180 NAC 19-011. RADIATION MONITORS

011. RADIATION MONITORS. 011.01 PRODUCT EXIT. Irradiators with automatic product conveyor systems must have a radiation monitor with an audible alarm located to detect loose radioactive sources carried toward the product exit. If the monitor detects a source, an alarm must sound and product conveyors must stop automatically. The alarm must be capable of alerting an individual in the facility who is prepared to summon assistance. Underwater irradiators where the product moves within an enclosed stationary tube are exempt from the requirements of 180 NAC 19-011.01. 011.02 POOL. Underwater irradiators not in a shielded radiation room must have a radiation monitor over the pool to detect abnormal radiation levels. The monitor must have an audible alarm and a visible indicator at entrances to the personnel access barrier around the pool. The audible alarm may have a manual shut-off. The alarm must be capable of alerting an individual who is prepared to respond promptly.