Extra TopicsStudy Notes

GM tube — ionisation detection

Part of Radiation Detection · GCSE GCSE Physics revision

This study notes covers GM tube — ionisation detection within Radiation Detection for GCSE Physics. Revise Radiation Detection in Extra Topics for GCSE Physics with 13 exam-style questions and 11 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 2 of 13 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 2 of 13

Practice

13 questions

Recall

11 flashcards

GCSE Physics revision: Geiger-Müller tube cross-section showing ionisation detection mechanism
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Figure: GM tube — ionisation detection

Keep building this topic

Read this section alongside the surrounding pages in Radiation Detection. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Radiation Detection

What instrument is commonly used in school laboratories to detect ionising radiation?

  • A. Thermometer
  • B. Geiger-Muller (GM) tube
  • C. Voltmeter
  • D. Oscilloscope
1 markfoundation

Explain how a Geiger-Muller (GM) tube detects ionising radiation.

2 marksstandard

Quick Recall Flashcards

What does a GM tube measure?
Count rate - the number of radiation particles detected per unit time (usually counts per second or minute)
What is count rate?
The number of radioactive decays (or radiation particles) detected per second or minute. Units: counts/second or counts/minute

13 questions on Radiation Detection — practise free

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