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UNSTABLE NUCLEIDS

Physics

UNSTABLE NUCLEIDS

Unstable nucleids have an excess of energy and emit this as radiation to become a stable, low-energy daughter product. Nuclei are unstable if:

1. Very large or small number of nucleons (max. 83 protons, A > 209 are intrinsically unstable).

2. Number of neutrons very different from number of protons.

3. Odd number of protons/neutrons.


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REFERENCES

1. Bushberg, J. T. (2012). The essential physics of medical imaging. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins. Find it at Amazon
2. Heggie, J. C., Liddell, N. A., & Maher, K. P. (1997). Applied imaging technology. Melbourne: St. Vincents Hospital.

Ⓒ A. Manickam 2018

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