Presentation Transcript
Occupational Exposure Limits :Occupational Exposure Limits
Exposure :Exposure Occupational radiation dose limits have changed as a result of recommendations from many scientific committees. After careful consideration and deliberation, these recommendations become law
Legal Classifications :Legal Classifications Occupationally exposed:
Radiologists
X-ray Technologists
Nuclear Medicine Technologists
Radiation Therapists
Oncology Ward Nurses
Research Technicians General Public:
Hospital Visitors
Security Maintenance
Environmental Services
Non-occupationally exposed nursing staff
Patient Escort
Annual Dose Limits :Annual Dose Limits Occupationally Exposed
whole body 5rem
(5000mrem or 50mSv*)
lens of the eye 15rem (15,000mrem or150mSv)
Hand 50rem
(50,000mrem or 500mSv) forearms 50rem
(50,000mrem or 500mSv
gonads 50rem
(50,000mrem or 500mSv)
Annual Dose Limits :Annual Dose Limits General Public:
Annual dose limit -0.1rem (100mrem or 1mSv)
Annual dose limit-0.5rem (500mrem or 5mSv)
Dose to Embryo-Fetus
0.5rem (500mrem or 5mSv)
SI Units :SI Units CGS Unit SI Unit
Exposure Roentgen (R) Coulombs/kg (c/kg)
Absorbed Dose rad Gray (Gy)
Dose Equivalent rem Sievert (Sv)
1 Gy = 100 rads
1 Sv = 100 rem
Methods to Reduce Radiation Exposure :Methods to Reduce Radiation Exposure Reduce your time spent near radiation sources
Increase distance between you and the radiation source
Use appropriate shielding when available and when practical
Slide 10:DISTANCE