DHS 157.03(198)(d)(d) Other radioactive material in which the radioactive material is distributed throughout and the estimated average specific activity does not exceed 30 times the value for exempt material activity concentration determined under ch. DHS 157 Appendix O. DHS 157.03(199)(199) “Low specific activity – II” or “LSA-II material” means either of the following: DHS 157.03(199)(a)(a) Water with tritium concentration up to 0.8 terabecquerel per liter (20.0 Ci/L). DHS 157.03(199)(b)(b) Other material in which the radioactive material is distributed throughout, and the average specific activity does not exceed 10-4 A2/g for solids and gases and 10-5 A2/g for liquids. DHS 157.03(200)(200) “Low specific activity – III” or “LSA-III material” means solids, such as consolidated wastes or activated materials, excluding powders, that satisfy the requirements of 10 CFR 71.77, and for which all of the following apply: DHS 157.03(200)(a)(a) The radioactive material is distributed throughout a solid or a collection of solid objects, or is essentially uniformly distributed in a solid compact binding agent, for example, concrete, bitumen or ceramic. DHS 157.03(200)(b)(b) The radioactive material is relatively insoluble, or it is intrinsically contained in a relatively insoluble material, so that, even under loss of packaging, the loss of radioactive material per package by leaching, when placed in water for 7 days, would not exceed 0.1 A2. DHS 157.03(200)(c)(c) The estimated average specific activity of the solid, excluding any shielding material, does not exceed 2 x 10-3 A2/g. DHS 157.03(201)(201) “Low toxicity alpha emitters” means natural uranium, depleted uranium, natural thorium; uranium-235, uranium-238, thorium-232, thorium-228 or thorium-230 when contained in ores or physical or chemical concentrates or tailings; or alpha emitters with a half-life of less than 10 days. DHS 157.03(203)(203) “Mammography” means radiography of the breast, but does not include radiography of the breast performed during invasive interventions for localization or biopsy procedures. DHS 157.03(204)(204) “Management” means the chief executive officer or other individual having the authority to manage, direct or administer the licensee’s or registrant’s activities, or those persons’ delegate or delegates. DHS 157.03(205)(205) “Manual brachytherapy” means a type of brachytherapy in which the radioactive sources are manually inserted either into the body cavities that are in close proximity to a tumor or directly into the tumor volume. DHS 157.03 NoteNote: Examples of radioactive sources are seeds and ribbons.
DHS 157.03(207)(207) “Maximum line current” means the root-mean-square current in the supply line of an x-ray machine operating at its maximum rating. DHS 157.03(208)(208) “Medical event” means an administration of radiation or radioactive material to a patient or human research subject that requires reporting to the department. DHS 157.03(209)(209) “Medical institution” means an organization in which medical disciplines are practiced. DHS 157.03(210)(210) “Medical physicist” means an individual with any of the following qualifications: DHS 157.03(210)(a)(a) Certified by the American board of radiology or the American board of health physics in one or more of the following: DHS 157.03(210)(b)(b) Certified by the American board of medical physics in radiation oncology physics. DHS 157.03(211)(211) “Medical use” means the intentional internal or external administration of radioactive material or the radiation from radioactive material to patients or human research subjects under the supervision of an authorized user. DHS 157.03(212)(212) “Medium dose-rate remote afterloader” or “MDR” means a device that delivers a dose rate of greater than 2 gray (200 rads) but less than 12 gray (1200 rads) per hour at the point or surface where the dose is prescribed.