Field-component statistics of externally illuminated overmoded cavities

The (lambda) distribution describes the statistical behavior of the measured square of the electric or magnetic field in an externally illuminated overmoded cavity. An approximation of the individual phase-quadrature fields is derived from this distribution. Numerical evaluation of this approximation to the squared phase-quadrature fields convolved with itself shows good agreement (+-1% away from the tail of the distribution) with the original (lmabda) distribution. Comparison of theoretically derived cable currents with experimental data exhibits considerably better than factor-of-two correspondence