DHS 157.73(17)(a)14.14. Amount of water added to the pool to determine if the pool is leaking.
DHS 157.73(17)(a)15.15. Electrical wiring on required safety systems for radiation damage.
DHS 157.73(17)(a)16.16. Pool water conductivity measurements and analysis as required by sub. (18) (b).
DHS 157.73(17)(b)(b) Malfunctions and defects found during inspection and maintenance checks shall be repaired within time frames specified in the license or license application.
DHS 157.73(18)(18)Pool water purity.
DHS 157.73(18)(a)(a) A pool water purification system shall maintain the conductivity of the pool water below 20 microsiemens per centimeter under normal circumstances. If pool water conductivity rises above 20 microsiemens per centimeter, a licensee shall take prompt actions to lower the pool water conductivity and shall take corrective actions to prevent future recurrences.
DHS 157.73(18)(b)(b) A licensee shall measure the pool water conductivity frequently enough, but no less than weekly, to assure that the conductivity remains below 20 microsieverts per centimeter. Conductivity meters must be calibrated at least annually, at intervals not to exceed 13 months.
DHS 157.73(19)(19)Attendance during operation.
DHS 157.73(19)(a)(a) Both an irradiator operator and at least one other person who is trained on how to respond and prepared to promptly render or summon assistance if the access control alarm sounds shall be present on site during any of the following times:
DHS 157.73(19)(a)1.1. Whenever the irradiator is operated using an automatic product conveyor system.
DHS 157.73(19)(a)2.2. Whenever the product is moved into or out of the radiation room when the irradiator is operated in a batch mode.
DHS 157.73(19)(b)(b) A person who has received the training on how to respond to alarms described in sub. (12) (g) shall be on site at a panoramic irradiator at which product is exposed to radiation with no movement of the product.
DHS 157.73(19)(c)(c) At an underwater irradiator, an irradiator operator shall be present at the facility whenever the product is moved into or out of the pool. Persons who move the product into or out of the pool of an underwater irradiator need not be qualified as irradiator operators, but shall have received the training described in sub. (12) (f) and (g). Static irradiations may be performed without a person present at the facility.
DHS 157.73(20)(20)Entering and leaving the radiation room.
DHS 157.73(20)(a)(a) Upon first entering the radiation room of a panoramic irradiator after an irradiation, the irradiator operator shall use a survey meter to determine that the source has returned to its fully shielded position. The operator shall check the functioning of the survey meter with a radiation check source prior to entry.
DHS 157.73(20)(b)(b) Before exiting from and locking the door to the radiation room of a panoramic irradiator prior to a planned irradiation, the irradiator operator shall do all the following:
DHS 157.73(20)(b)1.1. Visually inspect the entire radiation room to verify that no one else is in it.
DHS 157.73(20)(b)2.2. Activate a control in the radiation room that permits the sources to be moved from the shielded position only if the door to the radiation room is locked within a preset time after setting the control.
DHS 157.73(20)(c)(c) During a power failure, the area around the pool of an underwater irradiator may not be entered without using an operable and calibrated radiation survey meter unless the over-the-pool monitor required by sub. (5) (b) is operating with backup power.
DHS 157.73(21)(21)Irradiation of explosive or flammable materials.
DHS 157.73(21)(a)(a) Irradiation of explosive material is prohibited unless a licensee has received prior written authorization from the department. Authorization may not be granted unless a licensee demonstrates that detonation of the explosive would not rupture the sealed sources, injure personnel, damage safety systems or cause radiation overexposures of personnel.
DHS 157.73(21)(b)(b) Irradiation of more than small quantities of flammable material with a flash point below 140°F is prohibited in panoramic irradiators unless a licensee has received prior written authorization from the department. Authorization may not be granted unless a licensee demonstrates that a fire in the radiation room could be controlled without damage to sealed sources or safety systems and without radiation overexposures of personnel.
DHS 157.73(22)(22)Records and retention periods. A licensee shall maintain all the following records at the irradiator for the periods specified:
DHS 157.73(22)(a)(a) A copy of the license, the license conditions, documents incorporated into the license by reference and amendments thereto until superseded by new documents or until the department terminates the license for documents not superseded.
DHS 157.73(22)(b)(b) Records of each individual’s training, tests and safety reviews provided to meet the requirements of sub. (12) (a) to (d), (f) and (g) until 3 years after the person terminates work.
DHS 157.73(22)(c)(c) Records of the annual evaluations of the safety performance of irradiator operators required by sub. (12) (e) for 3 years after the evaluation.
DHS 157.73(22)(d)(d) A copy of the current operating and emergency procedures required by sub. (13) until superseded or until the department terminates the license. Records of the radiation safety officer’s review and approval of changes in procedures as required by sub. (13) (c) 3. shall be retained for 3 years from the date of the change.
DHS 157.73(22)(e)(e) Dosimetry results required by sub. (14) (a) and (b) until the department terminates the license.
DHS 157.73(22)(f)(f) Records of radiation surveys required by sub. (15) for 3 years from the survey date.