INDC(SEC)-46/U+R+F+SIN DC INTERNATIONAL NUCLEAR DATA ...
INDC(SEC)-46/U+R+F+SIN DC INTERNATIONAL NUCLEAR DATA ...
INDC(SEC)-46/U+R+F+SIN DC INTERNATIONAL NUCLEAR DATA ...
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Ill.iii<br />
Over the next six months data requirements for interpretation<br />
of integral experiments on LiP<br />
systems are expected to become<br />
apparent. Immediate data requirements are for inelastic .excitation<br />
19<br />
cross sections to the first few excited states of F for incident<br />
neutron energies of less than 1 MeV to 15 MeV with an accuracy of<br />
10 to Yjfo and for partial excitation cross sections for different<br />
modes of ^Li (n,n'a t) to interpret tritium production. A review<br />
19<br />
of existing data for inelastic cross sections of F and theoretical<br />
calculations for ^Li (n, n'a t) are in progress.<br />
3. The Federal Republic of Germany:<br />
The following comments regarding the data requests from Germany<br />
were communicated to the Agency in 1973 by S. Cierjacks:<br />
It has been shown 3 that in principle a large number of fusion<br />
reactions can be considered for energy production in a thermonuclear<br />
reactor. The three most important reactions are the<br />
following:<br />
D + T<br />
D + 3 He<br />
2D + 2D<br />
4 He (3.52 MeV) + n (14.O6 MeV)<br />
^He (3.67 MeV) + p (14.67 MeV)<br />
T (1.01 MeV) + p (3.03 MeV)<br />
3 He (0.82 MeV) + n (2.45 MeV)<br />
Among these the D + "^He-reaction is - from a theoretical point<br />
of view - the most, interesting process, since both reaction products<br />
are stable charged particles. Their energy should thus be easily<br />
utilized, and there might even be a possibility for direct conversion<br />
of the kinetic energy to electric power. However, 3 He is a very<br />
scarce component in the natural isotopic composition of helium, and<br />
consideration of net power yields attainable with the above reactions<br />
shows that this quantity for the D + T-process exceeds the yield for<br />
the D + 3 He- and the D + D-rea,ction by two and three orders of magnitude,<br />
respectively. Therefore, from the present stage of knowledge,<br />
the first prototype reactor will be most probably a DT-reactor.<br />
3 V.S. Crocker, S. Blow and C.J.H. Watson, Nuclear Data for Reactors,<br />
(Proc. Conf., Helsinki, 1970), IAEA, Vienna, 1970, Vol. I, p. 67.