[ RadSafe ] Radioactive lantern mantels

[Doug Huffman]

Reliably radioactive or reliably supplied?

Coleman Corp. still sells Welsbach mantles and there is still 
controversy about the use of thorium nitrates in their production.  This 
  controversy is over 0.4 milliRem per year dose commitment.

Johnston, Thomas P. wrote:
> Hello,
> Does anyone know of a reliable supplier for radioactive lantern mantles? This is a professionally-related inquiry and request.
> Thank you in advance for your assistance.
> 
> Best regards,
> 
> Thomas Johnston
> Health Physicist
> NIST Center for Neutron Research
> National Institute for Standards and Technology
> 100 Bureau Drive, Stop 1733
> Gaithersburg, MD 20899
> 301-975-5815
> thomas.johnston at nist.gov<mailto:thomas.johnston at nist.gov>
> 
> 
> 
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