INVERSE SQUARE LAW

#### Physics

INVERSE SQUARE LAW

1. The exposure rate from a source of radiation decreases with increasing distance from the source.

2. $X_{2}=X_{1}(d_{1}^{2}/d_{2}^{2})$ where X 1 is the original point source at d 1 , X 2 is the new exposure rate at d 2

##### 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