June 19,2007 Cf-252 measurements of gamma-spectrum using HpGe ungated

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Data runs:

1. Polyethylene boron layer of thickness 15 cm was used as a neutron attenuator and for cosmic rays lead of thickness 5 cm in front of HpGe detector. Total time of the run was ~5 h 30 m. Total number of counts: 200,288. The source was Cf-252 (activity 60μCi)

Energy region 100-1000 keV

Ungated spectrum11.jpg

Energy region 1000-2000 keV

Ungated spectrum22.jpg

Energy region 2000-3000 keV

Ungated spectrum33.jpg

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