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Thread: is it possible - radiation powered snow globe?

  1. #1

    Default is it possible - radiation powered snow globe?

    I was wondering if any CPF'er knew enough about low level radiation to tell me if my hairbrained, mad scientist idea would work.

    Get a low level (Alpha or Beta) radiation source and embed it into a resin based scintilator. Scintilators react to radioactivity by converting the particle strikes into UV.

    If a glow powder were mixed into the resin, would there be enough secondary light to register with the human eye?

    Alpha wouldn't penetrate the resin more than a mm, so any effect it had would look like it was on the surface of the specimen. Beta would penetrate a bit, (I'm thinking a few cm) but the whole thing could be cast in a lead crystal box to begin with. Any residual gama would hopefully be toned down by the lead crystal sides.

    Dangerous? yep..
    Insane? Maybe..
    Cool! Definitely..

    Possible? You tell me. [img]images/icons/grin.gif[/img]

    I know this will work. My problem I don't know what cpm I'll need to make it visible. I seen small specimens with 25,000 cpm (mostly Beta) that looked ideal, but I don't know how many UV photons a scintilator releases per strike or how many photons the glow powder releases per UV photon.

    I got the idea from my mickey mouse fantasia snow globe. It has the comet lit by an LED.

    ps. Anybody know how to convert lumens into photons?

  2. #2
    *Flashaholic* B@rt's Avatar
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    Default Re: is it possible - radiation powered snow globe?

    This post is edited...sorry.

  3. #3
    Farewell our Curmudgeon Administrator Roy's Avatar
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    Default Re: is it possible - radiation powered snow globe?

    WARNING!

    Remember that alpha emitting compounds are almost allways bone seakers! I for one don't want alpha particles messing with my blood producing bone marrow.

  4. #4
    Flashaholic
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    Default Re: is it possible - radiation powered snow globe?

    tease! TEASE! i want one! sheeeeeesh!

    want want want want want!

    microtec tease!

  5. #5
    *Flashaholic* Brock's Avatar
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    Default Re: is it possible - radiation powered snow globe?

    Yup, I think I need one...

  6. #6
    *Flashaholic* B@rt's Avatar
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    Default Re: is it possible - radiation powered snow globe?

    I found some UK dealers...
    Drop Zone Supplies Sells them for $160.-...
    international shipping available.
    Softmilitary.co Sells them for $120.-...
    Not sure if they ship internationally.

  7. #7
    Flashaholic*
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    Default Re: is it possible - radiation powered snow globe?

    Originally posted by *BlackBart*:
    I found some UK dealers...
    Drop Zone Supplies Sells them for $160.-...
    international shipping available.
    Softmilitary.co Sells them for $120.-...
    Not sure if they ship internationally.
    <font size="2" face="Verdana, Arial">I wonder what the difference is in the MAC105 and the MAC106? (aside from variable brightness) [img]images/icons/confused.gif[/img]
    -Also, I'm sure I saw two different sizes of that same type light on a different website about a year ago.

  8. #8
    *Flashaholic* B@rt's Avatar
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    Default Re: is it possible - radiation powered snow globe?

    Saw the two sizes too, but couldn't find them anymore...

  9. #9
    *Flashaholic* B@rt's Avatar
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    Default Re: is it possible - radiation powered snow globe?

    Yeah,but remember your battery-savings... [img]images/icons/grin.gif[/img]

  10. #10

    Default Re: is it possible - radiation powered snow globe?

    Kinda confused about what ya'll are talking about..

    Do you mean these?


    Also found here

    Pretty cool really..

    But not what I was thinking. I don't want a portable light source powered by atomic fission. What I wanted was something like a paperweight with a naturaly radioactive rock surrounded by a diffuse blue (or maybe green, ala tommyknockers) glow.. Like this:


    I've checked into it and I think its doable. Thanks to mr.glows lead (thanks! [img]images/icons/grin.gif[/img] ), I found that radium hands gives off about 1mRem/hr and are pretty visible. These rocks I'm checking out give off around 20mRem/hr.

    Only thing I don't quite get is how Radium gets converted by the phospher. I thought phospers reacted to mostly just UV. Radium and all its daughter product stick to beta and alpha. Where is the conversion taking place?

    I'd love to skip a step if I can, but I really want a transparent container and glow medium. It's the only way to get a diffuse glow.

    ps. I've read (not verified) that dust stuck to monitors gets radiactive from the crt. 1500 cpm!! (background is usually around 10cpm) Doesn't last long at all tho, a very short half life of a coupla minutes.

  11. #11
    Flashaholic* AilSnail's Avatar
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    Default Re: is it possible - radiation powered snow globe?

    ..MUST.. HAve radioactive LAMP!!! how are they adjusted? is it just a shutter? how big are they? how long before 50% light (or something)? [img]/ubbthreads/images/graemlins/eek.gif[/img]

  12. #12
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    Default Re: is it possible - radiation powered snow globe?

    [ QUOTE ]
    AilSnail said:
    ..MUST.. HAve radioactive LAMP!!! how are they adjusted? is it just a shutter? how big are they? how long before 50% light (or something)? [img]/ubbthreads/images/graemlins/eek.gif[/img]

    [/ QUOTE ]
    Source is Tritium [³H], half-life (50% reduction of light output) -approx 12.5 years.

    edit:
    thanks AilSnail..haven't seen that particular website before.

  13. #13
    Flashaholic* AilSnail's Avatar
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    Default Re: is it possible - radiation powered snow globe?


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