Radiation safety: personal monitoring: practice question

A Radiology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

Try it

Radiology · Radiation safety: personal monitoring

Sample item

Which device is commonly worn by radiation workers in India for routine monthly personal dose monitoring?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

D. Thermoluminescent dosimeter (TLD) badge

TLD badges contain lithium fluoride crystals that store energy from radiation and release it as light when heated, allowing dose estimation. Film badges and OSL dosimeters serve the same purpose. Survey meters measure area dose rates, not individual cumulative dose.

Option by option

  • A. Ionisation chamber survey meter

    Ionisation chambers are survey instruments used for area monitoring.

  • B. Geiger-Muller counter

    A Geiger-Muller counter is a survey instrument.

  • C. Pocket calculator dosimeter with no readout

    A calculator device is not a dosimeter.

  • D. Thermoluminescent dosimeter (TLD) badge (correct)

    Correct. TLD badges record cumulative personal dose.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More Radiology questions

Questions about this Radiology question

What is the answer to this Radiology question?

The best answer is D, Thermoluminescent dosimeter (TLD) badge. TLD badges contain lithium fluoride crystals that store energy from radiation and release it as light when heated, allowing dose estimation.

Why is "Ionisation chamber survey meter" not the answer?

Ionisation chambers are survey instruments used for area monitoring.

Why is "Geiger-Muller counter" not the answer?

A Geiger-Muller counter is a survey instrument.

Why is "Pocket calculator dosimeter with no readout" not the answer?

A calculator device is not a dosimeter.

What concept does this question test?

It tests Radiation safety: personal monitoring in Radiology. Film badges and OSL dosimeters serve the same purpose. Survey meters measure area dose rates, not individual cumulative dose.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Radiation safety: personal monitoring?

Learn signs with the image, and the disease they point to. Then use the flashcards and the other Radiology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.