United States Nuclear Regulatory Commission - Protecting People and the Environment

Health Physics Questions and Answers - Question 103

Question 103: 10 CFR 20.1302 (b) (2) (ii) refers to "the dose from external sources."

(a) What are "external sources"?

(b) Are both (1) shine from the facility or from stored contaminated materials and sources, as well as (2) cloud shine from effluents to be included?


(a) "External sources" are radiation sources outside the body.

(b) Yes.

(Reference: 10 CFR 20.1302).

Page Last Reviewed/Updated Tuesday, October 31, 2017