SECTION 252:410-11-52. Beam-limiting devices

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Systems of 1 MeV or more must have adjustable or interchangeable beam-limiting devices. The devices must transmit no more than 2 percent of the useful beam at the normal treatment distance for the portion of the useful beam which is to be attenuated by the beam-limiting device. The neutron component of the useful beam is not to be included in this requirement.

[Source: Added at 17 Ok Reg 1136, eff 6-1-00]

                    
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