210Pb Bremsstrahlung Emission Spectrum from Lead

Details 210Pb Bremsstrahlung Emission Spectrum from Lead 210Pb Bremsstrahlung Emission Spectrum from Lead

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008apsp.conf...65f&link_type=abstract

ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS. Proceedings of the 10th Conference. Held

Physics

Medical Physics

Scientific paper

The 46.5 keV gamma intensity of 210Pb in the background of germanium spectrometers can be easily reduced by inner lining of lead shield, but the bremsstrahlung from the 1.16 MeV maximal energy beta decay of 210Bi (daughter of 210Pb) will reach the Ge detector. The emission spectrum of this bremsstrahlung is calculated by numerically fitting the beta spectrum and integrating the Koch-Motz formula. The absorption of the bremsstrahlung spectrum in the lead and detection efficiencies for Ge detector are calculated by the effective solid angle algorithm, using correction for photopeak/compton ratio of cross sections in Ge. The calculated bremsstrahlung intensity is in good agreement with the experimental result derived in Max Planck Institute, Heidelberg.

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