NAC459.408. “Attenuation block” defined.

Latest version.

“Attenuation block” means a block or stack having the dimensions 20 cm by 20 cm by 3.8 cm, of type 1100 aluminum alloy or other materials having equivalent attenuation.

[Bd. of Health, Radiation Control Reg. § 6.2.4, eff. 2-28-80]

                    
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