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Author Topic:   polonium halos
jgbrawley
Junior Member (Idle past 5621 days)
Posts: 3
From: Missouri, USA
Joined: 11-29-2008


Message 210 of 265 (489779)
11-29-2008 11:52 PM
Reply to: Message 141 by AlphaOmegakid
10-28-2008 3:38 PM


Re: Wrong Wrong Wrong Wrong Wrong Wrong Wrong Wrong Wrong
I was poking around on the web after some years, and ran across this message, in which I find myself accused (by implication?, or baldfacedly?) of lying.
I most certainly *did* "talk my way inside" at Oak Ridge. I was unannounced and unexpected, just showed up one day and described what I was on about. Mr. Dickens was called by the receptionist, and he came out and took me into his office, where we had lunch.
It's difficult enough to do a useful piece of scientific field and microscope work, and to put all that up on a website for the perusal of anyone interested, without having to correct a mind apparently *so* closed that it (he? she?) refuses to believe plain English writing. I'm rather taken aback by this.
As to the fuzziness of the Po-210/Rn-222 ring, remember that the Radon atom contributing to the ring would be *in motion* when it decayed, but the subsequent daughters --218Po, 214Po, and 210Po, would not be, the Po having become electronegative once it was no longer Radon.
'Nuff said; I just wanted to respond to someone accusing me of lying in my paper on the Po halo issue.
jgbrawley@charter.net

This message is a reply to:
 Message 141 by AlphaOmegakid, posted 10-28-2008 3:38 PM AlphaOmegakid has not replied

  
jgbrawley
Junior Member (Idle past 5621 days)
Posts: 3
From: Missouri, USA
Joined: 11-29-2008


Message 211 of 265 (489780)
11-30-2008 12:03 AM
Reply to: Message 209 by RAZD
11-29-2008 4:06 PM


Re: 222Rn found -- as predicted.
I was poking around on the web, checking how far my work had spread in the months since last I checked, and found you here, defending the radon-222/polonium-210 ring misidentification/confusion issue that I mentioned in my paper.
I wanted to thank you for the effort you've put into this. The work on those images is nice. ( I also left a correction for the person who accused me of lying in my paper, about talking my way into Oak Ridge back in 1992 when I did that work. I most assuredly *did* get inside with nothing but my sincerity and knowledge of the issue.)
Thanks for your support.
jgbrawley@charter.net

This message is a reply to:
 Message 209 by RAZD, posted 11-29-2008 4:06 PM RAZD has replied

Replies to this message:
 Message 212 by RAZD, posted 11-30-2008 8:25 PM jgbrawley has replied

  
jgbrawley
Junior Member (Idle past 5621 days)
Posts: 3
From: Missouri, USA
Joined: 11-29-2008


Message 213 of 265 (490039)
12-01-2008 7:58 PM
Reply to: Message 212 by RAZD
11-30-2008 8:25 PM


Re: Thanks, JG Brawley
Thanks for responding.
I'd like to comment on two things, one from here and the other from the forum you pointed me toward:
1) (here): Note that when each radon atom decays and sticks (assuming it does) and then goes through the Po decays to 206Pb, it leaves a physical object of some size behind (a lead atom) that wasn't there before. Thereby, gradually over time, the crack or conduit *narrows* at that location, altering the probabilities for subsequent radon atoms to get past the ever-narrowing location. This should cause some strings and drifts of haloes to show strange distributions of different-density haloes (which is what I observe in the mica).
2) (there; the 238U earth-age discussion) : You immediately (I'm starting reading at the thread beginning) mention the type of damage done to the mica by the alpha particles, and I see you note high resolution transmission electron microscope studies have been done on some haloes in some mica. This I think (I mention it in passing, in my paper) leads to the idea that one could *unambiguously* differentiate a "polonium" halo (if any exist) from a radon halo:
Given a pie-wedge shaped section, its point centered on the radiocenter, each ring section in the pie wedge *must* have the same number of damage locations in it, IFF it is a "polonium" halo, but the *radon* halo must have twice as many damage locations in the innermost ring, as are in either of the other two, the outer, rings.
If these damage locations can be imaged, to the extent of actually being able to count them more or less accurately, then identification of a radon halo as opposed to a "polonium" halo, becomes trivial.
It is a pleasure to read in these forums. I'll probably continue to check in from time to time, and it is definitely a pleasure to read *you*, showing so much detailed understanding and interest.
Please keep on keepin' on.
Sincerely,
John Brawley

This message is a reply to:
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