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:
Feb. 06, 2024
Filed:
Mar. 27, 2020
Varian Medical Systems, Inc., Palo Alto, CA (US);
Anuj K. Purwar, Fremont, CA (US);
James E. Clayton, Saratoga, CA (US);
Dragos E. Constantin, Los Altos, CA (US);
Gard E. Meddaugh, Mountain View, CA (US);
Matthew C. Schmidt, Henderson, NV (US);
Mark E. Trail, Menlo Park, CA (US);
Flavio Poehlmann, Fremont, CA (US);
VARIAN MEDICAL SYSTEMS, INC., Palo Alto, CA (US);
Abstract
A method performed by a medical device, includes: providing a permanent magnetic field by a permanent magnet; operating an electromagnet to provide a first electromagnetic field with a first electromagnetic field value; and operating the electromagnet to provide a second electromagnetic field with a second electromagnetic field value; wherein the first electromagnetic field and the permanent magnetic field forms a first total magnetic field with a first total magnetic field value, and wherein the second electromagnetic field and the permanent magnetic field forms a second total magnetic field with a second total magnetic field value; wherein the first total magnetic is formed when an electric field in an accelerator or an energy level of a particle beam has a first value, and wherein the second total magnetic field is formed when the electric field in the accelerator or the energy level of the particle beam has a second value.