Design of gradient magnet system for cesium frequency standard

Author

Costanzo, G. ; Nervi, M. ; Orlando, R. ; Repetto, M.

Author_Institution

Dipartimento di Elettronica, Politecnico di Torino, Italy

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2624

Lastpage

2627

Abstract

The design process and the magnetic measurements on a permanent magnet asymmetric dipole to be used for magnetic selection in a Cs beam frequency standard is presented. The design target is to create a magnetic induction gradient of 50 T/m in a zone extending 10 mm in width and 50 mm in length. The computer aided design process is outlined and design predictions are compared with measurements on the manufactured units. A process of automated optimization of the magnet pole piece profile in order to increase the Cs beam optics with particular attention to the transmission of atoms is presented and the first results obtained, leading to an increase of a factor of three in Cs transmission, are discussed

Keywords

CAD; caesium; electromagnetic induction; ion beams; ion optics; magnetic variables measurement; measurement standards; permanent magnets; Cs; Cs beam frequency standard; Cs beam optics; Cs transmission; automated optimization; computer aided design process; design process; gradient magnet system; magnet pole piece profile; magnetic induction gradient; magnetic measurements; magnetic selection; permanent magnet asymmetric dipole; Atom optics; Atomic beams; Computer aided manufacturing; Frequency; Magnetic variables measurement; Manufacturing processes; Measurement standards; Optical beams; Permanent magnets; Process design;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305817

Filename

305817