tsoon tuumarajatise või mõne muu kiirgusallika ümber, kuhu juurdepääs on lubatud kontrollitud tingimustel ja milles viibimine on tavaliselt keelatud
zone which may be established around a nuclear facility or other radiation source to which access is permitted under controlled conditions and in which residence is normally prohibited
the area surrounding the reactor where the reactor licensee has the authority to determine all activities, including exclusion or removal of personnel and property
