July 6, 2007 Neutron Capture in lead

From New IAC Wiki
Jump to navigation Jump to search

Paraffin wax layer of thickness 12.6 cm was used as a neutron attenuator and for cosmic rays lead of thickness 10 cm on sides of HpGe detector. The source was Cf-252 without and with lead container of 60μCi activity.

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 on 803 keV, which is the result of the lead container. It is mdominant only when we have lead pig. However, 388 kev and 333 kev, Cf-249 energy lines have more counts without lead. This line coressponds to thermal-neutron capture in lead Pb-206.[1]

Retrieved from "https://wiki.iac.isu.edu/index.php?title=July_6,_2007_Neutron_Capture_in_lead&oldid=18781"