ERHS 551C - Radiation Biology Principles for Medicine: Principles of Radiation Protection

  • 1 credit

Radiation risk assessment and protection; risk versus benefit associated with environmental and medical exposures. Credit not allowed for both ERHS 551C and ERHS 550 (Principles of Radiation Biology).

This course requires the use of electronic proctoring through ProctorU, please see for detailed instructions.  For students requiring accommodations, please contact Resources for Disabled Students (RDS); for consideration of exceptions outside the scope of RDS, please contact the University Testing Center.


ERHS 551B (Radiation Biology Principles for Medicine: Principles of Radiation Oncology).

Important Information

This course is also available as a noncredit option. See the EDLL 2009 course page if you want the content, but don't need the college credits.

Textbooks and Materials

Textbooks and materials can be purchased at the CSU Bookstore unless otherwise indicated.


  • Radiobiology for the Radiologist, 7th Ed. (2012)
    Hall, Eric J. and Giaccia, Amato J.


  • Why We Need Nuclear Power: The Environmental Case* (2014)
    Fox, Michael H.

*optional, but recommended


Susan Bailey

(970) 491-2944 |

Dr. Bailey is a professor and a cancer molecular biologist in the Department of Environmental and Radiological Health Sciences (ERHS). Her current research program, funded primarily by NASA, focuses on the role of chromosomes and telomeres (the ends of chromosomes) in cancer and other human disease states (e.g., cardiovascular disease). Studies focus on interactions between telomeres and DNA repair, with the ultimate goal of shedding light on a key issue in these increasingly overlapping fields—how cells distinguish between natural chromosomal termini and broken DNA ends. Such studies also impact investigation of telomere length maintenance by telomerase as an informative biomarker of biological aging, and therefore disease risk, which is influenced by a variety of lifestyle factors, including stress (e.g., nutritional, psychological, physical) and environmental exposures (e.g., UV and ionizing radiations).