Exam (elaborations)
Radiation Safety I and II Questions and Answers 2024
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Radiation Safety I and II
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Radiation Safety I and IIListing the steps you would take to clean up an isotope spill on a lab surface. - answer
Steps in Clean-up
1.Attend any injured person and ensure personal safety.
2.Assess the size of the spill.
3.Obtain necessary supplies.
4.Cover spill with absorbent.
5.Push spill towards center and wipe in an inward spiral.
6. Decontaminate area in sections.
7. Check for contamination (record).
8. Re-clean as necessary.
9. Inform Radiation Safety Officer of contamination
Naming two types of instruments we can use to monitor laboratories to determine if
levels of radiation are acceptable or not. - answer Geiger Counter and Scintillation
Counters
Explaining the purpose of devices used to monitor the exposure of personnel to
radioactivity. - answerThe dosimeter allows the quantitative detection of radiation with a
wavelength shorter than 350 nm (UV light, X-ray and radioactive radiation).
•It monitors the personal exposure dose of a person.
•A dosimeter ("film badge") should be worn whenever a person is working with x-ray
equipment, radioactive patients or radioactive materials.Depending upon the type of
work you do, your dosimeter may be changed monthly or quarterly.
•You should periodically check your dosimetry reports, so you can evaluate how well
you are doing in terms of minimizing your radiation exposure.
•Copies of these reports sent to the "badge contact" person in your work area and are
available for your inspection.
Type:Body dosimeter
•Depending on your situation, you will wear your body dosimeter at collar level, chest
level or waist level.
•You can determine the proper location by looking at the dosimeter cover.
•You should wear your dosimeter at the location of the white dot on the figure (at shirt-
pocket level in this example).
Ring dosimeter
•Ring dosimeters (used for measuring beta and gamma dose to the hand) should be
worn on the hand which is closest to the radiation source.
•Wear the ring so that the label is on the palmar(inside) surface of the finger, towardthe
radiation source and oppositefrom the side you would normally wear the "stone" of a
ring.
, Fetal dosimeter
•If a worker becomes pregnant, she may still be able to work safely around radiation
sources and radioactive material.
•Under certain circumstances, radiation exposure will be monitored using a fetal
dosimeter.
•This dosimeter is worn on the front of the abdomen at about waist level.
•If x-ray shielding apron is worn, the fetal dosimeter must be worn underthe apron.
Explaining and describe how personal monitoring badges work and stating the rules for
safe handling of these devices. - answerType:Body dosimeter
•Depending on your situation, you will wear your body dosimeter at collar level, chest
level or waist level.
•You can determine the proper location by looking at the dosimeter cover.
•You should wear your dosimeter at the location of the white dot on the figure (at shirt-
pocket level in this example).
Ring dosimeter
•Ring dosimeters (used for measuring beta and gamma dose to the hand) should be
worn on the hand which is closest to the radiation source.
•Wear the ring so that the label is on the palmar(inside) surface of the finger, towardthe
radiation source and oppositefrom the side you would normally wear the "stone" of a
ring.
Fetal dosimeter
•If a worker becomes pregnant, she may still be able to work safely around radiation
sources and radioactive material.
•Under certain circumstances, radiation exposure will be monitored using a fetal
dosimeter.
•This dosimeter is worn on the front of the abdomen at about waist level.
•If x-ray shielding apron is worn, the fetal dosimeter must be worn under the apron.
Amplitude - answeris the height of the wave.
Electromagnetic spectrum - answeris the range of all possible frequencies of
electromagnetic radiation.
The "electromagnetic spectrum" of an object is the characteristic distribution of
electromagnetic radiation emitted or absorbed by that particular object.The
electromagnetic spectrum extends from below frequencies used for modern radio to
gamma radiation at the short-wavelength end, covering wavelengths from thousands of
kilometers down to a fraction of the size of an atom.
Frequency - answeris the number of occurrences of a repeating event per unit time.
Infrared (IR) - answerHeat lamps for warming food.
•Therapuetic or cosmetic use.
•Burns can result from extended exposure.
Infrared radiation can be used to remotely determine the temperature of objects.
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