What type of radiological survey is conducted to get accurate intensities and extent of contamination for specific area or the entire ship?

• A. Detailed Survey
• B. Quick Scan
• C. Zone Map
• D. Whole Ship Analysis

Answer: (A)

A detailed survey is the type of radiological survey used to obtain accurate intensities and the extent of contamination for a specific area or the entire ship. This approach uses calibrated instruments to take measurements on a grid, often including surface contamination checks (wipe tests) and radiation level readings. The data are recorded and mapped to show exact contamination levels and boundaries, which is essential for targeting decontamination and ensuring safety criteria are met.

A quick scan can spot potential hotspots but doesn’t provide the precise quantitative data across the area. Zone maps are the visual outputs produced after surveying, not the measurement process itself. Whole ship analysis refers to a broader assessment, not the focused, instrument-driven measurements needed to define contamination spread.