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:
Dec. 01, 1992
Filed:
Mar. 19, 1990
Junichi Hirota, Hitachi, JP;
Masatsugu Nishi, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An acceleration device for charged particles has an acceleration cavity through which passes a beam of the particles. High frequency power from a suitable source is transmitted to the cavity via a suitable transmission means (antenna) to transmit the energy to the particles and so accelerate them. The transmission means is controlled by a suitable control to control the coupling constant of the transmission means when power is applied. Also, the device may have a looped conductor in the cavity controlled by the control to couple to the field in the cavity and to extract power from the field, thereby to control the de-tuning of the applied power relative to the power transmitted to the particles. By controlling the coupling constant and/or the de-tuning, power may be transmitted efficiently to the beam of particles.