July 6, 2007 Neutron Capture in lead

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1. Energy Region 100-500 keV

With lead without CF 252 gamma spectra100 500.jpg

2. Energy Region 500-900 keV

With lead without CF 252 gamma spectra500 900.jpg
We have sharp peak 803 keV is only when there is a lead container. This line coressponds to thermal-neutron capture in lead Pb-205.[1]