Which factor directly increases a worker's radiation dose?

• A. Time spent working increases dose
• B. Closer to the source increases dose
• C. Shielding reduces dose
• D. Dosimeter type

Answer: (A)

Radiation dose accumulated by a worker grows directly with the amount of time spent exposed. The longer you remain near the source, the more energy is deposited in the body, so the total dose increases in proportion to exposure time. Shielding and distance influence how much dose you receive per unit time, and the dosimeter only measures or records the dose, not how much you’re exposed. So, reducing the time you spend near the source is the most direct way to limit the dose.