In addition to the hazard of direct exposure to the electron beam you must be aware of the potential for induced radioactivity in objects near the path of the beam. The GRWP specifies the requirements for hall entry after beam shutdown. Typically, a radiation susrvey is done to evaluate conditions in the hall. If radiation levels exceed certain thresholds, then specific signs, postings, and barriers will be installed by the RCG or ARMs. In addition, verbal instructions may be given to personnel in the area regarding access to various locations. If it is necessary to remove or modify beam line or target chamber components, or to perform any work in a posted Radiation Area, you must consult the RCG before beginning work. In many cases a specific RWP (SRWP) is required for work. SRWPs for many activities will be available in the Counting House for review. Any item which was in the hall during beam delivery and needs to be removed from the hall, must be surveyed by the RCG prior to removal. All hardware, materials, or components which are waste items should be placed in the large blue drums available for potentially activated material. The RCG will survey these items before disposal.
If it becomes necessary to perform work on any piece of equipment in the hall that may have received a significant dose of direct radiation you must have it surveyed by a radiation monitor before you work can begin. This mean's that all work on beamline or target chamber equipment will involve a radiation survey.
If it is necessary to remove any item from the hall after or during a running period it should be surveyed first. All components must be surveyed and released by a radiation officer before they can be removed from the hall.