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:
May. 24, 2016
Filed:
Nov. 15, 2012
Ion Beam Applications, Louvain-la-Neuve, BE;
Patrick Verbruggen, Orbaix, BE;
Ion Beam Applications, Louvain-la-Neuve, BE;
Abstract
The present invention relates to an RF system () able to generate a voltage for accelerating charged particles in a synchrocyclotron, the RF system () including a resonant cavity () comprising a conducting enclosure () within which are placed a conducting pillar () of which a first end is linked to an accelerating electrode () able to accelerate the charged particles, a rotary variable capacitor () coupled between a second end opposite from the first end of the pillar () and the conducting enclosure (), the said capacitor () comprising fixed electrodes () and a rotor () comprising mobile electrodes (), the fixed electrodes () and the mobile electrodes () forming a variable capacitance able to vary a resonant frequency of the resonant cavity () in a cyclic manner over time, an exterior layer of the rotor () having a conductivity of greater than 20,000,000 S/m at 300 K. At least one part of the exterior surface () of the rotor () is a surface possessing a normal total emissivity of greater than 0.5 and less than 1, thereby allowing better cooling of the rotor and/or making it possible to dispense with a system for cooling the rotor by conduction and/or by convection.