Accurate absolute intensities for the 35Cl(n,γ) reaction gamma-ray standard

The absolute intensities of 36 γ-rays in the energy range of 292-8579 keV from neutron capture in chlorine were remeasured at the Budapest cold neutron prompt gamma activation analysis facility. The 1% level of accuracy of the nitrogen standard was practically achieved for the relative intensity of most of the 36Cl γ-rays, thus making chlorine a useful secondary standard for efficiency calibration of germanium detectors