[On_site_list] March 6, 4pm: JLab Colloquium: Applications of Electron Linacs for Isotope Production

[deborah magaldi]

*Jefferson Lab Colloquium

Applications of Electron Linacs to Isotope Production

D.P. Wells
South Dakota School of Mines and Technology*

*ABSTRACT*
The application of accelerators to isotope production has a long history 
of successes, primarily with positive ion accelerators.  Electron 
linacs, in contrast, have played a very limited role in isotope 
production.  The primary reason behind the limited role of electron 
linacs in isotope production lies in the low specific activity that is 
readily attainable with bremsstrahlung-based photo-nuclear reactions.  
It is important to note, however, that photo-nuclear reactions, coupled 
with thick targets, can be used to produce large quantities of total 
radioactivity.  However, there are some circumstances, largely 
unexploited, whereby high specific activity is achievable with 
photo-nuclear reactions.  This presentation will report on electron 
linac-based photo-nuclear isotope production research, with an emphasis 
on several isotopes of interest for research and medicine, including 
18F, 64Cu, 67Cu, 99Mo/99Tc, 111In and 131Ba/131Cs.  Some of the 
technical challenges that photo-nuclear production face are reliable 
high-power electron beams (tens of kW at 30 MeV or higher), target 
cooling, overcoming radiolytic chemical reactions and high specific 
activity.  In addition, linacs coupled to subcritical assemblies can 
produce the full gamut of reactor-based isotope production.  Each of 
these will be addressed.

*Wednesday, March 6, 2013
4 p.m.
CEBAF Center auditorium
Cookies & coffee in the CEBAF Center lobby, 3:30 p.m.*

--
Regards,
Deb Magaldi
Jefferson Lab
Public Affairs
x5102
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