NMTCB Exam Review with Accurate
Solutions
NRC - ANS-Nuclear Regulatory Commission
DOT - ANS-Department of Transportation
Type A Packaging - ANS-Adequate for normal transport
Type B Packaging - ANS-Used for large quantities of radioactivity
What type of packaging is used for routine transport of radio pharmaceuticals? - ANS-
Type A
Categories for labeling Type A packages - ANS-Measured dose rate, package surface,
1 m from the surface
TI - ANS-Transport Index
Transport index - ANS-Dose rate measured at 1 m from the surface
DOT 1 (white) - ANS--No more than 0.5 mR/h at surface
-NDR at 1 m
DOT 2 (yellow) - ANS--No more than 50 mR/h at surface
-No more than 1 mR/h at 1 m
DOT 3 (yellow) - ANS--No more than 200 mR/h at surface
-No more than 10 mR/h at 1 m
FDA - ANS-Food and Drug Administration
IND - ANS-Investigational New Drug
What does a radio pharmaceutical need to be distribute for sale? - ANS-NDA
NDA - ANS-New Drug Authorization
A drug under investigation for future approval - ANS-IND
3 factors in reducing external radiation exposure - ANS-Time, distance, shielding
, Total dose= - ANS-(Dose rate)(Time)
Inverse square law= - ANS-(I1)(D1)^2=(I2)(D2)^2
Shielding for alpha particles - ANS-Sheet of paper
Shielding for beta particles - ANS-Plastic or lucite
Why should lead shielding not be used for beta emitters? - ANS-Creates
bremmstrahlung
Bremsstrahlung - ANS-Radiation resulting from deceleration of beta particles as they
approach the nuclei of the lead atoms-released as x rays
HVL - ANS-Half value layer
The amount of bremsstrahlung _____________ with the density of the material that the
beta particles pass - ANS-Increases
Half value layer - ANS-The thickness of a material required to reduce the radiation
intensity to half its original value
Energy of positron emitters - ANS-511 keV
When are film badges affective? - ANS-When measuring radiation exposures of 10
mrem to several hundred rem
What is a film badge made of? - ANS-3 or 4 filters of different material (lead, copper,
aluminum, plastic)
TLD - ANS-Thermolumimescent dosimeters
Why would a TLD be better than a film badge? - ANS-It is not affected by environmental
conditions
Example of a TLD - ANS-Ring badge
How does an optically stimulated luminescence dosimeter work? - ANS-Uses aluminum
oxide to detect radiation
What is more sensitive, a film badge or OSL? - ANS-OSL
TEDE - ANS-Total effective dose equivalent
DDE - ANS-Deep dose equivalent
Solutions
NRC - ANS-Nuclear Regulatory Commission
DOT - ANS-Department of Transportation
Type A Packaging - ANS-Adequate for normal transport
Type B Packaging - ANS-Used for large quantities of radioactivity
What type of packaging is used for routine transport of radio pharmaceuticals? - ANS-
Type A
Categories for labeling Type A packages - ANS-Measured dose rate, package surface,
1 m from the surface
TI - ANS-Transport Index
Transport index - ANS-Dose rate measured at 1 m from the surface
DOT 1 (white) - ANS--No more than 0.5 mR/h at surface
-NDR at 1 m
DOT 2 (yellow) - ANS--No more than 50 mR/h at surface
-No more than 1 mR/h at 1 m
DOT 3 (yellow) - ANS--No more than 200 mR/h at surface
-No more than 10 mR/h at 1 m
FDA - ANS-Food and Drug Administration
IND - ANS-Investigational New Drug
What does a radio pharmaceutical need to be distribute for sale? - ANS-NDA
NDA - ANS-New Drug Authorization
A drug under investigation for future approval - ANS-IND
3 factors in reducing external radiation exposure - ANS-Time, distance, shielding
, Total dose= - ANS-(Dose rate)(Time)
Inverse square law= - ANS-(I1)(D1)^2=(I2)(D2)^2
Shielding for alpha particles - ANS-Sheet of paper
Shielding for beta particles - ANS-Plastic or lucite
Why should lead shielding not be used for beta emitters? - ANS-Creates
bremmstrahlung
Bremsstrahlung - ANS-Radiation resulting from deceleration of beta particles as they
approach the nuclei of the lead atoms-released as x rays
HVL - ANS-Half value layer
The amount of bremsstrahlung _____________ with the density of the material that the
beta particles pass - ANS-Increases
Half value layer - ANS-The thickness of a material required to reduce the radiation
intensity to half its original value
Energy of positron emitters - ANS-511 keV
When are film badges affective? - ANS-When measuring radiation exposures of 10
mrem to several hundred rem
What is a film badge made of? - ANS-3 or 4 filters of different material (lead, copper,
aluminum, plastic)
TLD - ANS-Thermolumimescent dosimeters
Why would a TLD be better than a film badge? - ANS-It is not affected by environmental
conditions
Example of a TLD - ANS-Ring badge
How does an optically stimulated luminescence dosimeter work? - ANS-Uses aluminum
oxide to detect radiation
What is more sensitive, a film badge or OSL? - ANS-OSL
TEDE - ANS-Total effective dose equivalent
DDE - ANS-Deep dose equivalent
