NMTCB Study Guide UPDATED ACTUAL Questions and CORRECT Answers

NMTCB Study Guide UPDATED ACTUAL Questions and CORRECT Answers

NRC
3 major federal agencies that control use of radioactive
DOT
materials in NM
FDA
At contact no more than 0.5 mR/hr
DOT I (white)
At 3ft no detected radioactivity
Contact = no more than 50 mR/hr
DOT II (yellow)
3ft = no more than 1 mR/hr
Contact = no more than 200 mR/hr
DOT III (yellow)
3ft = no more than 10 mR/hr
Total dose calculation Total dose = (dose rate)(time)
Inverse square law (Intensity1 x Distance1)^2 = (I2)(D2)^2
Occupational exposure: Whole-body 50 mSv or 5 rem /year
Occupational exposure: Lens of eye 150 mSv or 15 rem /year
Occupational exposure: Any organ or tissue 500 mSv or 50 rem /year
Occupational exposure: Skin or any extremity 500 mSv or 50 rem /year
Exposure for general public 1 mSv or 0.1 rem /year
Exposure for embryo/fetus of occupationally exposed
5 mSv or 0.5 rem for entire pregnancy
worker
Any area w/RA materials
Entrances to lab and department
Caution: radioactive materials Potential presence of radiation sources/contamination
No eating or drinking in area
No smoking or applying cosmetics in area
Areas you could receive more than 0.05 mSv (5 mrem) in
Caution: radiation area 1 hour at 30 cm from source
Commonly seen at NM lab entrances