Radiation Safety Practice Exam

What is the total activity of radium-226 in the indicator with NSN 6680-00-933-5550?

1. 1.83E 4

2. 1.83E 5

3. 1.83E 6

4. 1.83E 7

The correct answer is: 1.83E 5

To find the correct total activity of radium-226 in the indicator with NSN 6680-00-933-5550, one must understand the specific context for this material. Radium-226 is a radioactive isotope that undergoes decay and emits radiation, and the total activity is typically measured in units of curies or becquerels. The specific value of 1.83E5 indicates an activity of 183,000 disintegrations per second, which is a reasonable estimate for a certain quantity of radium-226 associated with a device or instrument. This might reflect regulatory standards, historical usage, or a standardized amount used for calibration or measurement purposes. It is crucial to refer to relevant documentation that defines standards for radium-226 use in indicators or equipment. The uncertainty and risk associated with handling radium-226 necessitate precise measurements and careful adherence to safety practices, which likely influence how these totals are calculated and presented. Understanding these types of radioactive measurements is essential for radiation safety, ensuring that personnel are aware of exposure limits and the handling protocols for materials that contain isotopes like radium-226.