Structural shielding design and evaluation for medical use of X-rays and gamma rays of energies up to 10 MeV : recommendations of the National Council on Radiation Protection and Measurements.
Washington : The Council, 1976.
vi, 126 págs. : ilustraciones ; 23 cm.
Serie: NCRP report ; no. 49
ISBN: 0913392316
"Supersedes NCRP report no. 34."
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