beam hole


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beam hole

n
(Nuclear Physics) a hole in the shield of a nuclear reactor through which a beam of radiation, esp of neutrons, is allowed to escape for experimental purposes
References in periodicals archive ?
A thorough equivalent circuit analysis of folded-waveguide slow-wave structure including the effect of the beam hole was proposed by Booske et al.
The effects of the beam hole, the discontinuity of waveguide bend and the change of the narrow side dimension are considered in our model.