Section R12-1-501. Definitions

“Access panel” means any panel that is designed to be removed or opened for maintenance or service purposes, opened using tools, and used to provide access to the interior of the cabinet x-ray unit.

“Annual refresher safety training” means a review conducted or provided by the licensee for its employees on radiation safety aspects of industrial radiography. The review shall include, as applicable, the results of internal inspections, new procedures or equipment, new or revised state rules, accidents or errors that have occurred, and provide opportunities for employees to ask safety questions.

“Aperture” means any opening in the outside surface of the cabinet x-ray unit, other than a port, which remains open during generation of x-radiation.

“Associated equipment” means equipment used in conjunction with a radiographic exposure device that drives, guides, or comes in contact with the source.

“Certifying entity” means an independent certifying organiza- tion that complies with the requirements in Appendix A of this Article, or requirements of the NRC or another Agreement State, that are equivalent to the requirements in parts II and III of Appendix A.

“Collimator” means a radiation shield that is placed on the end of the guide tube or directly onto a radiographic exposure device to restrict the size of the radiation beam when the sealed source is positioned to make a radiographic exposure.

“Control (drive) cable” means the cable that is connected to the source assembly and used to drive the source to and from the exposure location.

“Control (drive) mechanism” means a device that enables the source assembly to be moved to and from the exposure device.

“Control tube” means a protective sheath for guiding the con- trol cable. The control tube connects the control drive mecha- nism to the radiographic exposure device.

“Door” means any barrier that is designed to be movable or opened for routine operation purposes, not opened using tools, and used to provide access to the interior of the cabinet x-ray unit.

“Exposure head” means a device that places the gamma radi- ography sealed source in a selected working position.

“Ground fault” means an accidental electrical grounding of an electrical conductor.

“Guide tube (projection sheath)” means a flexible or rigid tube (i.e., “J” tube) for guiding the source assembly and the attached control cable from the exposure device to the expo- sure head. The guide tube may also include the connections necessary for attachment to the exposure device and to the exposure head.

“Hands-on experience” means accumulation of knowledge or skill in any area relevant to radiography.

“Independent certifying organization” means an independent organization that meets all of the requirements in Appendix A.

“Lay-barge radiography” means industrial radiography per- formed on any water vessel used for laying pipe.

“Port” means any opening in the outside surface of the cabinet x-ray unit that is designed to remain open, during generation of x-rays, for conveying material being irradiated into and out of the cabinet, or for partial insertion of an object for irradia- tion whose dimensions do not permit complete insertion into the cabinet x-ray unit.

“Practical examination” means a demonstration, through prac- tical application of safety rules and principles of industrial radiography, including use of all radiography equipment and knowledge of radiography procedures.

“Radiographer certification” means written approval received from a certifying entity stating that an individual has satisfac- torily met certain established  radiation  safety, testing, and experience criteria.

“Radiographic exposure device” means any x-ray machine used for purposes of making an industrial radiographic expo- sure or a device that contains a sealed source, and the sealed source or its shielding may be moved or otherwise changed from a shielded to an unshielded position for purposes of mak- ing an industrial radiographic exposure.

“Radiographic operations” means all activities associated with the presence of radiation sources in a radiographic exposure device during use of the device or transport (except when the device is being transported by a common or contract carrier). This includes performing surveys to confirm the adequacy of boundaries, setting up equipment, and conducting any activity inside restricted area boundaries.

“S-tube” means a tube through which a radioactive source travels when the source is inside a radiographic exposure device.

“Source assembly” means an assembly that consists of a sealed source and a connector that attaches the source to a con- trol cable. The source assembly may also include a stop ball used to secure the source in the shielded position.

“Underwater radiography” means industrial radiography per- formed when a radiographic exposure device is beneath the surface of water.

Historical Note

Former Rule Section E.1; Former Section R12-1-501 repealed, new Section R12-1-501 adopted effective June 30, 1977 (Supp. 77-3). Former Section R12-1-501 repealed, new Section adopted effective April 2, 1990 (Supp. 90-2). Amended effective August 10, 1994 (Supp.

94-3). Amended by final rulemaking at 7 A.A.R. 2584,

effective June 8, 2001 (Supp. 01-2). Section repealed; new Section made by final rulemaking at 9 A.A.R. 1126, effective May 9, 2003 (Supp. 03-1). Amended by final

rulemaking at 10 A.A.R. 4458, effective December 4,

2004 (Supp. 04-4). Amended by final rulemaking at 12

A.A.R. 75, effective February 7, 2006 (Supp. 05-4).