1PublisherArticle
http://dx.doi.org/10.1103/PhysRev.28.1275DOIArticle
Additional Information:© 1926 The American Physical Society. Received 16 July 1926; published in the issue dated December 1926. The author wishes to thank Dr. Bowen for valuable suggestions and Professor Epstein for checking some of the equations.
Issue or Number:6
Record Number:CaltechAUTHORS:20140107-134454414
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140107-134454414
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:43249
Collection:CaltechAUTHORS
Deposited By: John Wade
Deposited On:07 Jan 2014 22:09
Last Modified:03 Oct 2019 06:05

Repository Staff Only: item control page