DHS 157.73(23)(a)4. 4. Failure of the cable or drive mechanism used to move the source racks.

DHS 157.73(23)(a)5. 5. Inoperability of the access control system.

DHS 157.73(23)(a)6. 6. Detection of radiation source by the product exit monitor.

DHS 157.73(23)(a)7. 7. Detection of radioactive contamination attributable to licensed radioactive material.

DHS 157.73(23)(a)8. 8. Structural damage to the pool liner or walls.

DHS 157.73(23)(a)9. 9. Water loss or leakage from the source storage pool, greater than the irradiator pool design parameters submitted by the licensee or applicant.

DHS 157.73(23)(a)10. 10. Pool water conductivity exceeding 100 microsiemens per centimeter.

DHS 157.73(23)(b) (b) For any event in par. (a), a licensee shall provide a telephone report within 24 hours that meets the requirements of s. DHS 157.32 (2) and a written report within 30 days that meets the requirements of s. DHS 157.32 (3).

DHS 157.73 History History: CR 01-108: cr. Register July 2002 No. 559, eff. — see Note at the start of the chapter; CR 06-021: am. (15) (c), (22) (k) and (m) Register October 2006 No. 610, eff. 11-1-06; correction in (15) (d), (16) (c) made under s. 35.17, Stats., Register January 2018 No. 745; CR 22-015: am. (12) (d) (intro.), (e), (g), (14) (a), (c), (18) (b), (22) (e) Register June 2023 No. 810, eff. 7-1-23.

subch. VIII of ch. DHS 157 Subchapter VIII — X-ray Device Requirements

DHS 157.74 DHS 157.74 Administrative requirements.

DHS 157.74(1) (1) General. The registrant shall be responsible for directing the operation of the x-ray systems under their administrative control. The registrant or the registrant’s agent shall ensure the requirements of this section are met. An x-ray system shall meet the provisions of this subchapter to be operated for diagnostic or screening purposes. All images, hard copy or electronic, shall be interpreted by a licensed practitioner for the patient record.

DHS 157.74(2) (2) Radiation safety requirements.

DHS 157.74(2)(a) (a) Each individual who operates x-ray equipment shall be instructed in the safe operating procedures for each specific device and be competent in the safe use of the equipment as determined by the registrant.

DHS 157.74(2)(b) (b) A chart shall be available near the control panel of a diagnostic x-ray system that specifies, for all examinations performed with that system, all of the following information:

DHS 157.74(2)(b)1. 1. Patient’s body part to be examined and anatomical size, body part thickness or, for pediatrics, age versus technique factors to be utilized.

DHS 157.74(2)(b)2. 2. Type and size of the image receptor or film-screen combination to be used.

DHS 157.74(2)(b)3. 3. Type and focal distance of the grid to be used, if any.

DHS 157.74(2)(b)4. 4. Except for dental intra-oral radiography, source to image receptor distance to be used.

DHS 157.74(2)(b)5. 5. Type and location of placement of patient shielding to be used.

DHS 157.74 Note Note: This chart may be electronic in the form of pre-programmed controls.

DHS 157.74(2)(c) (c) The registrant of a facility shall create and make available to x-ray operators written safety procedures, including patient holding procedures and any restrictions of the operating technique required for the safe operation of the particular x-ray system. The operator shall be able to demonstrate familiarity with these procedures.

DHS 157.74(2)(d) (d) Only the staff, ancillary personnel or other persons required for the medical procedure or training may be in the room during the radiographic exposure. Other than the patient, the following applies to all persons in the room:

DHS 157.74(2)(d)1. 1. All persons shall be positioned such that no part of the body will be struck by the useful beam unless protected by not less than 0.5 millimeter lead equivalent material. If the hands must be in the beam and unprotected, a ring badge on the hand in the beam shall be worn unless contraindicated by the clinical procedure.

DHS 157.74(2)(d)2. 2. All persons, including any patients who cannot be removed from the room, shall be protected from the direct scatter radiation by whole body protective barriers of not less than 0.25 millimeter lead equivalent material or shall be so positioned that all parts of the person’s body are at least 2 meters from all of the following:

DHS 157.74(2)(d)2.a. a. The tube head.

DHS 157.74(2)(d)2.b. b. The direct beam.

DHS 157.74(2)(d)2.c. c. The nearest part of the examined patient’s body being struck by the useful beam.

DHS 157.74(2)(d)3. 3. Operators of c-arm configuration units which do not operate at a tube current in excess of 0.2 mA are exempt from the requirement to wear a leaded apron, provided the operator wears a personal dosimeter as required under s. DHS 157.25 (2).