RESEARCH ON NOISE IN CROSSED FIELD DEVICES
Abstract
Effort continu d on the optical system. It is found that the noise measured at 1 mhz appears for B/Bc = 1.2 when the collectors are far from the gun (11 cm) and for B/Bc = 2 near the gun (4 cm). Three collectors were mounted and the three correlation coefficients measured; it was shown that the correlation increases alo g the drift pac . Spectrums were plotted from 0.1 mhz up to 230 mhz which show that the low frequency components of the noise appear mainly far from the gun. The Brillouin flo was analyzed to understand what happens when the emitted beam arrives in a low dc field region. Tests show that it cannot be stated that the line, sole or collector currents have no influence on the gun noise because the impedance between these electrodes and the cathode is not negligible. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1962
- Accession Number
- AD0275199