検索結果- 英語 - 英語
検索内容:
critical apparatus
prompt critical
adj
delayed criticality
noun
(nuclear
physics)
The
point
at
which
the
prompt
neutrons
and
delayed
neutrons
produced
by
a
nuclear
fission
chain
reaction,
taken
together,
are
just
sufficient
to
sustain
the
chain
reaction
(the
state
of
being
delayed
critical);
in
this
state,
changes
in
reaction
power
occur
slowly,
allowing
the
reaction
to
be
controlled
on
human
timescales,
due
to
the
relatively
long
time
delay
associated
with
the
emission
of
the
delayed
neutrons
necessary
to
maintain
the
chain
reaction.
delayed critical
adj
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