Re:

["Mike Malaxos" <rss@arach.net.au>]

Hullo Radsafers,
		Dumb question of the month,

I would welcome your comments on the following;

Potential for pressure build-up of Radon in double encapsulated special
form sources
Method of calculating this build-up if it exists.
Details of any experience with incidents arising from pressure build-up.

Has any one experience in calculating a pressure equalibrium which takes
into account the migration of gas through the metal walls of any source
capsules.

Is there any pressure build-up due to Helium formed from Alpha /beta
combination. 
Do all alpha emitters have an internal pressure problem
Does the migration of gas through the capsule wall cause pressure
equilibrium. . 
Do Ra 266 sources have an internal Helium and Radon gas pressure build-up. 

Thanks for your advice.

Best Regards
M.Malaxos
Radiation Safety Services
69-71 Robinson Avenue Belmont
Western Australia.  6104 
Fax 61 89 475 0165
P 61 89 475 0099  a/h 089 255 1214
email rss@arach.net.au
 

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