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Uses and Dangers of Radioactivity Key Question –How can we make use of radioactivity and what problems are there?

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Presentation on theme: "Uses and Dangers of Radioactivity Key Question –How can we make use of radioactivity and what problems are there?"— Presentation transcript:

1 Uses and Dangers of Radioactivity Key Question –How can we make use of radioactivity and what problems are there?

2 Radioactive tracer in medicine to find brain tumours

3 BREAK IN PIPE UNDERGROUND γ SOURCE USED AS RADIATION WILL NOT BE ABSORBED BY EARTH Industrial Radioactive tracer: finding break in underground pipe RADIATION/FAULT IN PIPE DETECTED

4 STERILIZATION OF SURGICAL EQUIPMENT AND FRESH FOOD

5 controlRadiation detector Radiation source β Rollers to control thickness of paper CONTROL THICKNESS OF PAPER ( β SOURCE) 200 COUNTS/SECOND CORRECT THICKNESS PAPER TO THICK PAPER TOO THICK 150 COUNTS/SECOND PAPER TO THIN 250 COUNTS/SECOND

6 control Radiation detector Radiation source γ Rollers to control thickness of paper CONTROL THICKNESS OF ALUMINIUM/STEEL ( γ SOURCE) 200 COUNTS/SECOND CORRECT THICKNESS PAPER TO THICK TOO THICK 150 COUNTS/SECOND TO THIN 250 COUNTS/SECOND

7 Your task Produce a leaflet outlining the uses that have been described above. You may use the ‘Physics for you’ book to help you Include as much scientific knowledge as possible

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