using permanent magnets only

Introduced: September 1968

Last revised: January 2006

Full Title

Details of electron-optical or ion-optical arrangements common to two or more basic types of discharge tubes or lamps > Arrangements for focusing or reflecting ray or beam > Magnetic lenses > using permanent magnets only

Classification Context

Section:: ELECTRICITY
Class:: ELECTRIC ELEMENTS
Subclass:: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS