C-14 at Research Reactors

[Les Slaback <lester.slaback@nist.gov>]

Question asked.....
2. What is the emission of C-14 from different research reactors? Is
there any methods to decrease the emission? Is neutron activation of O
and N in water the main source for C-14 in research reactors?

Very low.
Reduction methods are the same as for reducin Ar-41 production, exclude air
(usually by the use of CO2).
Yes, primarily N(n,p).
Disclaimer:  the above are the personal musings of the author, and do not
represent any past, present, or future position of NIST, the U.S. government,
or anyone else who might think that they are in a position of authority. 
Lester Slaback, Jr.  [Lester.Slaback@NIST.GOV] 
NBSR Health Physics 
Center for Neutron Research 
NIST
100 Bureau Dr.  STOP 3543 
Gaithersburg, MD  20899-3543 
301 975-5810 
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