180 NAC 19-002. DEFINITIONS

002. DEFINITIONS. The following definitions apply: 002.01 ANNUALLY. Annually is either: (A) At intervals not to exceed one year; or(B) Once per year, at about the same time each year, plus or minus one month. 002.02 CONSTRUCTION. The construction of any portion of a permanent irradiator structure on a site. Construction does not include engineering and design work, site purchase, site surveys or soil testing, site preparation, site evacuation, construction of warehouse or auxiliary structures, and other similar tasks. 002.03 DOUBLY ENCAPSULATED SEALED SOURCE. A sealed source where the radioactive material is sealed within a capsule and that capsule is sealed within another capsule. 002.04 IRRADIATOR. A facility that uses radioactive sealed sources for irradiation of objects or materials and where radiation dose rates exceeding 5 grays (500 rads) per hour exist at 1 meter from sealed radioactive sources in air or water, as applicable for the irradiator type. The term does not include irradiators where both the sealed source and area subject to irradiation are contained within a device and not accessible to personnel. 002.05 IRRADIATOR OPERATOR. An individual who has successfully completed the training and testing described in 180 NAC 19-018 and is authorized by the terms of the license to operate the irradiator without a supervisor present. 002.06 PANORAMIC DRY-SOURCE-STORAGE IRRADIATOR. An irradiator where irradiations occur in air in areas potentially accessible to personnel and where sources are stored in shields made of solid materials. The term includes beam-type dry-source-storage irradiators where only a narrow beam of radiation is produced for performing irradiations. 002.07 PANORAMIC IRRADIATOR. An irradiator where the irradiations are done in air in areas potentially accessible to personnel. The term includes beam-type irradiators. 002.08 PANORAMIC WET-SOURCE STORAGE IRRADIATOR. An irradiator where irradiations occur in air in areas potentially accessible to personnel and where sources are stored under water in a storage pool. 002.09 POOL IRRADIATOR. Any irradiator where sources are stored or used in a pool of water including panoramic wet-source-storage irradiators and underwater irradiators. 002.10 PRODUCT CONVEYOR SYSTEM. A system for moving the product to be irradiated to, from, and within the area where irradiation takes place. 002.11 RADIATION ROOM. A shielded room where irradiations take place. Underwater irradiators do not have radiation rooms. 002.12 RADIATION SAFETY OFFICER. An individual with responsibility for the overall radiation safety program at the facility. 002.13 SEALED SOURCE. Any radioactive material used as a source of radiation and encased in a capsule designed to prevent leakage or escape of radioactive material. 002.14 SEISMIC AREA. Any area where the probability of a horizontal acceleration in rock of more than 0.3 times the acceleration of gravity in 250 years is greater than 10%, as designated by the U.S. Geological Survey. 002.15 UNDERWATER IRRADIATOR. An irradiator where the sources always remain shielded under water and humans do not have access to the sealed sources or the space subject to irradiation without entering the pool.