What method measures radiation from wiping cloths or paper over a surface?

Study for the NANTeL Radiation Worker Training Test. Learn with multiple choice questions covering essential safety procedures. Equip yourself with answers, hints, and explanations. Prepare thoroughly for your certification exam!

Multiple Choice

What method measures radiation from wiping cloths or paper over a surface?

Explanation:
Wipe sampling to assess removable surface contamination uses a smear method. By wiping a defined area with a cloth or paper, you collect any material that can be easily removed from the surface. The collected wipe is then counted with a radiation detector to quantify the activity, giving a measure like dpm per 100 cm^2. This approach directly evaluates how much contamination can be transferred or removed, which is exactly what wiping cloths or paper over a surface accomplishes. The other techniques measure contamination differently—for example, direct surface checks without removing material, or counting particles in a way that doesn’t involve a wipe—so they don’t align with the purpose of wipe-based sampling.

Wipe sampling to assess removable surface contamination uses a smear method. By wiping a defined area with a cloth or paper, you collect any material that can be easily removed from the surface. The collected wipe is then counted with a radiation detector to quantify the activity, giving a measure like dpm per 100 cm^2. This approach directly evaluates how much contamination can be transferred or removed, which is exactly what wiping cloths or paper over a surface accomplishes. The other techniques measure contamination differently—for example, direct surface checks without removing material, or counting particles in a way that doesn’t involve a wipe—so they don’t align with the purpose of wipe-based sampling.

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