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The concept of the DMSR has emphas-ized proliferation resistance,
and further design efforts would be expected to adhere to proliferation-
resistance criteria. However, no major areas have been identified in
which the R&D requirements for a DNSR would be substantially different
from those for other versions of the MSR concept. Essentially the same
R&D program would be pursued as was planned for the MSBR. The se1eetFon
of a low-power-density core for the DMSR has relieved the requirements fur
core graphite (espectally for gas permeability) and has simplified vessel
design (because graphfte replacement is not required).
a reference DMSR without on-line fuel processing has removed the develop-
ment of on-line processing from the expected critical path for reactor de-
velopment. Processing development should proceed, however, to meet two
clQsely related objectives: (I) development of on-line reprocessing to
obtain the improved fuel utilization of the break-even breeder DMSR op-
tion as soon as possible and (2) development ~f a process (probably using
the same basic technology) for eventual central processing of fuel from
once-through DMSRs, possfbly in secure fuel service centers.
plan.”‘
5.1.3 Base program schedule and costs
The selection of
h R&D base program has been presented in some detail in the program
me projected cost schedule (in 1978 dollars) for each major
development activity annually from 1980 to 1994 and as a total for 1995
through 2011 is given in Table 30. The complete base program is pro-
jected to cost about $700 million over about 30 years.
Some of the costs are targeted for elether the Molten-Salt Test Reac-
tor (MSTR) or the demonstration DXSR (as discussed ita the following sec-
tion), while other costs apply generally t~ the MSR develupment program.
However, these costs do not include design and construction costs for the
reactor plants
The schedule of fuel processing technology development was set up for
the concurrent development of on-line processing. This schedule could be
stretched if the once-through cycle were chosen for the first DMSRs. How-
ever, the development of processing technology is an important goal of the
program in any event.
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