Gamma shielding requirements for plutonium-238 and polonium-210
In: http://hdl.handle.net/2027/mdp.39015094998401
"Mound Laboratory, Miamisburg, Ohio, operated for United States Atomic Energy Commission, U.S. Government Contract No. AT-33-1-GEN-53." ; "MLM-1200 ; TID-4500 (28th Ed.) ; UC-36 Aerospace Safety." ; "Date: May 15, 1964 ; Issued: November 13, 1964." ; Includes bibliographical references (p. 9). ; U.S. Atomic Energy Commission Contract ; Mode of access: Internet.