Question 1

What is a becquerel?

Accepted Answer

SI unit of radioactivity: 1 Bq = 1 decay per second. Named after Henri Becquerel who discovered radioactivity.

Question 2

How do you convert becquerels to curies?

Accepted Answer

Divide Bq by 3.7×10¹⁰. Example: 37 GBq = 1 Ci. Curie is older unit based on radium decay rate.

Question 3

What's the difference between exposure and dose?

Accepted Answer

Exposure (roentgen) measures radiation in air. Absorbed dose (gray/rad) measures energy deposited. Equivalent dose (sievert/rem) accounts for biological effect.

Question 4

What are safe radiation levels?

Accepted Answer

Background radiation: ~3 mSv/year. Occupational limit: 50 mSv/year. Single dose effects start around 250 mSv. Always follow ALARA principle.

Bq to Ci Converter

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