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:
Oct. 31, 1989
Filed:
Oct. 26, 1988
Applicant:
Inventors:
Raymond D McIntyre, Los Altos Hills, CA (US);
Stanley W Johnsen, Palo Alto, CA (US);
Assignee:
Varian Associates, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250397 ; 250305 ; 3133631 ;
Abstract
A beam of charged particles is scattered by a thin foil and the flux at two angles .theta..sub.1 and .theta..sub.2, is sampled to yield an exponential function of the respective energy difference, E(.theta..sub.2)-E(.theta..sub.1). For .theta..sub.1 =0.degree., a signal representative of the energy stability of the beam is obtained and compared with a reference to form an error signal for application to the accelerator for stabilizing the beam energy and/or providing an energy interlock.