Ionising Radiation
Quantum and Nuclear

Infra-red transmitter

Teaching Guidance for 14-16 PRACTICAL PHYISCS

To make the infrared transmitter you will need:

  • 75W resistor (from Rapid metal film resistor MR25 kit. 13-0270)
  • infrared-emitting diode SFH487
  • 3 mm LED clip (JPR 850-090)
  • socket 4 mm red (JPR 705-205)
  • socket 4 mm black (JPR 705-206)
  • halved square section 'plastic down pipe' approx 9 cm long (DIY store)
  • connecting wire

Assemble as shown in the diagram:

© University of York Science Education Group

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General guidance on apparatus

Teaching and safety notes on a wide range of apparatus used in school/college-based...

For 14-16 16 Resources

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Misconceptions
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Many students are aware that radiation can cause cancer but few are aware of beneficial uses

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Many students are confused by the nature of radiation in general and some think it is artificial

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Students see ionising radiation (and possibly ‘radiation’ in general) as harmful to health

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Ionising Radiation
can exhibit Alpha Decay Beta Decay Gamma Decay
is used in analyses relating to Radioactive dating
involves Ionisation Unstable Nucleus Nuclide
can be analysed using the quantity Half-Life Decay Constant Activity
features in Medical Physics
Limit Less Campaign

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