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Oklahoma Administrative Code (Last Updated: March 11, 2021) |
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TITLE 252. Department of Environmental Quality |
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Chapter 410. Radiation Management |
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Subchapter 11. Use of X-Rays and /or Particles for Therapeutic Purposes in the Healing Arts and Veterinary Medicine |
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Part 5. THERAPEUTIC SYSTEMS OF 1 MEV AND ABOVE |
SECTION 252:410-11-58. Termination of irradiation by dose monitoring systems during stationary beam therapy
Latest version.
- Dose monitoring systems in systems of 1 MeV or more must be able to terminate irradiation in the following ways:(1) Each primary dose monitoring system must terminate irradiation when the pre-selected number of dose monitor units has been detected by the system;(2) For pre-1989 systems in which the original design included a secondary dose monitoring system, the system must be capable of terminating irradiation when not more than 15 percent or 40 dose monitor units above the pre-selected number of dose monitor units set at the control panel have been detected by the secondary system; and(3) For post-1989 systems, the secondary dose monitoring system must be capable of terminating irradiation when not more than 10 percent or 25 dose monitor units set at the control panel have been detected by the secondary system. Post-1989 systems must have also have an indicator on the treatment control panel that shows which dose monitoring system has terminated irradiation.