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isotope [2015/12/28 18:22]
mcmaster
isotope [2016/09/30 20:52] (current)
mcmaster
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 +See also: [[isotope_cots|COTS sources]]
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 ====== Distributors ====== ====== Distributors ======
  
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     * Spectrum Techniques distributor     * Spectrum Techniques distributor
  
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-====== Indirectly obtaining ====== 
- 
-Focus on substances found in commercial products. ​ Things easily obtained at local stores and/or online. 
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-[[https://​www.orau.org/​ptp/​collection/​radioluminescent/​radioluminescentinfo.htm| Radioluminescent Paint]] 
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-===== Am-241 ===== 
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-Can be found in smoke detectors. ​ Modern units typically contain 1 uCi.  However, some (older?) models contain much more such as the Pyrotronics F3/5A (80 uC) 
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-http://​large.stanford.edu/​courses/​2011/​ph241/​eason1/​ 
-  * "a typical modern detector contains about 1.0 microcurie of the radioactive element americium, which is equivalent to 37 kilobecquerel (37,000 decays per second), or 0.33 micrograms of americium oxide (AmO2)"​ 
-  * "The average quantity of americium per detector has decreased from 3 microcurie in 1978." 
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-[[https://​patentimages.storage.googleapis.com/​pdfs/​US3156523.pdf|Element 95 and method of producing said element]] 
-  * Pu/Am chemistry 
-  * Patent: 637,484: separating Pu/U 
-  * Am specific chemistry starts about column 7 
- 
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-===== H-2 (Deuterium) ===== 
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-Deuterium lamps contain a very small amount 
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-===== H-3 (Tritium) ===== 
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-Powerless exit signs can contain several Ci (yes, whole number) to make them glow for a few years 
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-Vendors: 
-  * Exit Light Co: [[http://​www.exitlightco.com/​category/​Power-free-Self-luminous-Tritium-Exit-Signs.html|Power Free Tritium Exit Signs]] 
-  * betalux 
-    * [[http://​www.ebay.com/​itm/​NEW-Betalux-Tritium-Self-Luminous-Radioactive-Powered-Exit-Sign-BX-10-WH-/​281823411224?​hash=item419dfbfc18:​g:​gE0AAOSwhcJWGEht|BX-10-WH $150 each]] 
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-[[http://​www.treehugger.com/​corporate-responsibility/​tales-of-vanishing-tritium-exit-signs-prompt-health-concerns.html|Heist]] 
-  * "​Fifteen thousand missing tritium exit signs at 20 trillion picocuries each means that 300 quadrillion picocuries of tritium"​ 
-  * Pico: e-12 
-  * Trillion: e12 
-  * 20 Ci each 
-  * 20 * 15,000 = 30 kCi 
-  * To put in perspective:​ 
-    * Household smoke detector: 1 uCi 
- 
-2015: 25mm x 3.5mm Tritium filled glasses on eBay for about $16 shipped 
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-[[http://​www.ebay.com/​itm/​Betalight-Self-Luminous-Torch-Tactical-TRITIUM-Grow-Map-Light-Night-Navigation-/​171736713809?​hash=item27fc4e4a51:​g:​TYkAAOSwBLlVF94J|Torch]] 
-  * Wonder how much are in these? 
-  * NSN 6260-99-965-3582 
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-===== Polonium ===== 
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-5 mCi source can be rented for ESD stuff 
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-===== Ra-226 ===== 
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-==== Smoke detector ==== 
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-Smoke detectors can have a small amount. ​ IIRC mine had 0.05 uCi (0.5?) 
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-==== Watch ==== 
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-"The estimated dose from a watch containing 4.5 uCi of radium, a very large amount, would be 310 mrem per year to the gonads."​ 
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-[Radioluminescent Paint] indicates watches can have up to 5 uCi with averages much lower (0.36 uCi peak in the 60's) 
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-===== Th ===== 
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-[[https://​www.orau.org/​ptp/​collection/​consumer%20products/​weldingrod.htm|Welding rods]] 
-  * "By weight...1 or 2 % thorium oxide (thoria)...up to 4 %, have been used 
-  * yellow: 1 % 
-  * red: 2 % 
- 
-[[https://​www.youtube.com/​watch?​v=fsMxha7ZC_Y|How to make thorium dioxide]] 
-  * Place in H2O2 
-  * Takes two weeks to dissolve W, leaving TO2 at bottom 
-  * Filter 
  
  
 
isotope.txt ยท Last modified: 2016/09/30 20:52 by mcmaster
 
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