DHS 157.03(260)(260) “Pool irradiator” means any irradiator where the sources are stored or used in a pool of water including panoramic wet-source-storage irradiators and underwater irradiators. DHS 157.03(261)(261) “Portable x-ray equipment” means x-ray equipment designed to be hand-carried. DHS 157.03(262)(262) “Position indicating device” or “PID” means a device on dental x-ray equipment used to indicate the beam position and to establish a definite source-surface distance from the skin. DHS 157.03 NoteNote: A position indicating device may or may not incorporate or serve as a beam-limiting device.
DHS 157.03(263)(263) “Positive beam limitation” or “PBL” means the automatic or semi-automatic adjustment of an x-ray beam to the size of the selected image receptor, whereby exposures cannot be made without such adjustment. DHS 157.03(264)(264) “Positive pressure respirator” means a respirator in which the pressure inside the respiratory inlet covering exceeds the ambient air pressure outside the respirator. DHS 157.03(264m)(264m) “Positron emission tomography/computed tomography” or “PET/CT” means a dual modality imaging assembly comprised of two distinct components, one using radioactive material for imaging and the other using an x-ray source. DHS 157.03(264r)(264r) “Positron emission tomography radionuclide production facility” or “PET facility” means a facility operating a cyclotron or accelerator for the purpose of producing PET radionuclides within a consortium for noncommercial distribution among its associated members for medical use. DHS 157.03(265)(265) “Powered air-purifying respirator” or “PAPR” means an air-purifying respirator that uses a blower to force the ambient air through air-purifying elements to the inlet covering. DHS 157.03(266)(266) “Practical examination” means a demonstration through application of the safety rules and principles in industrial radiography including use of all procedures and equipment to be used by radiographic personnel. DHS 157.03(267)(267) “Preceptor” means an individual who provides, directs or verifies training and experience required for an individual to become an authorized user, an authorized medical physicist, an authorized nuclear pharmacist, a radiation safety officer for medical use, or an associate radiation safety officer. DHS 157.03(268)(268) “Prescribed dosage” means the specified activity or a range of activities of a drug containing radioactive material as documented by any of the following means: DHS 157.03(268)(b)(b) Under directions of the authorized user for procedures not requiring a written directive. DHS 157.03(269)(a)(a) For gamma stereotactic radiosurgery, the total dose as documented in the written directive. DHS 157.03(269)(b)(b) For teletherapy, the total dose and dose per fraction as documented in the written directive. DHS 157.03(269)(c)(c) For brachytherapy, either the total source strength and exposure time or the total dose, as documented in the written directive. DHS 157.03(269)(d)(d) For remote afterloaders, the total dose and dose per fraction as documented in the written directive. DHS 157.03(270)(270) “Pressure demand respirator” means a positive pressure atmosphere-supplying respirator that admits breathing air to the facepiece when the positive pressure is reduced inside the facepiece by inhalation. DHS 157.03(271)(271) “Primary dose monitoring system” means a system which will monitor the useful beam during irradiation and which will terminate irradiation when a pre-selected number of dose monitor units have been delivered. DHS 157.03(272)(272) “Primary protective barrier” means the material, excluding filters, placed in the useful beam. DHS 157.03(273)(273) “Principal activities” means activities authorized by the license that are essential to achieving the purpose for which the license was issued or amended. “Principal activities” do not include storage during which no licensed material is accessed for use or disposal and activities incidental to decontamination or decommissioning. DHS 157.03(274)(274) “Product conveyor system” means a system for moving the product to be irradiated to, from and within the area where irradiation takes place. DHS 157.03(275)(275) “Protective apron” means an apron made of radiation absorbing materials used to reduce radiation exposure to the wearer. DHS 157.03(276)(276) “Protective barrier” means a primary or secondary protective barrier of radiation absorbing material or materials used to reduce radiation exposure. DHS 157.03(277)(277) “Protective glove” means a glove made of radiation absorbing materials used to reduce radiation exposure and that surrounds the hand and fingers. DHS 157.03(278)(278) “Public dose” means the dose received by a member of the public from exposure to sources of radiation released by a licensee or registrant or to any other source of radiation under the control of a licensee or registrant. It does not include occupational dose, dose received from background radiation, from any medical administration the individual has received, from exposure to individuals administered radioactive material and released under s. DHS 157.62 (8) or from voluntary participation in medical research programs. DHS 157.03(279)(279) “Pulsed dose-rate remote afterloader” or “PDR” means a device that uses a single source capable of delivering dose rates in the high dose-rate range, but has both of the following characteristics: