Title :
High homogeneity solenoidal magnet for cesium frequency standard
Author :
Costanzo, G. ; DeMarchi, A. ; Nervi, M. ; Repetto, M.
Author_Institution :
Dipartimento di Elettronica, Politecnico di Torino, Italy
fDate :
7/1/1994 12:00:00 AM
Abstract :
In Cs frequency standards a zone of highly uniform magnetic flux density, lower in value of 0.1 T, is required. The magnetic homogeneity value is tied to the overall accuracy of the standard and, for an accuracy of 10-14, a design value 1 p.p.m. is required. For this purpose a resistive solenoid 700 mm long with a bore radius of 32.5 mm has been designed and built. This paper reports the design process, the measurements on the manufactured magnet and the shimming strategy used to reach the homogeneity target
Keywords :
caesium; electromagnets; magnetic flux; measurement standards; solenoids; 0.1 T; 65 mm; 700 mm; Cs; Cs frequency standards; bore radius; design process; design value; high homogeneity solenoidal magnet; highly uniform magnetic flux density; homogeneity target; magnetic homogeneity value; manufactured magnet; resistive solenoid; shimming strategy; Boring; Frequency; Influenza; Magnetic analysis; Magnetic field measurement; Magnetic flux; Magnetic shielding; Manufacturing; Process design; Solenoids;
Journal_Title :
Magnetics, IEEE Transactions on
