10 C.F.R. § 36.35 Source rack protection.
Title 10 - Energy
If the product to be irradiated moves on a product conveyor system, the source rack and the mechanism that moves the rack must be protected by a barrier or guides to prevent products and product carriers from hitting or touching the rack or mechanism.
Title 10: Energy
PART 36—LICENSES AND RADIATION SAFETY REQUIREMENTS FOR IRRADIATORS
Subpart C—Design and Performance Requirements for Irradiators
§ 36.35 Source rack protection.