[ RadSafe ] Neutron flux from electron accelerators

[Jim Hardeman]

Jeff --
 
What's the energy of the electrons? If you've got energies up around 10 MeV, depending on the target you'll get ~10 MeV gammas -- which can then induce photo-fission. There are also lots of materials out there that have decent cross-sections for gamma-n reactions.
 
Just speculating here ...
 
 
Jim Hardeman, Manager
Environmental Radiation Program
Environmental Protection Division
Georgia Department of Natural Resources
4220 International Parkway, Suite 100
Atlanta, GA 30354
(404) 362-2675
Fax: (404) 362-2653
Personal fax: (404) 521-4485
E-mail: Jim.Hardeman at dnr.state.ga.us 


>>> "Kulp, Jeffrey B" <kulpjb at wsu.edu> 10/29/2008 19:28 >>>
Hello radsafers,



                I am curious how neutrons are produced in an electron
(and positron?) accelerator. Can anyone offer a brief explanation?



Thanks in advance,



Jeff Kulp

Washington State University

Radiation Safety Office

Pullman, WA 99164-1302

(509) 335-8175



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