[ RadSafe ] license for neutron source?

[JGinniver at aol.com]

Given the difficulties in obtaining neutron sources these days and then the  
subsequent difficulties of disposal, have the considered using a sealed tube  
neutron generator, such as the one described at 
_http://www.thermo.com/com/cda/resources/resources_detail/1,2166,11801,00.html?fromPage=search&keyword=neutro
n+generator_ 
(http://www.thermo.com/com/cda/resources/resources_detail/1,2166,11801,00.html?fromPage=search&keyword=neutron+generator) 
 
I understand that the following companies can supply different  models/types:
    MANUFACTURERS OF COMPACT  ACCELERATOR NEUTRON TUBES  UNITED STATES 
Primary focus  _Baker Hughes,  Inc._ (http://www.bakerhughes.com/)  (Houston, TX) 
Oilfield services  _Halliburton  Co._ (http://www.halliburton.com/)  (Houston, 
TX) Oilfield services  _Schlumberger  Ltd._ (http://www.schlumberger.com/)  
(Princeton, NJ) Oilfield services  _Thermo Electron  Corp._ 
(http://www.thermo.com/)  (Colorado Springs, CO) All commercial applications
 
I would have thought that licensing requirements would be easier than for a  
sealed source, athough I'm sure others on the list can answer this better than 
 me.
 
Regards,
    Julian