Re: Pb-210 contamination

[ehsnet!hps (HPS)]

Reply-to: Johnny.Brandon@p0.f13.n233.z1.fidonet.org (Johnny Brandon)
Fido-To: romulus.ehs.uiuc.edu!gsosun1.gso.ur

 r> I have some contamination from the decay products of Ra-226(which is 
 
perhaps you have Ra-226 contamination also :-)
 
 r> If you look up the acceptable surface contamination levels, it is not
 r> clear whether I should treat this as Pb-210 or the decay products of
 r> uranium, because the limits are different.
 
usually, decon guides refer to alpha / beta-gamma / H-3 .... Illinois 
limits (we're an agreement state) are:
ALPHA: 33 dpm/100 cm^2 (removable) and 1,000 dpm/100 cm^2 (fixed).
 
 r> So I am wondering whether I  can release the cabinet for unrestricted 
 
from the range of removable dpm you indicated, looks like you need to 
remove a little more....... ain't radium fun??? :-)
 
good luck.
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