1930 Proc. IRE 18 435 The complete exciter unit is enclosed with a metal grill in addition to the individual shielding compartment for the various stages.

1933 Pract. Wireless 4 Feb. 962/2 A heavy flexible metal shielding fits tightly over these bakelite shells, and through the shells ordinary rubber-covered lead-in wire is threaded.

1975 D. G. Fink Electronics Engineers' Handbk. xvii. 31 The Wagner ground connection..can be used in place of shielding at lower frequencies if the utmost precision is not required.

1945 Hawley & Leifson Atomic Energy 185 There was not sufficient radioactive emanation to be dangerous within a radius of fifty feet of the pile; notwithstanding this, precautionary shielding would be necessary in a locomotive unit.

1950 Chemical Engin. Progress XLVI. 109/1 To critical size must be added enough shielding to make reactors safe, and the amount of shielding required..is of considerable volume and weight.

1958 W. K. Mansfield Elem. Nucl. Physics v. 45 The shielding of a reactor will be designed to absorb the γ-rays rather than α and β-rays.

1974 Encycl. Brit. Macropædia XIII. 319/1 The shielding of the reactor must keep heat losses and radiation levels external to the reactor down to acceptable levels.