What is the legal limit for wipe tests in terms of disintegrations per minute per area?

The correct answer is based on the standards set by regulatory bodies regarding contamination levels in controlled environments. The legal limit for wipe tests in radiation safety is established to ensure that areas where radioactive materials are used or stored are not excessively contaminated. Specifically, the number 6,600 disintegrations per minute over an area of 300 cm² represents an acceptable threshold for contamination that does not pose a significant health risk to personnel or the public.

In practice, wipe tests are conducted by taking samples from surfaces and measuring the levels of radioactive contaminants. The limit corresponds to a level that indicates proper safety protocols are being followed and that adequate clean-up procedures are in place to maintain a safe working environment. This standard helps to balance safety and operational efficiency in facilities that handle radioactive materials.

Understanding these limits is crucial for professionals in the field, as it reflects adherence to safety regulations and protocols designed to protect both workers and the surrounding environment from radiological hazards.