Radiation Safety Flashcards
topic 1
Alpha
He^2+, mass but short travel path
Beta
e-/ e+; tiny mass moderate travel path
Gamma
packet of energy, no mass extremely long travel path
Neutron
n; moderate mass long travel path
Dose Equivalent
dose absorbed with quality factor and location (Rem, Sievert) ; Alpha = 20, Beta and Gamma = 1, Neutron = 10
Effective Dose Equivalent
dose equivalent with summed factor for organs/ tissue
Shallow Dose Equivalent
dose to skin at 0.007 cm tissue depth
Deep Dose Equivalent
Dose to skin at 1 cm
Lens Dose Equivalent
Dose to the eye lens; 0.3 cm tissue depth
Committed Dose Equivalent
Dose equivalent for radioactive material ingested for 50 years after intake
Committed Effected Dose Equivalent
committed dose equivalent with weighting factors
Total Effective Dose Equivalent
sum of effective dose equivalent external and committed effective dose equivalent internal
prevent exposure
time, distance, shielding (paper, metal, lead, water)
Half Value layer
the thickness required to reduce radiation by a factor of 2
Radiation Area
greater than 5 mrem/hr at 30 cm
