Radiation Monitoring Devices Quiz

Which of the following personnel monitoring devices uses thermoluminescent material to measure radiation exposure?

• Film badge

• Pocket dosimeter

• Thermoluminescent dosimeter (TLD)

• Optically stimulated luminescence dosimeter (OSL)

The film badge should be worn on the body at which of the following locations for accurate dose measurement?

• On the ankle

• Inside the glove

• On the chest or collar, outside the lead apron

• On the back of the neck

Which one of the following is *not* an advantage of using TLDs over film badges?

• Reusability

• Immediate readout

• Greater sensitivity

• Resistance to environmental factors

What is the principal function of personnel monitoring devices in radiology?

• To improve image quality

• To diagnose radiation injuries

• To measure and record occupational radiation exposure

• To calibrate imaging equipment

What type of radiation does an OSL dosimeter primarily detect?

• Visible light

• Alpha radiation

• Ionizing radiation (X-rays, gamma rays)

• Microwave radiation

Pocket dosimeters are most useful for which of the following situations?

• Long-term exposure tracking

• Estimating patient radiation dose

• Immediate dose readout in high-radiation areas

• Permanent record storage

The crystalline material commonly used in TLDs is:

• Silver bromide

• Calcium fluoride

• Cesium iodide

• Lithium fluoride

Which personnel dosimeter has the highest accuracy and is least affected by heat and humidity?

• Film badge

• Pocket dosimeter

• TLD

• OSL dosimeter

According to radiation safety guidelines, what is the minimum dose limit per year for occupational exposure (whole body) in most countries?

• 5 mSv

• 10 mSv

• 20 mSv

• 50 mSv

When should a second dosimeter be worn under the lead apron?

• During ultrasound scans

• During interventional fluoroscopy procedures

• During MRI scans

• When working with non-ionizing radiation