1. An introduction for the non-user
Radioactivity
An introduction for the non-user

2. Overview of Radioactive Decay
Nucleon emission
Alpha decay: 238U to 234Th
Beta decay
e- emission: 14C to 14N
Nuclear Transition
gamma ray: 125I* to 125I

3. Common Radioactive Isotopes
Radioactive material are used for a variety of applications in chemistry.
Most common radioisotopes used in chemical biology
3H: Organic molecules
14C: Organic molecules
35S: Proteins
32P/33P: Nucleic acids
125I: Protein modification
18F: FDG

4. Radioactive Materials and You
What you should do to minimize exposure
Understand universal signs for radioactivity
Radioactivity is detected using survey meters
or wipe testing/scintillation counting
Avoid direct contact with radioactive materials
If a spill occurs, alert DEHS