For a cardiac pacemaker, discuss whether the radioactive source should be an alpha, b Watch

waqar_lfc
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For a cardiac pacemaker, discuss whether the radioactive source should be an alpha, beta or gamma emitter?

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Cora Lindsay
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(Original post by waqar_lfc)
For a cardiac pacemaker, discuss whether the radioactive source should be an alpha, beta or gamma emitter?

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Think about the properties you'd want from a pacemaker source, and about the properties of the different types of ionising radiation
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Lyndon1504
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(Original post by waqar_lfc)
For a cardiac pacemaker, discuss whether the radioactive source should be an alpha, beta or gamma emitter?

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Did you work this one out?
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MathematicsKiller
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Just a guess... But Gamma would be best.
Alpha and beta are too ionising, whereas gamma just passes through everything?
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Cora Lindsay
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(Original post by MathematicsKiller)
Just a guess... But Gamma would be best.
Alpha and beta are too ionising, whereas gamma just passes through everything?
Sorry- bad guess.

If gamma 'passes through everything' (it doesn't quite do this, but it transfers energy only slowly to the medium through which it travels), it will leave the pacemaker, taking the energy with it, so there won't be any energy to power the pacemaker. Also, the gamma will give not just the person with the pacemaker a hefty radiation dose, but also people near them. You also don't get pure gamma emission- it always accompanies alpha or beta decay processes.
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waqar_lfc
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Thanks everyone for your help really appreciate it
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