Se-75 for industrial radiography

["Dahlskog, Leif" <Leif.Dahlskog@health.wa.gov.au>]

I would be interested in hearing any comments or concerns from the more
knowledgeable list members than myself about the use of Se-75 for industrial
radiography.  

My understanding is that Se-75 has been used for this purpose in the middle
east, U.K and possibly elsewhere in Europe. Has it been used in the U.S ?

Many of the important parameters from someone wishing to use it look quite
good (half life 118 days, gamma constant 0.48 R/h/Ci @ 1m, energies - 66 keV
410 keV, useful thickness range 4mm - 28mm). 

Does any one know of any particular safety concerns applying to this isotope
that warrant special consideration. 

Your comments are welcome.

Regards

Leif Dahlskog
Scientific Officer
Radiation Health Section
Health Department of Western Australia
leif.dahlskog@health.wa.gov.au

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