Source Word
delayed neutron
Noun
(nuclear
physics)
A
neutron
produced
as
a
result
of
nuclear
fission
which
is
emitted
upon
the
radioactive
decay
of
a
fission
product
nucleus
seconds
to
minutes
later,
rather
than
at
the
time
of
the
initial
fission
event.
Less
than
2%
of
fission
neutrons
are
delayed
neutrons
(the
exact
proportion
depends
on
the
nuclide
being
fissioned).
Japanese Meaning
核分裂反応によって作られた中性子のうち、初期の核分裂の際には放出されず、核分裂生成物の原子核が放射性崩壊を起こすことによって、数秒から数分後に放出される中性子を指す。 / 全核分裂中性子の中で、約2%未満であり、その割合は反応対象の同位体に依存する。
Sense（1）
(nuclear
physics)
A
neutron
produced
as
a
result
of
nuclear
fission
which
is
emitted
upon
the
radioactive
decay
of
a
fission
product
nucleus
seconds
to
minutes
later,
rather
than
at
the
time
of
the
initial
fission
event.
Less
than
2%
of
fission
neutrons
are
delayed
neutrons
(the
exact
proportion
depends
on
the
nuclide
being
fissioned).
（ plural ）
