Radiation Hazard Symbol - Universal Warning Sign for Radioactive Materials #115877 (License: Personal Use)

This image displays the standard trefoil radiation symbol, consisting of three black blades arranged at 120-degree angles around a central circle on a yellow field. Designed in 1946 at the University of California, Berkeley, it conveys immediate visual alertness for radioactive materials, equipment, or contaminated areas. The high-contrast color scheme ensures visibility and compliance with international safety standards (ISO 361, IAEA).

Used on containers, doors, equipment, and signage in nuclear facilities, hospitals (radiology/oncology), labs, and transport vehicles. Matches user intent for safety education, regulatory compliance, emergency response training, or technical documentation.