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Author Topic: Thorium welding rod exposure  (Read 11542 times)

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Offline Marlin

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Thorium welding rod exposure
« on: Dec 29, 2007, 03:32 »
What is the annual whole body dose to a welder who grinds his own thoriated welding rods? This shouldn't be to hard there are a couple of sources, but I'll post in a week if no one gets it.

Offline PWHoppe

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Re: Thorium welding rod exposure
« Reply #1 on: Dec 30, 2007, 03:00 »
What is the annual whole body dose to a welder who grinds his own thoriated welding rods? This shouldn't be to hard there are a couple of sources, but I'll post in a week if no one gets it.

snip...

"The grinding of the rod to form a pointed end can take anywhere from 20 to 60 seconds depending on the skill of the grinder. For welders that grind their own rods, this can take a minute or even longer. Individuals who specialize in this activity can complete the task much quicker.  At a large facility, e.g., with 50 welders, a grinder might handle as many as 150 rods per day (ca. 3 per day per welder).  For the purpose of the calculations, NUREF-1717 assumed that the particle size AMAD was 1 um.

An individual welder sharpening his own rods was estimated to receive 20 mrem per year.  This would be reduced by a factor of ten or so if a local exhaust system was used.

A dedicated grinder sharpening rods for 200 hours per year without the benefit of a local exhaust system was estimated to receive approximately 800 mrem."


http://www.orau.org/PTP/collection/consumer%20products/weldingrod.htm

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Offline Marlin

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Re: Thorium welding rod exposure
« Reply #2 on: Dec 30, 2007, 07:04 »
 :) Gold Star  :)

Offline SloGlo

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Re: Thorium welding rod exposure
« Reply #3 on: Dec 30, 2007, 10:07 »
'n da dose two da welder helper who slept ina rod bin all day wooda bin watt?
« Last Edit: Jan 01, 2008, 12:15 by SloGlo »
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Cycoticpenguin

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Re: Thorium welding rod exposure
« Reply #4 on: Feb 15, 2008, 12:23 »

A dedicated grinder sharpening rods for 200 hours per year without the benefit of a local exhaust system was estimated to receive approximately 800 mrem."


good lord, how much do they get paid for that?!

atomicarcheologist

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Re: Thorium welding rod exposure
« Reply #5 on: Feb 15, 2008, 06:08 »
good lord, how much do they get paid for that?!

Scale with benefits.  A rem is a rem is a rem.

 


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