A detailed experimental and theoretical comparison of the angular and energy dependencies of grid transmission

Grid transmission characteristics have been predicted, with good agreement demonstrated between experiment and theory. Differences between the present work and an earlier theoretical analysis have been noted. It is shown that comparison between experiment and theory can lead to a sensitive method for determining grid parameters. Generally, the derived grid parameters deviate somewhat from manufacturer supplied data. Use of the manufacturer's nominal parameters can lead to large errors in predicting grid transmission.