Sec. 19.8] THE SAFE HANDLING OF RADIOACTIVE MATERIALS 471 



rate of 5 million atoms per second, or any other material that disintegrates 

 at the rate of 50 million atoms per sec. 



c. There must be no significant corpuscular radiation at the package sur- 

 face, and gamma radiation must not exceed 10 milliroentgens per 24 hr. 



REFERENCES FOR CHAP. 19 



1. Henriques, F. C, and A. P. Schreiber: Nucleonics, 2, 1 (1948). 



2. Tompkins, P. C, A. Broido, J. D. Teresi: Atomic Energy Commission Report, 

 MDDC-377, 1946. 



3. Morgan, K. Z.: Chan. Eng. News, 25, 3794 (1947). 



4. Atomic Energy Commission Report MDDC-992, 1948. 



5. Wirth, J. E.: Atomic Energy Commission Report MDDC-247, 1946. 



6. Morgan, G. W. : Atomic Energy Commission, Isotopes Division Circular B-3, 1948. 



7. Levy, H. A.: Chem. Eng. News, 24, 3168 (1946). 



8. "Safe Handling of Radioisotopes," report prepared by the National Committee on 

 Radiation Protection, 1948. 



9. Parker, H. M.: "Recent Advances in Biological and Medical Physics," pp. 223-285, 

 Academic Press, Inc., New York, 1948. 



10. Atomic Energy Commission, Standard Safety Requirements, A.E.C. Regulation, 

 Safety No. 3, p. 244, 1947. 



