The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 1980
Filed:
Mar. 29, 1978
Karl L Brown, Cupertino, CA (US);
Varian Associates, Inc., Palo Alto, CA (US);
Abstract
In a magnetic deflection system for deflecting a beam of charged particles, through a given beam bending angle at least four beam deflecting stations are serially arranged along the beam path for bending the beam through the beam bending angle .PSI.. Each of the beam bending stations includes a magnet for producing a static magnetic field component of a strength and of a shape so that the beam is deflected free of transverse geometric aberrations of second order. The beam deflection system also includes sextupole magnetic field components of such a strength and location so as to eliminate second order chromatic aberrations of the deflected beam without introducing second order geometric aberrations, whereby a magnetic beam deflection system is provided which is free of both transverse chromatic and geometric aberrations of second order.