Radiation Protection and Safety 12/18/2015 1 Radiation Protection   Objectives and standards Benefits and risks   Occupational (onsite) vs. Non-occupational.

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Presentation transcript:

Radiation Protection and Safety 12/18/ Radiation Protection   Objectives and standards Benefits and risks   Occupational (onsite) vs. Non-occupational (offsite) Number of exposed people   ALARA principle

Radiation Protection and Safety 12/18/ Radiation Protection   National Council on Radiation Protection and Measurements (NCRP)   International Commission on Radiological Protection (ICRP)

Radiation Protection and Safety 12/18/ Radiation Protection   Equivalent Dose: H T,R = w R D T,R

Radiation Protection and Safety 12/18/ Radiation Protection   Effective Dose: E = Σ w T H T   Risk estimates   Dose constraints

Radiation Protection and Safety 12/18/ Radiation Protection   Intake limits   Transfer models

Radiation Protection and Safety 12/18/ Radiation Protection   Organ and tissue activity over time   Short term and long term doses

Radiation Protection and Safety 12/18/ Radiation Protection   Time, distance and shielding   Buildup factor (B) used for gamma rays: I = BI o e -μx

Radiation Protection and Safety 12/18/ Radiation Protection   Calculating the shielding thickness (x)   Narrow beam of gamma rays (B = 1)

Radiation Protection and Safety 12/18/ Radiation Protection   X ray machines   Lead lining   Controlled and uncontrolled areas   Dose/year

Radiation Protection and Safety 12/18/ Radiation Protection   Experimental data   Application of Q in shielding design

Radiation Protection and Safety 12/18/ Radiation Protection   Beta & Bremmstrahlung   Neutrons

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