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Please confirm that the title of the tutorial
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Personal information
Name:
Street Address:
Street Address:
City, State, Zip Code:
VOICE #:
Special
Needs:
E-mail Address:
Work telephone #:
Work FAX # :
TEST: Personnel Monitoring Devices
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1. The purpose of measuring occupational exposure is to: Identify undesirable practices and unexpected sources of high exposure Promptly apply controls to limit exposure Provide information regarding exposure of the individual, permitting a comparison with long-term limits
All
of the above |
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2. Personnel monitoring for external exposure shall be performed on all occupationally exposed individuals who may receive >___% of the applicable MPD during the normal course of their duties or through accidental exposure5 10 15 20 |
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3. Which of the following occasional visitors must be badged? Messengers Servicemen Deliverymen All of the above None
of the above |
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4. Long term visitors to controlled areas should be regarded as occupationally exposed persons if it is likely that they will receive a dose equivalent exceeding ______ mRem per year.: 5 10 50 100
500 |
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5.
The
ideal personnel monitoring device must accurately measure the biological dose
in Rems received by parts of the body considered to be most vital from the
standpoint of chronic low level exposure, i.e., Bone marrow and gonads Skin and bones Spleen and liver Heart and lungs
Breast
and thyroid |
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6. Measurement
of internal radiation dose must be independent of Type of radiation producing the internal dose Energy of radiation producing the dose Both answers are correct Neither answers are correct |
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7. Personnel monitoring records must be preserved: For 1 year For 3 years
For
5 years
Until the US NRC
authorizes disposition |
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8. Reportable exposure records include... Those dealing with whole body measurements Those dealing with finger measurements Results of any measurements, analyses, or calculations of radioactive material deposited or retained in the body All of the Above
None
of the Above |
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9. Exposure records MUST BE furnished to which ONE of the following: Any currently employed occupational worker who requests it- on a quarterly basis Any formerly employed occupational worker who requests it- within 24 hours The individual and the NRC/State in the case of an overexposure- within 30 days A colleague requesting it on behalf of a former
employee |
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10. Personnel monitoring devices: Are designed to measure the accumulated external exposure and internal dose that a person receives over a time interval Are integrating devices Provide an instantaneous readout of the dose rate at a specific moment in time A and B only All of the above |
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11. Which
of the following is NOT a consideration in the use of film badges and other
personnel monitoring devices? Size and weight Cost Color
Reliability |
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12. Which of the following statements regarding film badges is/are FALSE? Film badges are excellent for monitoring extremity exposures. Film badges are excellent for monitoring whole body exposures.
Both
A and B |
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13. Which ONE of the following statements regarding film badges is false? They are the most popular type of monitoring device They contain a lithium fluoride chip functioning as a thermoluminescent dosimeter
They contain photographic emulsion mounted in plastic
and then over-wrapped in light-tight paper They are able to distinguish the type of radiation to which wearer is exposed |
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14. Film badges can distinguish among different energy photons because... They contain internal circuitry sensitive to different photon energies They contain small metallic filters of different densities, enabling them to distinguish among higher energy photons
They contain a lithium fluoride chip functioning as a
thermoluminescent dosimeter |
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15. The companies that determine our exposure from film badges... Read the values off a “glow curve” Measure the weight of the film badge before and after use to determine amount of silver bromide that has been converted to elemental silver by ionizing radiation
None
of the above |
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16. Which of the following statements regarding film badges is FALSE? They provide a permanent record of individual exposure Relatively inexpensive
Require no technical knowledge of user It takes several weeks to obtain results of film badge monitoring |
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17. TLD ring badges are very important for individuals involved in eluting generators, preparing kits, and injecting patients. Which ONE of the following statements is TRUE? Thermoluminescent dosimeters typically contain the phosphor lanthanum fluoride TLDs trap protons excited by exposure to ionizing radiation
TLDs are used one time and then discarded TLDs are unreliable above about 1000 mRem |
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18. Which of the following statements regarding pocket dosimeters is TRUE? Pocket Dosimeters are useful in those situations in which large exposures are expected on an infrequent schedule. A “Glow Curve” is required to obtain a reading of the absorbed dose
A pocket dosimeter is considered an integrating
device
None
of the above |
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19. Which of the following statements regarding pocket dosimeters is TRUE? Compared to a TLD, a Pocket Dosimeters is a fragile device Pocket dosimeters can give both instantaneous and integrated reading
A pocket dosimeter is more expensive than a film
badge
None
of the above |
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20. To
measure the absorbed radiation dose during a 4-hr visit to a radiopharmacy,
which of the following devices would be the most appropriate one to use? GM Counter Film badge
TLD |
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