Code of Massachusetts Regulations › 105 CMR - DEPARTMENT OF PUBLIC HEALTH › Title 105 CMR 120.000 - The Control of Radiation › REPORTS › Section 120.679 - Detection of Leaking Sources

Current through Register 1525, July 5, 2024
(A) Each
				dry-source-storage sealed source must be tested for leakage at intervals not to
				exceed six months using a leak test kit or method approved by the Agency, the
				Commission, an Agreement State, or a Licensing State. In the absence of a
				certificate from a transferor that a test has been made within the six months
				before the transfer, the sealed source may not be used until tested. The test
				must be capable of detecting the presence of 200 becquerels (0.005 microcurie)
				of radioactive material and must be performed by a person approved by the
				Agency, the Commission, an Agreement State, or a Licensing State to perform the
				test.
(B) For pool irradiators,
				sources may not be put into the pool unless the licensee tests the sources for
				leaks or has a certificate from a transferor that leak test has been done
				within the six months before the transfer. Water from the pool must be checked
				for contamination each day the irradiator operates. The check may be done
				either by using a radiation monitor on a pool water circulating system or by
				analysis of a sample of pool water. If a check for contamination is done by
				analysis of a sample of pool water, the results of the analysis must be
				available within 24 hours. If the licensee uses a radiation monitor on a pool
				water circulating system, the detection of above normal radiation levels must
				activate an alarm. The alarm set-point must be set as low as practical, but
				high enough to avoid false alarms. The licensee may reset the alarm set-point
				to a higher level if necessary to operate the pool water purification system to
				clear up contamination in the pool if specifically provided for in written
				emergency procedures.
(C) If a
				leaking source is detected, the licensee shall arrange to remove the leaking
				source from service and have it decontaminated, repaired, or disposed of by an
				Agency, Commission, Agreement State, or Licensing State licensee that is
				authorized to perform these functions. The licensee shall promptly check its
				personnel, equipment, facilities, and irradiated product for radioactive
				contamination. No product may be shipped until the product has been checked and
				found free of contamination. If a product has been shipped that may have been
				inadvertently contaminated, the licensee shall arrange to locate and survey
				that product for contamination. If any personnel are found to be contaminated,
				decontamination must be performed promptly. If contaminated equipment,
				facilities, or products are found, the licensee shall arrange to have them
				decontaminated or disposed of by an Agency, Commission, Agreement State, or
				Licensing State licensee that is authorized to perform these functions. If a
				pool is contaminated, the licensee shall arrange to clean the pool until the
				contamination levels do not exceed the appropriate concentration in
				105
				CMR 120.296:
Appendix B
,
				Table II, Column 2. (
See
105 CMR
				120.282 for reporting
				requirements.)