Columbia University cyclotron, showing the new concentric line radiofrequency system

Columbia University cyclotron, showing the new concentric line radiofrequency system. The radiofrequency power is fed from the oscillator to the background through two small concentric lines up the large concentric lines which extend horizontally from the accelerating chamber at the right. The accelerating electrodes within the chamber are supported on the inner conductors of the two large concentric lines which form, in effect, a quarter wavelength line. The low radiofrequency voltages fed to these large lines are 'stepped-up' to very high voltages on the electrodes within the chamber. The concentric lines give marked improvement in efficiency and produce higher voltage at higher radiofrequencies than systems used heretofore. In addition, all equipment is grounded and shielded during operations., Credit Line: Research Corporation, courtesy of AIP Emilio Segrè Visual Archives
Abstract/Description: Columbia University cyclotron, showing the new concentric line radiofrequency system. The radiofrequency power is fed from the oscillator to the background through two small concentric lines up the large concentric lines which extend horizontally from the accelerating chamber at the right. The accelerating electrodes within the chamber are supported on the inner conductors of the two large concentric lines which form, in effect, a quarter wavelength line. The low radiofrequency voltages fed to these large lines are 'stepped-up' to very high voltages on the electrodes within the chamber. The concentric lines give marked improvement in efficiency and produce higher voltage at higher radiofrequencies than systems used heretofore. In addition, all equipment is grounded and shielded during operations.
Subject(s): Laboratories
Equipment and supplies
Cyclotrons
Electromagnetism
Nuclear physics--Research
Columbia University
Date Created: circa 1938
Credit Line: Research Corporation, courtesy of AIP Emilio Segrè Visual Archives
Catalog ID: Columbia University F7