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OOGA_Digital X-ray Chapter 9 Radiation Detection and Measurement

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1. A pocket dosimeter will provide dose rate information.
True False
2. A survey meter will provide dose rate information.
True False
3. Dose rate instruments contain ionization chambers.
True False
4. Non-direct reading dosimeters are read by pointing the end of the dosimeter at a light source and peering into the opposite end.
True False
5. Film badges measure dose rate
True False
6. Film badges may have a lead or aluminum filter.
True False
7. A control badge may be worn by a visitor if no guest badge is available.
True False
8. If Bob leaves his film badge at home by mistake, with permission from management, he may wear Carl’s badge if Carl is not using the badge that shift.
True False
9. You are to fly to another state to perform radiography. It’s OK to let your film badge go through the airport X-ray scanner since the dose rate is minimal.
True False
10. Thermoluminescent dosimeters (TLD)'s are better than film badges because they are more accurate for low doses.
True False
11. Film badges are better than Thermoluminescent Dosimiter (TLD)s because they are impervious to water.
True False
12. Film badges work on the principle of phosphorous luminescence.
True False
13. A properly calibrated survey meter that shows a dose rate of 100 mR/hr may actually be measuring 88 mR/hr and still be within calibration.
True False
14. Survey meters are better than Geiger counters for measuring low dose rates.
True False
15. Geiger counters may deflect a needle or produce audible clicks as an indication of exposure.
True False