rssc radiation questions with
verified solutions
match the following terms on the left with the appropriate
selection on the right. - answer OSL = a type of dosimeter that
stores absorbed energy until released by laser light
HVL = the thickness of shielding material required to reduce the
intensity of radiation at a point by half
DAC = the concentration of a radionuclide in air required to yield
an ALI
ALARA = a policy to keep radiation exposure as low as reasonably
achievable
ALI = the quantity of a radionuclide which, when present
continuously in the body, will deliver a dose not exceeding the
maximum permissible dose.
TLD = a type of dosimeter that stores absorbed energy until
released by heat
you are working in a radiation field with a dose rate of 500
mrem/hr. how long can you stay in that field before your dose
reaches 300 mrem? - answer 36 minutes
a box has a "radioactive II" sticker on it. what do you know about
it? - answer both a and b
a lab worker accidently inhales a radioactive aerosol. it is possible
for the radionuclide to exit the body in which way(s)? (see the
, diagram on page 3-17 of the study guide.) - answer all of the
above
the half value layer of lead for Cs-137 is 0.536 cm. what thickness
of lead do you need to reduce the exposure rate from 64 mR/hr to
2 mR/hr? - answer 2.68 cm
the maximum permissible ALI for internal emitters allows you to
receive a CEDE of 5 rem per year to the whole body. however, you
also work with external sources of radiation and receive 2 rem per
year from these sources. which of the following is true? - answer
federal and state regulations state that you cannot receive more
than 5 rem from all sources combined. you will have to limit your
exposure to one or both sources to stay within 5 rem total.
am i required to participate in the bioassay program if i work with
tritium or iodone? - answer it depends
all of the following are advantages of OSL dosimeters except -
answer they can be read on-site
a sign posted on a door says "radiation area." this means - answer
the level of radiation exceeds 5 mR/hr or 100 mR in 40 hours.
a radionuclide has a radiological half-life of 30 days and a
biological half-life of 20 days. what is the effective half-life? -
answer 12 days
verified solutions
match the following terms on the left with the appropriate
selection on the right. - answer OSL = a type of dosimeter that
stores absorbed energy until released by laser light
HVL = the thickness of shielding material required to reduce the
intensity of radiation at a point by half
DAC = the concentration of a radionuclide in air required to yield
an ALI
ALARA = a policy to keep radiation exposure as low as reasonably
achievable
ALI = the quantity of a radionuclide which, when present
continuously in the body, will deliver a dose not exceeding the
maximum permissible dose.
TLD = a type of dosimeter that stores absorbed energy until
released by heat
you are working in a radiation field with a dose rate of 500
mrem/hr. how long can you stay in that field before your dose
reaches 300 mrem? - answer 36 minutes
a box has a "radioactive II" sticker on it. what do you know about
it? - answer both a and b
a lab worker accidently inhales a radioactive aerosol. it is possible
for the radionuclide to exit the body in which way(s)? (see the
, diagram on page 3-17 of the study guide.) - answer all of the
above
the half value layer of lead for Cs-137 is 0.536 cm. what thickness
of lead do you need to reduce the exposure rate from 64 mR/hr to
2 mR/hr? - answer 2.68 cm
the maximum permissible ALI for internal emitters allows you to
receive a CEDE of 5 rem per year to the whole body. however, you
also work with external sources of radiation and receive 2 rem per
year from these sources. which of the following is true? - answer
federal and state regulations state that you cannot receive more
than 5 rem from all sources combined. you will have to limit your
exposure to one or both sources to stay within 5 rem total.
am i required to participate in the bioassay program if i work with
tritium or iodone? - answer it depends
all of the following are advantages of OSL dosimeters except -
answer they can be read on-site
a sign posted on a door says "radiation area." this means - answer
the level of radiation exceeds 5 mR/hr or 100 mR in 40 hours.
a radionuclide has a radiological half-life of 30 days and a
biological half-life of 20 days. what is the effective half-life? -
answer 12 days
