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NNTP-Posting-Date: Fri, 04 Oct 2002 14:37:12 CDT
Subject: Re: X-Rays in the garage?
Date: Thu, 03 Oct 2002 19:29:46 -0500
Organization: Majestic 12
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On 3 Oct 2002 03:57:25 -0700, firstname.lastname@example.org (N. Thornton),
masquerading as a MSNBC reporter, said the following to White House
press secretary Ari Fleisher during a press conference concerning the
>>How long a period would I have to
>>coat it? I can just see myself with a hammer in one hand busting
>>glass away and spray enamel in the other hehe.
>I think it would be like that, tens of seconds I would imagine, don't
>truly know though. Nothing to lose if you've got a dead one. Course I
>dont know if there would be a reaction with the paint either...
>How about fluorescent tubes? Wouldn't need to devac them. Would they
Unsure... But it's certainly worth a try eh?
>>Last question on the CRT issue... Could one make a haphazard sweep
>>generator just enough to make a quarter sized spot in the middle of
>>the screen, and then drive the sucker to holy hell and get a weak
>I presume so. Your face plate glass would absorb some of them of
>course. I don't know just what a CRT could take i and V wise, or the
>glass thermally. I expect plenty more V but not i, you'd need to put
>some significant neg bias on the grid to control i. That can be done
>by grounding the control grid and using a cathode resistor. And I
>would take cover in case the glass spot heating caused it to explode
Well... If I do try that method I will likely run it wayyyyy hard out
on the driveway cement. That way, if it's going to go blammo, it can
do it's damage to the trees.
>>What might happen if you drove it so hard that it burnt a
>>hole in the phosphor... Would it still potentially emit radiation, or
>>does the burning destruction also extend to the screen mesh?
>The shadwmask is metal sheet, the phosphor is powder on glass, so I
>think the shadowmask 'd take a lot more hammering than the phosphor.
Huh... I thought it was a wire mesh. Once when I was a kid I detonated
a mini bomb inside the back of a 12" BW tv and could have sworn it was
a mesh that I found in the scattered remains. Hehe.
>>could be done, then it could maybe make a nice tight beam out the
>>front end, thus allowing said nutcase to aim it at said seeds and
>>from said self. Possible?
>The x-rays would come out in all directions. Only the electron beam
>would be a beam.
Pisser. Buuuuut... I could use a lead shield with a hole to create a
>>Shouldn't I be
>>able to create a beam effect using simple aiming techniques, and
>>failing that, shouldn't I just be able to operate the device in a
>I think the lead box is your only aiming technique. Unless you know
>some other you could practically use.
>And lead lining and distance will be your only radiation reduction
>techniques too. I almost got the feeling from what you just said you
>might be considering operating without lead shielding - I am wrong,
Well.. What I was getting at is alot of the responses have suggested
lead lined rooms and lead bodysuits... I figure it would be a great
deal easier and cost effective to simply build a lead enclosure to
house the project than try to plate the whole garage. That way I could
manage six 1/4" to 1/2" lead plates of just big enough size and
actually afford to do it. BTW... Does anyone know of a good,
reasonably cheap source of lead for such things?
>>Does this also mean that 1/8" of lead is not a sufficient sheild for
>>x-rays, and if so, then how can 1/2" of leaded glass be adequate in a
>>CRT? I don't mean this critically, I want to understand this better.
>Well, lead glass can be 24% PbO, so say ballpark figure 20% lead. The
>xray emission from a TV tube is very low to start with, and the glass
>will reduce it to legally accepted levels.
>Every so much distance of lead will reduce the xrays by so many
>percent: I don't know what the figure is offhand. So any lead will
>help things, but to get down to background levels of radiation takes
>an awful lot of lead. In practice you're unlikely to be able to encase
>your experiement room in a foot of lead, or whatever it takes. So that
>leaves you with long distances.
>If you're going to do this you need to calculate and measure.
>Irradiating yourself by mistake would be somewhat foolish.
Agreed. If anyone can tell me what percentage of stoppage for a given
thickness of lead I would really appreciate it!
>A smoke alarm would be a far easier way to mutate seeds. Alpha
>particles are of little danger IFF you keep far enough away from the
>source, since they are absorbed travelling only short distances. On
>the other hand, if you get up close they are much more harmful than
>x-rays, as most x-rays pass though you uneventfully, whereas alphas
>don't. Alphas are more mutagenic for that reason.
>It should be possible to construct a metal chamber to allow you to
>slide seeds in and out without exposing yourself to the alphas. Long
>as you design corrcetly, no great risk there. Certainly be miles safer
>than the sort of stuff you've proposed.
>| | * | | With this you could drop seeds in and out
>| | without any direct path from alphas to
>| | yourself.
>|__________| * is the alpha source.
>I have to say, dont do any of the above, as there are real risks with
>all of it. Unless you really know what youre doing, you could end up
Mmmm. Well. As I said previously I'm really just tossing ideas around
right now... A great deal more reasearch and planning will go into all
of this before I make any sort of move. Thanks for all your help and
have a great day!
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