By now, the
In recent
assume that Napoleon might die of slow poisoning.
hair is regarded as an active body for analysis.
years, it has already been employed in medicine to diagnose
children's nanism caused by being in lack of zinc.
By activation
analysis on the poisonous elements in the hair, such as arsenic, cadmium, mercury, lead, etc., the increase of certain elements
absorbed into human body as a result of pollution source or
food can also be ascertained.
Activation analysis can also be used in criminal detection.
The sample taken from the hand of a suspect, after being subject to activation analysis, can tell not only who the criminal is,
but also what kind of cartridge he used, how many bullets he shot
and which hand he used to hold the gun, thus providing the
evidence for criminal detection.
According to the different kinds of particles shot into
samples, the activation analysis can be divided into fast
neutron activation analysis, thermal neutron activation analysis
and charged-particle activation analysis.
Ion-Beam Analysis
When different high-speed charged particles are shot at
the target atoms, different kinds of radiation will be produced.
The measuring of these different radiations and the analyzing
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