beta particle generators

Discussion in 'Physics & Math' started by spaz, May 11, 2010.

  1. spaz Registered Member

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    5
    does anybody have any thoughts on beta particle generators or have any links to research data. :shrug:
     
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  3. AlphaNumeric Fully ionized Registered Senior Member

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    Beta particles are electrons formed by a weak mediated decay process in a neutron, \(n \to p + e^{-} + \nu_{e^{-}}\) or the antimatter partner, the positron, which is produced by a process roughly the reverse, \(p \to n + e^{+} + \nu_{e^{+}}\).

    Its simple to get a beam of electrons, old TVs and computer monitors used such a beam to make the image on the screen. The beam is formed by applying a magnetic field to a hot anode at the back of the box to 'pull' the electrons out.

    A beam of positrons is more difficult as you need to make them, they aren't contained naturally within any normal matter. Wiki will know.
     
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  5. spaz Registered Member

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    5
    beta particle

    right, but i was asking if anyone knew of any research into beta particle generator technology. maybe using carbon 14 or tritium or some other unstable beta particle.
     
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  7. Walter L. Wagner Cosmic Truth Seeker Valued Senior Member

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    Get one of those old pieces of Fiestaware or similar orange-glazed pottery or tile. They emit lots of betas from the Uranium radiodaughters. It's relatively low flux, however (a few kiloBq per pottery piece, or thereabouts).
     
  8. kevinalm Registered Senior Member

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    993
    Actually, the electrons are "boiled" out of the _cathode_ thermally, and accelerated and focused by _electric_ fields established by metal plates, grids, etc. maintained at various voltages. These components are collectively called the 'electron gun' and reside in the long, thin neck at the back of a crt. (cathode ray tube or picture tube as it is commonly called) Magnetic fields are used only to steer the beam, providing horizontal and vertical deflection.
     
  9. spaz Registered Member

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    5
    beta

    which beta particle has the highest ev output.
     
  10. Pete It's not rocket surgery Registered Senior Member

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    10,167
    Beta decay electrons have much higher energy than cathode ray electrons.
    Why? What are you planning?
     
  11. spaz Registered Member

    Messages:
    5
    beta particles

    i am building a beta particle generator and i was trying to get feed back and find out what people know of them.
     
  12. rpenner Fully Wired Valued Senior Member

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    4,833
    This is an engineering and materials problem, and yet you provide no application or specs.
     
  13. spaz Registered Member

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    5
    beta generator

    i would like to know if anyone knows anything about beta particles.
     
    Last edited: May 15, 2010
  14. draqon Banned Banned

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    35,006
    sure, get some: strontium-90, potassium-40, technetium-99, tritium, or carbon-14.
     

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