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Figure 3.2: Decay scheme of gold-198 after gone
through neutron-captured nuclear reaction of gold-197
with thermal neutron
This is typical nuclear reaction as a principle in neu-
tron activation analysis. There is also nuclear reaction
can happened for production of proton(p), alpha (α)
and also neutrons. In this case, the nuclear reaction is
denoted as (n,p), (n,α) dan (n,2n). The probability of
interactions that nuclear reaction take place is strongly
different fpr different reaction, types, elements and en-
ergy distributions of the bombarding neutrons. In nu-
clear reactor, nuclie 235U is fissionable upon interac-
tion with neutron as denoted by (n,f) when yield fission
products and (n,2n’) as two fast neutron are emitted.
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