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[–] 99 points 5 months ago (12 children)

I see the stylisric reason to only apply the effect around the object, but it isn't realistic.
That radiation isn't affected by optics, it'll go right through the lenses that flip and focus the image and the aperture that might be engaged, and will hit the entire sensor equally. The entire image should be that noisy.

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  • [–] 4 points 5 months ago (2 children)

    Beta particles wouldn't go through the glass in the first place.

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  • [–] 7 points 5 months ago (1 child)

    The beta emission of ⁶⁰Co can probably get through over 6mm of glass. This should be plenty for phones.

    But also

    ⁶⁰Co undergoes beta decay to an excited state of the stable isotope nickel-60 (⁶⁰Ni), which then emits two gamma rays [...]

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  • [–] 4 points 5 months ago (4 children)
  • [–] 3 points 5 months ago (2 children)

    Oh cool

    So if you had a camera with mirror would it still go a bit through the enclosure and hit the sensor?

    What if the sensor is flipped so it has to go through the silicon substrate before hitting the sensitive bits, would it be equally noisy but less noisy overall?

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  • [–] 6 points 5 months ago* (last edited 5 months ago) (1 child)

    Yes. Silicon substrate is too thin to matter. Redirecting with mirrors is probably gonna make it worse. Your housing would need over a cm of solid plastic to block beta radiation. On a dedicated camera you might have a sizeable lens with many lenses totalling a cm of shielding, but redirect the light and place the sensor not behind the lens and you only have that camera housing.

    Realistically though you have a smartphone, and that β-radiation will probably make it most of the way through the entire thing.

    And the gamma radiation really won't care, even if you have a 50cm long zoom lens right between the sensor and source.
    This is where you might want a lead brick wall, 10cm thick should make it short-term safe for ⁶⁰Co.

    Edit: forgot this was in general, not about the β

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  • [–] 69 points 5 months ago (13 children)

    Replicas of Cobalt-60 sources can be got on Ebay for as little as $12.

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  • [–] 34 points 5 months ago (11 children)

    why would you even make that what purpose does that serve

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  • [–] 53 points 5 months ago (6 children)

    Paperweight / conversation starter. As long as you know it's not real, it's just a cool chunk of brass.

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  • [–] 22 points 5 months ago (5 children)

    Shouldn't be allowed to exist. This removes the terror and fear of seeing an actual Co-60 rod and may kill someone.

    Never abuse warning labels for comedic effect. This is deadly.

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  • [–] 10 points 5 months ago (1 child)

    Yeah, wasn't a source lost on the side of the road in Australia a year or two ago where anyone could have picked it up if they didn't know better

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  • [–] 1 point 5 months ago

    Never abuse warning labels for comedic effect. This is deadly.

    A few years ago, there was a news story about a guy driving with radiation warning labels on his car for fun. He got fined HARD because he wasn't certified for that or had the permits .

    Doesn't matter if you don't have actual radioactive material. That shit is illegal for a good reason.

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  • [–] 51 points 5 months ago (1 child)

    I highly recommend holding it within 3 feet of your body for 5 to 10 minutes; absolutely nothing can go wrong from holding a Cobalt-60 source with 3540 Curies in 1963 within 3 feet of your body for 5 to 10 minutes!

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  • [–] 45 points 5 months ago* (last edited 5 months ago) (1 child)

    Y’all looking at the radio-active isotope, while I can’t see past the mutated hotdog fingers

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  • [–] 45 points 5 months ago (2 children)

    Replaced phone after the screen started bubbling for some reason.

    Hand fell off.

    Using other hand on a new phone, but I'm having trouble seeing anything at all now

    thnx

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  • [–] 31 points 5 months ago

    That's a magic wand which makes the air taste like pennies.

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  • [–] 20 points 5 months ago (1 child)

    ... forbidden toosie roll ...

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  • [–] 17 points 5 months ago (1 child)
    [–] 13 points 5 months ago (5 children)
  • My neighbour really wants some strontium 90 flavoured chocolate.

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  • [–] 2 points 5 months ago

    Looks like a radiation warning on that.

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