DHS 157.03(290)(290) “Radiation incident” means the loss of control of a radioactive source or materials or the unintended exposure of an individual to radiation that exceeds the limits in this chapter.

DHS 157.03(291)(291) “Radiation installation” means any location or facility where radiation machines are used or where radioactive material is produced, transported, stored, disposed of or used for any purpose.

DHS 157.03(292)(292) “Radiation machine” means any device capable of producing radiation, except those devices with radioactive material as the only source of radiation.

DHS 157.03(293)(293) “Radiation room” means a shielded room in which irradiations take place. Underwater irradiators do not have radiation rooms.

DHS 157.03(294)(294) “Radiation safety officer” or “RSO” means an individual who has the knowledge and training to apply appropriate radiation regulations and has been assigned the responsibility for the overall radiation safety program by the registrant or licensee and is identified on a registration or a specific license.

DHS 157.03(295)(295) “Radiation safety officer for industrial radiography” means an individual with the responsibility for the overall radiation safety program for a licensee or registrant and who meets the requirements of s. DHS 157.44 (2).

DHS 157.03(295m)(295m) “Radiation safety officer for medical use” means an individual that meets the requirements of s. DHS 157.61 (7) (a) or who is identified as a radiation safety officer on a department, NRC or another agreement state medical use license or other equivalent license or permit recognized by the department for similar types and uses of radioactive material.

DHS 157.03(296)(296) “Radiation therapy simulation system” means a radiographic, CT or fluoroscopic x-ray system intended for localizing the volume to be exposed during radiation therapy and confirming the position and size of the therapeutic irradiation field.

DHS 157.03(297)(297) “Radioactive drug” means any chemical compound containing radioactive material that may be used on or administered to patients or human research subjects as an aid in the diagnosis, treatment or prevention of disease or other abnormal condition.

DHS 157.03(298)(298) “Radioactive marker” means radioactive material placed in the well-bore or on a structure intended for subsurface use for the purpose of depth determination or direction orientation.

DHS 157.03(299)(299) “Radioactive material” means any solid, liquid or gas that emits radiation spontaneously.

DHS 157.03(300)(300) “Radioactivity” means the transformation of unstable atomic nuclei by the emission of radiation.

DHS 157.03(301)(301) “Radiograph” means an image which is created directly or indirectly by radiation and results in a permanent record, either film or electronically stored image.

DHS 157.03(302)(302) “Radiographer” means any individual who performs or who, in attendance at the site where the sources of radiation are being used, personally supervises industrial radiographic operations and who is responsible to the licensee or registrant for assuring compliance with the requirements of this chapter and the conditions of the license or registration.

DHS 157.03(303)(303) “Radiographer certification” means written approval received from a certifying entity stating that an individual has satisfactorily met the equivalent radiation safety, testing and experience criteria in s. DHS 157.44 (3) (a).

DHS 157.03(304)(304) “Radiographer’s assistant” means any individual who under the direct supervision of a radiographer, uses radiographic exposure devices, sources of radiation, related handling tools or radiation survey instruments in industrial radiography.

DHS 157.03(305)(305) “Radiographic exposure device” means any instrument containing a sealed source fastened or contained within the instrument, in which the sealed source or shielding thereof may be moved or otherwise changed, from a shielded to unshielded position for purposes of making a radiographic exposure.

DHS 157.03(306)(306) “Radiographic imaging system” means any system whereby a permanent or semi-permanent image is recorded on an image receptor by the action of ionizing radiation.

DHS 157.03(307)(307) “Radiographic operations” means all activities performed with a radiographic exposure device or with a radiation machine. Activities include using, transporting, except by common or contract carriers or storing at a temporary job site, performing surveys to confirm the adequacy of boundaries, setting up equipment and any activity inside restricted area boundaries. Transporting a radiation machine is not considered a radiographic operation.

DHS 157.03(308)(308) “Radionuclide” means a radioactive form of an element.

DHS 157.03(309)(309) “Rating” means the operating limits as specified by the component manufacturer.

DHS 157.03(310)(310) “Redundant beam monitoring system” means a combination of 2 dose monitoring systems in which each system is designed to terminate irradiation under a pre-selected number of dose monitor units.

DHS 157.03(311)(311) “Reference man” means a hypothetical aggregation of human physical and physiological characteristics determined by international consensus. These characteristics may be used by researchers and public health workers to standardize results of experiments and to relate biological insult to a common base.

DHS 157.03(312)(312) “Reference plane” means a plane that is displaced from and parallel to the tomographic plane.

DHS 157.03(313)(313) “Regulations of the U.S. Department of Transportation” means the regulations in 49 CFR 100 to 189 and 390 to 397.

DHS 157.03(314)(314) “Rem” means the special unit of any of the quantities expressed as dose equivalent.

DHS 157.03 NoteNote: The dose equivalent in rem is equal to the absorbed dose in rad multiplied by the quality factor. One rem equals 0.01 sievert.