Joint IAEA-ICTP Workshop on Nuclear Reaction Data for Advanced Reactor Technologies. Student’s presentation Calculation of correction factors for neutron capture cross section measurements Pham Ngoc Son, Nuclear Research Institute, VAEC, Vietnam. Introduction.
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Calculation of correction factors for neutron capture cross section measurements
Pham Ngoc Son, Nuclear Research Institute, VAEC, Vietnam
fc: correction factors
Exactly estimation of neutron spectrum
Unfolding neutron spectrum of 54keV filtered neutron beam at Dalat Reactor
Unfolding neutron spectrum of 148.3keV filtered neutron beam at Dalat Reactor
In a neutron activation experiment, the reaction rate will be measured indirectly, by detection of emitted decay gamma rays from the product nucleus:
Can be Measured by using a HPGe Detector
The second term accounts for the effect of neutron in background region.
The first term of the reaction rate accounts for the effect of neutrons in the primary region of spectrum.
Results of measured capture cross section for some nuclei