designed and manufactured in such a way as to ensure that the characteristics and the quantity of radiation emitted can be controlled and/or adjusted; and
go ndearfar agus go monarófar na feistí sa chaoi is go n-áiritheofar gur féidir saintréithe agus cainníocht na radaíochta arna hastú a rialú agus/nó a mhodhnú; agus